WO2021249329A1 - 一种分子级装置的实时优化方法、装置、系统及存储介质 - Google Patents
一种分子级装置的实时优化方法、装置、系统及存储介质 Download PDFInfo
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- G16C10/00—Computational theoretical chemistry, i.e. ICT specially adapted for theoretical aspects of quantum chemistry, molecular mechanics, molecular dynamics or the like
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
- C10G11/18—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised-bed" technique
- C10G11/187—Controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G35/00—Reforming naphtha
- C10G35/24—Controlling or regulating of reforming operations
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/72—Controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/36—Controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/005—Coking (in order to produce liquid products mainly)
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/20—Identification of molecular entities, parts thereof or of chemical compositions
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/90—Programming languages; Computing architectures; Database systems; Data warehousing
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C60/00—Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/10—Analysis or design of chemical reactions, syntheses or processes
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/30—Prediction of properties of chemical compounds, compositions or mixtures
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/70—Machine learning, data mining or chemometrics
Definitions
- the present invention relates to the technical field of petroleum processing, in particular to a real-time optimization method, device, system and storage medium of a molecular-level device.
- the present invention provides a method, device, system and storage medium for real-time optimization of molecular-level devices.
- the present invention provides a method for real-time optimization of a molecular-level device, which includes the following steps:
- the corresponding fractions are used as the petroleum processing raw materials, respectively, and input the pre-trained product prediction model corresponding to the petroleum processing device to obtain the predicted molecular composition and the predicted molecular composition of the corresponding predicted product output by the product prediction model.
- the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition it is determined whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set ;
- the predicted product does not meet any of the preset standards of the target product corresponding to the predicted product in the preset standard set, then adjust the operating parameters in the product prediction model to reacquire the predicted product
- the predicted molecular composition and the predicted molecular content of each single molecule in the predicted molecular composition until the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set.
- the method preferably further includes:
- any of the input flow does not meet the preset input flow range of the corresponding petroleum processing device, adjust the preset raw material ratio, and re-use the corresponding fractions as petroleum according to the adjusted preset raw material ratio.
- the processing raw materials are respectively input to the product prediction model of the corresponding petroleum processing device; until each of the input flow rates meets the preset input flow range of the corresponding petroleum processing device.
- each input flow rate meets the preset input flow rate range of the corresponding petroleum processing device, it is considered that the subsequent steps can be performed to obtain the predicted molecular composition and the predicted molecular composition of the corresponding predicted product.
- the steps for predicting the molecular content of each single molecule in the molecular composition are described.
- the judging whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set preferably includes:
- the steps of obtaining the predicted molecular composition of the corresponding predicted product and the predicted molecular content of each single molecule in the predicted molecular composition are executed.
- the method preferably further includes:
- Each of the predicted products is used as a product blending raw material for blending according to a set of preset rules to obtain the molecular composition of multiple sets of mixed products and the content of each single molecule in the mixed product;
- the product physical properties of each group of mixed products are calculated according to the molecular composition of each group of mixed products and the content of each single molecule in the mixed products.
- the judging whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set preferably includes:
- the target parameter meets the preset condition, determine that the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set, and output the preset raw material ratio and product prediction model Set with preset rules as the production and processing plan;
- the operating parameters in the product prediction model and the preset rules in the preset rule set are adjusted, and multiple sets of mixed products are re-obtained until each set of mixed products is The product properties meet the preset product properties, and all the target parameters in the mixed product meet the preset conditions.
- said obtaining target parameters according to all said mixed products and determining whether said target parameters meet a preset condition preferably includes:
- the operating parameters include the temperature of the environment in which the reaction path in the product prediction model is located, and the adjustment of the operating parameters in the product prediction model preferably includes:
- the operating parameter includes the pressure of the environment in which the reaction path in the product prediction model is located, and the adjustment of the operating parameter in the product prediction model preferably includes:
- the calculation of the product physical properties of each group of the mixed product according to the molecular composition of each group of the mixed product and the content of each single molecule respectively preferably includes:
- the first component of each group of mixed products is obtained Two-molecule composition and the content of the second component of each single molecule in each group of the product blending raw materials;
- the calculation of the physical properties of each single molecule preferably includes:
- the number of groups of each group constituting the single molecule and the contribution value of each group to the physical properties are input into a pre-trained physical property calculation model to obtain the physical properties of the single molecule output by the physical property calculation model ;in,
- the physical property calculation model is used to calculate the physical properties of the single molecule according to the number of groups of each group contained in the single molecule and the contribution value of each group to the physical properties.
- the method preferably further includes:
- the group quantity of each group constituting the single molecule is compared with the molecular information of the template single molecule with known physical properties pre-stored in the database; the molecular information includes: each type of the template single molecule constituting the template single molecule The number of groups;
- the template single molecule is the same as the single molecule, output the physical properties of the template single molecule as the physical properties of the single molecule;
- the template single molecule that is the same as the single molecule does not exist, perform the number of groups of each group that will constitute the single molecule and the contribution value of each of the groups to the physical properties, and enter it in advance. The steps of training the physical property calculation model.
- the step of training the physical property calculation model preferably includes:
- the physical property calculation model If the deviation value between the predicted physical property and the known physical property is less than the preset deviation threshold, it is determined that the physical property calculation model has converged, and each group pair is obtained from the converged physical property calculation model. The contribution value of the physical property, and the contribution value of the group to the physical property is stored;
- the contribution value of each group in the physical property calculation model to the physical property is adjusted until the physical property calculation model Convergence.
- said obtaining the group quantity of each group constituting the sample single molecule preferably includes:
- a plurality of groups that exist at the same time and contribute to the same physical property are regarded as a multi-level group, and the number of the plurality of groups is regarded as the level of the multi-level group.
- the physical property calculation model preferably determines the physical properties of a single molecule in the following manner:
- the physical properties of the single molecule are obtained according to the sum of the corresponding products of various groups.
- f is the physical property of the single molecule
- n i is the number of groups of the i-th group in the single molecule
- ⁇ f i is the contribution value of the i-th group in the single molecule to the physical property
- a is the correlation constant
- the obtaining the number of groups of each group constituting the single molecule includes:
- a plurality of groups that exist at the same time and contribute to the same physical property are regarded as a multi-level group, and the number of the plurality of groups is regarded as the level of the multi-level group.
- the physical property calculation model determines the physical properties of single molecules in the following manner:
- each level of groups the product of the number of groups contained in each group and the contribution of each group to the physical properties is obtained, and then the sum of the corresponding products of the various groups is obtained as Contribution value of the group at this level to physical properties;
- the physical properties of the single molecule are obtained according to the sum of the contribution values of the various groups of the physical properties.
- the physical property calculation model is as follows:
- f is the physical properties of the single molecule
- m 1i is the number of groups of the i-th group in the primary group
- ⁇ f 1i is the contribution value of the i-th group in the primary group to the physical properties
- m 2j Is the number of groups of the jth group in the secondary group
- ⁇ f 2j is the contribution value of the jth group in the secondary group to the physical properties
- m Nl is the group of the lth group in the N-level group The number of groups, ⁇ f Nl is the contribution value of the first group in the N-level group to the physical properties
- a is the correlation constant
- N is a positive integer greater than or equal to 2.
- the physical properties of the single molecule preferably include: the boiling point of the single molecule;
- the calculation of the physical properties of the single molecule includes:
- T is the boiling point of the single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting the single molecule
- GROUP 11 is the value based on the contribution of the primary group to the boiling point
- the converted first contribution value vector GROUP 12 is the second contribution value vector converted according to the contribution value of the secondary group to the boiling point
- GROUP 1N is the second contribution value vector converted according to the contribution value of the N-level group to the boiling point N contribution value vector
- Numh is the number of atoms in a single molecule other than hydrogen atoms
- d is the first preset constant
- b is the second preset constant
- c is the third preset constant
- the N is greater than or equal to A positive integer of 2.
- the physical properties of the single molecule preferably include: the density of the single molecule;
- the physical property calculation model preferably determines the density of the single molecule in the following manner:
- a single molecule vector converted according to the number of groups of each group constituting the single molecule
- the density of the single molecule is obtained according to the proportion of the product of the single molecule vector and the contribution value vector of the primary group in the sum of the corresponding products of the single molecule vector and each level of the group.
- the density of the single molecule is calculated according to the following physical property calculation model:
- D is the density of the single molecule
- SOL is the single molecule vector converted according to the number of groups of each group constituting the single molecule
- GROUP 21 is the value according to the contribution of the primary group to the density
- the transformed N+1th contribution value vector GROUP 22 is the N+2th contribution value vector transformed according to the contribution value of the secondary group to the density
- GROUP 2N is the contribution value of the N-level group to the density In the transformed 2N contribution value vector
- e is the fourth preset constant; the N is a positive integer greater than or equal to 2.
- the physical properties of the single molecule preferably include: the octane number of the single molecule;
- the physical property calculation model preferably determines the octane number of a single molecule in the following manner:
- a single molecule vector converted according to the number of groups of each group constituting the single molecule
- a vector of the contribution value of the group of that level converted according to the contribution value of the group of each level to the octane number
- the octane number of the single molecule is obtained according to the sum of the products of the single molecule vector and the corresponding groups of each level.
- the octane number of the single molecule is calculated according to the following physical property calculation model:
- X is the octane number of the single molecule
- SOL is the single molecule vector converted according to the number of groups of each group constituting the single molecule
- GROUP 31 is the octane number of the first group
- GROUP 32 is the 2N+2 contribution value vector converted according to the contribution value of the secondary group to the octane number
- GROUP 3N is the contribution value vector according to the N level group to the octane
- the 3Nth contribution value vector obtained by transforming the contribution value of the value; the N is a positive integer greater than or equal to 2; h is the fifth preset constant.
- the product physical properties of the mixed product preferably include density, cloud point, pour point, aniline point and octane number.
- calculating the product physical property of each group of the mixed product preferably includes:
- the density of the group of mixed products is obtained.
- density is the density of the mixed product
- D i is the density of the i-th single molecule
- x i_volume is the second component content of the i-th single molecule
- calculating the product physical property of each group of the mixed product preferably includes:
- For each group of mixed products calculate the cloud point contribution value of each of the single molecules in the group of mixed products according to the density and boiling point of each of the single molecules in the group of mixed products;
- the cloud point of the group of mixed products is calculated.
- calculating the product physical property of each group of the mixed product preferably includes:
- For each group of mixed products calculate the pour point contribution value of each of the single molecules in the group of mixed products according to the density and molecular weight of each of the single molecules in the group of mixed products;
- the pour point of the group of mixed products is calculated.
- calculating the product physical property of each group of the mixed product preferably includes:
- the aniline point contribution value of the single molecule is calculated according to the density and boiling point of the single molecule in the group of mixed products;
- the aniline point of the group of mixed products is calculated.
- calculating the product physical properties of each group of the mixed products preferably includes:
- the octane number of the mixed product is calculated by the following formula:
- the ON is the octane number of the mixed product
- HISQFG is the molecular collection
- H is the molecular collection of normal alkanes
- I is the molecular collection of isoalkanes
- S is the molecular collection of cycloalkanes
- Q is the molecular collection of olefins.
- F is the molecular collection of aromatic hydrocarbons
- G is the molecular collection of oxygen-containing compounds
- ⁇ i is the content of each molecule in the mixed product
- ⁇ H , ⁇ I , ⁇ S , ⁇ Q , ⁇ F , ⁇ G is the total content of normal paraffins, the total content of isoparaffins, the total content of cycloalkanes, the total content of olefins, the total content of aromatic hydrocarbons and the total content of oxygen-containing compounds in the mixed product respectively
- ⁇ i regression parameters for each molecule of the mixing product ON i is the octane number of each molecule in the product mix
- C H represents the coefficient of normal paraffins to interact with other molecules
- C I represents isoparaffin The interaction coefficient with other molecules
- C S represents the interaction coefficient between cycloalkanes and other molecules
- C Q represents the interaction coefficient between olefins and other molecules
- C F represents the interaction coefficient between aromatic hydro
- the interaction coefficient of other molecules Represents the first constant coefficient between normal paraffin and isoparaffin, Represents the first constant coefficient between normal alkanes and cycloalkanes, Represents the first constant coefficient between normal alkanes and alkenes, Represents the first constant coefficient between normal alkanes and aromatic hydrocarbons, Represents the first constant coefficient between n-alkane and oxygen-containing compound, Represents the first constant coefficient between isoparaffin and cycloalkane, Represents the first constant coefficient between isoparaffin and olefin, Represents the first constant coefficient between isoparaffin and aromatic hydrocarbon, Represents the first constant coefficient between isoparaffin and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and olefin, Represents the first constant coefficient between cycloalkane and aromatic hydrocarbon, Represents the first constant coefficient between cycloalkane and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and oxygen-
- the step of training the product prediction model preferably includes:
- the product prediction model includes: a reaction rule set including multiple reaction rules and a reaction rate algorithm;
- the sample raw material information of the sample raw material preferably includes: the molecular composition of the sample raw material, the molecular content of each molecule in the sample raw material, the molecular composition of the actual product corresponding to the sample raw material, and the actual product The actual content of each molecule in.
- using the sample raw material information to train the reaction rule set preferably includes:
- the device output product includes: Describe the sample raw materials, intermediate products and predicted products
- calculating the first relative deviation according to the first molecular composition of the output product of the device and the second molecular composition of the actual product preferably includes:
- the second set is not a subset of the first set, acquiring a pre-stored relative deviation value that does not meet a preset condition as the first relative deviation value;
- the first relative deviation is calculated by the following method: according to the number of types of single molecules in the molecular composition of the predicted product that are not in the second set The proportion of the total number of single molecules in the molecular composition of the predicted product determines the first relative deviation.
- the first relative deviation is calculated by the following calculation formula:
- x 1 is the first relative deviation
- M is the first set
- M 1 is the set of single molecules in the molecular composition of the sample material
- M 2 is the single molecule in the molecular composition of the intermediate product consisting of a set of species
- M 3 of the second set, card represents the number of elements in a set.
- using the sample raw material information to train the reaction rate algorithm preferably includes:
- reaction rate algorithm respectively calculate the reaction rate of the reaction path corresponding to each molecule in the molecular composition of the sample raw material
- respectively calculating the reaction rate of the reaction path corresponding to each molecule in the molecular composition of the sample raw material preferably includes:
- reaction rate constant is determined based on the calculation method of transition state theory.
- reaction rate constant is determined according to the following calculation formula:
- k is the reaction rate constant
- k B is the Boltzmann constant
- h is the Planck constant
- R is the ideal gas constant
- E is the temperature value of the environment in which the reaction path is located
- exp is the natural constant as the base
- ⁇ S is the entropy change before and after the reaction corresponding to the reaction rule corresponding to the reaction path
- ⁇ E is the reaction energy barrier corresponding to the reaction rule corresponding to the reaction path
- P is the pressure value of the environment where the reaction path is located
- ⁇ is the pressure influence factor corresponding to the reaction rule corresponding to the reaction path.
- the molecular composition of the different fractions obtained by distillation of the obtained crude oil preferably includes:
- the types of the petroleum processing equipment include:
- Catalytic cracking unit delayed coking unit, residual oil hydrogenation unit, hydrocracking unit, diesel hydro-upgrading unit, diesel hydro-refining unit, gasoline hydro-refining unit, catalytic reforming unit and alkylation unit; among them,
- Each petroleum processing device corresponds to a set of reaction rules.
- an embodiment of the present invention provides a real-time optimization device for a molecular-level device, and the real-time optimization device includes:
- the first obtaining unit is used to obtain the molecular composition of crude oil
- the first processing unit is configured to obtain the molecular composition of different fractions obtained by distillation of the crude oil according to the physical properties of various single molecules in the molecular composition of the crude oil;
- the second processing unit is used to use the respective fractions as the raw material for petroleum processing according to the preset raw material ratio, and respectively input the pre-trained product prediction model corresponding to the petroleum processing device to obtain the corresponding prediction output by the product prediction model
- the predicted molecular composition of the product and the predicted molecular content of each single molecule in the predicted molecular composition are used to use the respective fractions as the raw material for petroleum processing according to the preset raw material ratio, and respectively input the pre-trained product prediction model corresponding to the petroleum processing device to obtain the corresponding prediction output by the product prediction model
- the second obtaining unit is used to obtain a preset standard set of a preset target product
- the third processing unit based on the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition, to determine whether the predicted product meets the target corresponding to the predicted product in the preset standard set
- the preset standard of the product if the predicted product does not meet any of the preset standards of the target product corresponding to the predicted product in the preset standard set, adjust the operating parameters in the product prediction model to renew Obtain the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition, until the predicted product meets the preset of the target product corresponding to the predicted product in the preset standard set standard.
- the device further includes:
- the flow control unit is used to obtain the input flow of the petroleum processing raw materials input to each of the petroleum processing devices; determine whether each of the input flows meets the preset input flow range of the corresponding petroleum processing device; if any If the input flow rate does not meet the preset input flow rate range of the corresponding petroleum processing device, the preset raw material ratio is adjusted, and the corresponding fractions are re-input as petroleum processing raw materials according to the adjusted preset raw material ratio.
- the product prediction model of the corresponding petroleum processing device until each input flow rate meets the preset input flow range of the corresponding petroleum processing device.
- the third processing unit is specifically configured to calculate the physical properties of each single molecule in the predicted molecular composition according to the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition; The predicted physical properties of each single molecule in the predicted molecular composition and the predicted molecular content of each single molecule in the predicted molecular composition, calculate the predicted physical properties of the predicted product; determine whether the predicted physical properties of each predicted product meet the preset The preset physical property limit interval of the corresponding target product in the standard set.
- the device further includes:
- the product blending unit is used to blend each of the predicted products as product blending raw materials according to a set of preset rules to obtain the molecular composition of multiple groups of mixed products and the content of each single molecule in the mixed product; According to the molecular composition of the mixed product and the content of each single molecule in the mixed product, the product physical properties of each group of the mixed product are calculated respectively.
- the third processing unit is specifically configured to determine whether the product physical properties of each group of the mixed products meet the preset product physical properties of the target mixed product obtained by blending the corresponding target products in the preset standard set;
- the target parameter meets the preset condition, determine that the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set, and output the preset raw material ratio and product prediction model Set with preset rules as the production and processing plan;
- the operating parameters in the product prediction model and the preset rules in the preset rule set are adjusted, and multiple sets of mixed products are re-obtained until each set of mixed products is The product properties meet the preset product properties, and all the target parameters in the mixed product meet the preset conditions.
- the third processing unit is specifically used to obtain the product price of each group of mixed products and the output of each group of mixed products; calculate the price of each group of mixed products according to the output of each group of mixed products and the product price of each group of mixed products Product benefit; accumulate the product benefits of each group of mixed products to obtain a cumulative benefit; obtain the raw material price of each group of the petroleum processing raw materials and the operating cost of each petroleum processing device; subtract the cumulative benefit from all petroleum processing
- the raw material prices of the raw materials and the operating costs of all petroleum processing equipment obtain comprehensive benefits; use the comprehensive benefits as the target parameter; determine whether the comprehensive benefits reach the maximum; if the comprehensive benefits reach the maximum, then It is determined that the target parameter meets the preset condition; if the comprehensive benefit does not reach the maximum value, it is determined that the target parameter does not meet the preset condition.
- the third processing unit is specifically configured to adjust the temperature of the environment in which the reaction path corresponding to the predicted product in the product prediction model is located; reacquire the predicted molecular composition and the predicted molecular composition of the predicted product according to the adjusted temperature The predicted molecule content of each single molecule in each group of the predicted products until the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set.
- the third processing unit is specifically configured to adjust the pressure of the environment in which the reaction path corresponding to the predicted product in the product prediction model is located; re-acquire the predicted molecular composition and the predicted molecular composition of the predicted product according to the adjusted pressure The predicted molecular content of each single molecule in the predicted product until the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set.
- the product blending unit is specifically used to obtain the first molecular composition of each group of the product blending raw materials and the first component content of each single molecule in each group of the product blending raw materials;
- the product blending unit is specifically used for obtaining the number of groups of each group constituting the single molecule for each single molecule, and obtaining the contribution value of each group to the physical properties;
- the number of groups of each group of the single molecule and the contribution value of each group to the physical properties are input to a pre-trained physical property calculation model to obtain the physical properties of the single molecule output by the physical property calculation model; wherein
- the physical property calculation model is used to calculate the physical properties of the single molecule based on the number of groups of each group contained in the single molecule and the contribution value of each group to the physical properties.
- the device further includes:
- the single-molecule physical property template matching unit is used to compare the number of groups of each group constituting the single-molecule with the molecular information of template single-molecules with known physical properties pre-stored in the database; the molecular information includes: The number of groups of each group constituting the template single molecule; judge whether there is the same template single molecule as the single molecule; if there is the same template single molecule as the single molecule, output the The physical properties of the template single molecule are taken as the physical properties of the single molecule; if the template single molecule that is the same as the single molecule does not exist, the product blending unit is used to perform the process that will constitute the single molecule.
- the number of groups and the contribution value of each of the groups to the physical properties are input to the steps of the pre-trained physical properties calculation model.
- the device further includes:
- the model training unit is used to construct a single-molecule physical property calculation model; to obtain the number of groups of each group constituting the sample single molecule; wherein the physical properties of the sample single molecule are known; The number of groups of each group is input into the physical property calculation model; the predicted physical property of the sample single molecule output by the physical property calculation model is obtained; if the deviation between the predicted physical property and the known physical property is less than the predicted physical property If a deviation threshold is set, it is determined that the physical property calculation model has converged, the contribution value of each group to the physical property is obtained in the converged physical property calculation model, and the contribution value of the group to the physical property is stored; If the deviation value between the predicted physical property and the known physical property is greater than or equal to the deviation threshold, the contribution value of each group in the physical property calculation model to the physical property is adjusted until the physical property calculation model Convergence.
- f is the physical property of the single molecule
- n i is the number of groups of the i-th group in the single molecule
- ⁇ f i is the contribution value of the i-th group in the single molecule to the physical property
- a is the correlation constant
- the model training unit is specifically used to determine the number of primary groups, the number of primary groups, the number of multilevel groups, and the number of groups of multilevel groups among all the groups of the single molecule; All groups constituting a single molecule are regarded as primary groups; multiple groups that exist at the same time and contribute to the same physical property are regarded as multilevel groups, and the number of the multiple groups is regarded as the multilevel group. The level of the group.
- model training unit is specifically used to establish the following physical property calculation model:
- f is the physical properties of the single molecule
- m 1i is the number of groups of the i-th group in the primary group
- ⁇ f 1i is the contribution value of the i-th group in the primary group to the physical properties
- m 2j Is the number of groups of the jth group in the secondary group
- ⁇ f 2j is the contribution value of the jth group in the secondary group to the physical properties
- m Nl is the group of the lth group in the N-level group The number of groups, ⁇ f Nl is the contribution value of the first group in the N-level group to the physical properties
- a is the correlation constant
- N is a positive integer greater than or equal to 2.
- the product blending unit is specifically used in all groups of the single molecule to determine the number of primary groups, the number of primary groups, the number of multilevel groups, and the number of groups of multilevel groups; will constitute All groups of a single molecule are regarded as primary groups; multiple groups that exist at the same time and contribute to the same physical property are regarded as multilevel groups, and the number of the multiple groups is regarded as the multilevel groups Level.
- the product blending unit is specifically used to calculate the boiling point of the single molecule according to the following physical property calculation model:
- T is the boiling point of the single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting the single molecule
- GROUP 11 is the value based on the contribution of the primary group to the boiling point
- the converted first contribution value vector GROUP 12 is the second contribution value vector converted according to the contribution value of the secondary group to the boiling point
- GROUP 1N is the second contribution value vector converted according to the contribution value of the N-level group to the boiling point N contribution value vector
- Numh is the number of atoms in a single molecule other than hydrogen atoms
- d is the first preset constant
- b is the second preset constant
- c is the third preset constant
- the N is greater than or equal to A positive integer of 2.
- the product blending unit is specifically used to calculate the density of the single molecule according to the following physical property calculation model:
- D is the density of the single molecule
- SOL is the single molecule vector converted according to the number of groups of each group constituting the single molecule
- GROUP 21 is the value according to the contribution of the primary group to the density
- the transformed N+1th contribution value vector GROUP 22 is the N+2th contribution value vector transformed according to the contribution value of the secondary group to the density
- GROUP 2N is the contribution value of the N-level group to the density In the transformed 2N contribution value vector
- e is the fourth preset constant; the N is a positive integer greater than or equal to 2.
- X is the octane number of the single molecule
- SOL is the single molecule vector converted according to the number of groups of each group constituting the single molecule
- GROUP 31 is the octane number of the first group
- GROUP 32 is the 2N+2 contribution value vector converted according to the contribution value of the secondary group to the octane number
- GROUP 3N is the contribution value vector according to the N level group to the octane
- the 3Nth contribution value vector obtained by transforming the contribution value of the value; the N is a positive integer greater than or equal to 2; h is the fifth preset constant.
- the product physical properties of the mixed product include density, cloud point, pour point, aniline point and octane number.
- density is the density of the mixed product
- D i is the density of the i-th single molecule
- x i_volume is the second component content of the i-th single molecule
- the product blending unit is specifically used to calculate the cloud point contribution value of each single molecule according to the density and boiling point of each single molecule in the group of mixed products for each group of mixed products; Set the cloud point contribution value of all the single molecules in the mixed product and the content of each single molecule to calculate the cloud point of the mixed product.
- the product blending unit is specifically configured to calculate the pour point contribution value of each single molecule according to the density and molecular weight of each single molecule in the group of mixed products for each group of mixed products; Group the pour point contribution value of all the single molecules in the mixed product and the content of each single molecule to calculate the pour point of the mixed product.
- the product blending unit is specifically used to calculate the aniline point contribution value of the single molecule according to the density and boiling point of the single molecule in the group of mixed products for each group of mixed products;
- the aniline point contribution value of all the single molecules and the content of each single molecule are calculated to calculate the aniline point of the mixed product.
- the product blending unit is specifically used to obtain the octane number of each single molecule and the content of each single molecule in the group of mixed products for each group of mixed products; the mixed product is calculated by the following formula The octane rating:
- the ON is the octane number of the mixed product
- HISQFG is the molecular collection
- H is the molecular collection of normal alkanes
- I is the molecular collection of isoalkanes
- S is the molecular collection of cycloalkanes
- Q is the molecular collection of olefins.
- F is the molecular collection of aromatic hydrocarbons
- G is the molecular collection of oxygen-containing compounds
- ⁇ i is the content of each molecule in the mixed product
- ⁇ H , ⁇ I , ⁇ S , ⁇ Q , ⁇ F , ⁇ G is the total content of normal paraffins, the total content of isoparaffins, the total content of cycloalkanes, the total content of olefins, the total content of aromatic hydrocarbons and the total content of oxygen-containing compounds in the mixed product respectively
- ⁇ i regression parameters for each molecule of the mixing product ON i is the octane number of each molecule in the product mix
- C H represents the coefficient of normal paraffins to interact with other molecules
- C I represents isoparaffin The interaction coefficient with other molecules
- C S represents the interaction coefficient between cycloalkanes and other molecules
- C Q represents the interaction coefficient between olefins and other molecules
- C F represents the interaction coefficient between aromatic hydro
- the interaction coefficient of other molecules Represents the first constant coefficient between normal paraffin and isoparaffin, Represents the first constant coefficient between normal alkanes and cycloalkanes, Represents the first constant coefficient between normal alkanes and alkenes, Represents the first constant coefficient between normal alkanes and aromatic hydrocarbons, Represents the first constant coefficient between n-alkane and oxygen-containing compound, Represents the first constant coefficient between isoparaffin and cycloalkane, Represents the first constant coefficient between isoparaffin and olefin, Represents the first constant coefficient between isoparaffin and aromatic hydrocarbon, Represents the first constant coefficient between isoparaffin and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and olefin, Represents the first constant coefficient between cycloalkane and aromatic hydrocarbon, Represents the first constant coefficient between cycloalkane and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and oxygen-
- the device further includes:
- the model training unit is used to establish a product prediction model; wherein the product prediction model includes: a reaction rule set including a variety of reaction rules and a reaction rate algorithm; acquiring sample raw material information of the sample raw material; using the sample raw material information, Train the reaction rule set, and fix the reaction rule set that has been trained; use the sample material information to train the reaction rate algorithm, and fix the reaction rate algorithm that has been trained to obtain the training completion The product prediction model.
- the product prediction model includes: a reaction rule set including a variety of reaction rules and a reaction rate algorithm; acquiring sample raw material information of the sample raw material; using the sample raw material information, Train the reaction rule set, and fix the reaction rule set that has been trained; use the sample material information to train the reaction rate algorithm, and fix the reaction rate algorithm that has been trained to obtain the training completion The product prediction model.
- the sample raw material information of the sample raw material includes: the molecular composition of the sample raw material, the molecular content of each molecule in the sample raw material, the molecular composition of the actual product corresponding to the sample raw material, and the molecular composition of the actual product The actual content of each molecule.
- the model training unit is specifically configured to process the molecular composition of the sample raw material according to a preset reaction rule set to obtain the reaction path corresponding to each molecule in the molecular composition of the sample raw material;
- the reaction path corresponding to each molecule in the molecular composition of the raw material obtains the first molecular composition of the device output product including the sample raw material, the intermediate product, and the predicted product;
- the device output product includes: the sample raw material, Intermediate products and predicted products; calculate the first relative deviation based on the first molecular composition of the output product of the device and the second molecular composition of the actual product; if the first relative deviation meets a preset condition, fix the Reaction rule set; if the first relative deviation does not meet the preset condition, adjust the reaction rule in the reaction rule set, and recalculate the first relative difference according to the adjusted reaction rule set until the The first relative deviation meets the preset condition.
- the model training unit is specifically used to obtain the types of single molecules in the first molecular composition to form a first set; to obtain the types of single molecules in the second molecular composition to form a second set; to determine the Whether the second set is a subset of the first set; if the second set is not a subset of the first set, obtain a pre-stored relative deviation value that does not meet the preset condition as the first relative Deviation value; if the second set is a subset of the first set, the first relative deviation is calculated by the following calculation formula:
- x 1 is the first relative deviation
- M is the first set
- M 1 is the set of single molecules in the molecular composition of the sample material
- M 2 is the single molecule in the molecular composition of the intermediate product consisting of a set of species
- M 3 of the second set, card represents the number of elements in a set.
- the model training unit is specifically configured to calculate the reaction rate of the reaction path corresponding to each molecule in the molecular composition of the sample material according to the reaction rate algorithm; according to the molecule of each molecule in the sample material The content and the reaction rate corresponding to the reaction path of the molecule are used to obtain the predicted content of each molecule in the predicted product corresponding to the sample raw material; according to the predicted content of each molecule in the predicted product and the predicted content of each molecule in the actual product The actual content of the molecule, the second relative deviation is calculated; if the second relative deviation meets the preset condition, the reaction rate algorithm is fixed; if the second relative deviation does not meet the preset condition, the reaction rate is adjusted For the parameters in the algorithm, the second relative deviation is recalculated according to the adjusted reaction rate algorithm until the second relative deviation meets the preset condition.
- model training unit is specifically configured to calculate the reaction rate of each reaction path according to the reaction rate constant in the reaction rate algorithm
- reaction rate constant is determined according to the following calculation formula:
- k is the reaction rate constant
- k B is the Boltzmann constant
- h is the Planck constant
- R is the ideal gas constant
- E is the temperature value of the environment in which the reaction path is located
- exp is the natural constant as the base
- ⁇ S is the entropy change before and after the reaction corresponding to the reaction rule corresponding to the reaction path
- ⁇ E is the reaction energy barrier corresponding to the reaction rule corresponding to the reaction path
- P is the pressure value of the environment where the reaction path is located
- ⁇ is the pressure influence factor corresponding to the reaction rule corresponding to the reaction path.
- the types of petroleum processing equipment include: catalytic cracking equipment, delayed coking equipment, residual oil hydrogenation equipment, hydrocracking equipment, diesel hydro-upgrading equipment, diesel hydro-refining equipment, gasoline hydro-refining equipment, and catalytic cracking equipment. Reforming unit and alkylation unit; among them, each type of petroleum processing unit corresponds to a set of reaction rules.
- the present invention provides a real-time optimization system for molecular-level devices.
- the real-time optimization system for molecular-level devices includes a processor and a memory; the processor is used to perform real-time optimization of molecular-level devices stored in the memory.
- the optimization program is used to realize the real-time optimization method of the molecular-level device described in the first aspect.
- the present invention provides a computer-readable storage medium that stores one or more programs, and the one or more programs can be executed by one or more processors to realize The method for real-time optimization of molecular-level devices described in the first aspect.
- the method provided by the embodiment of the present invention obtains the molecular composition of crude oil; obtains the molecular composition of different fractions obtained by distillation of the crude oil according to the physical properties of various single molecules in the molecular composition of the crude oil; according to a preset raw material ratio , Using the respective fractions as raw materials for petroleum processing, respectively input into the pre-trained product prediction model corresponding to the petroleum processing device to obtain the predicted molecular composition and the predicted molecular composition of the corresponding predicted product output by the product prediction model The predicted molecular content of each single molecule; obtaining a preset standard set of preset target products; judging whether the predicted product is based on the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition Meet the preset standard of the target product corresponding to the predicted product in the preset standard set; if the predicted product does not meet any preset standard of the target product corresponding to the predicted product in the preset standard set Standard, the operating parameters in the product prediction model
- FIG. 1 is a schematic flowchart of a method for real-time optimization of a molecular-level device according to an embodiment of the present invention.
- Fig. 2 is a schematic structural diagram of a real-time optimization device for a molecular-level device according to an embodiment of the present invention.
- FIG. 3 is a structural diagram of a real-time optimization system for a molecular-level device according to another embodiment of the present invention.
- the embodiment of the present invention provides a method for real-time optimization of a molecular-level device. As shown in FIG. 1, the method may include the following steps:
- the raw material molecular composition of the petroleum processing raw material that is, the information of various molecules (single molecules) included in the petroleum processing raw material.
- the raw material molecular composition of the petroleum processing raw material is a molecular composition based on SOL.
- the types of single molecules include, but are not limited to: alkenes, alkanes, cycloalkanes, and aromatic hydrocarbons.
- the types of petroleum processing equipment include:
- Catalytic cracking unit delayed coking unit, residual oil hydrogenation unit, hydrocracking unit, diesel hydro-upgrading unit, diesel hydro-refining unit, gasoline hydro-refining unit, catalytic reforming unit and alkylation unit; among them,
- Each petroleum processing device corresponds to a set of reaction rules.
- the preset standard set includes one or more preset standards, where the preset standards include, but are not limited to: the comprehensive benefits of the generated products, and the proportion of the generated amount of the predicted products in the mixed product , The predicted physical properties corresponding to the predicted product.
- the preset standards include, but are not limited to: the comprehensive benefits of the generated products, and the proportion of the generated amount of the predicted products in the mixed product , The predicted physical properties corresponding to the predicted product.
- the different preset standards will be described later and will not be repeated here.
- step S104 According to the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule, determine whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set. If it meets, step S105 is executed; if the predicted product does not meet any preset standard of the target product corresponding to the predicted product in the preset standard set, step S106 is executed.
- the operating parameters in the embodiment of the present invention include the temperature of the environment where the reaction path is located in the product prediction model, and the pressure of the environment where the reaction path is located in the product prediction model. The adjustment of the operating parameters will be described later, and will not be repeated here.
- the method further includes:
- the respective fraction products are used as the petroleum processing raw material according to the preset raw material ratio.
- the present invention can be detected by comprehensive two-dimensional gas chromatography, quadrupole gas chromatography-mass spectrometry, gas chromatography/field ionization-time-of-flight mass spectrometry, gas chromatography, near-infrared spectroscopy, nuclear magnetic resonance
- spectroscopy Raman spectroscopy, Fourier transform ion cyclotron resonance mass spectrometry, electrostatic field orbitrap mass spectrometry, and ion mobility mass spectrometry.
- other methods can also be used to determine the molecular composition of petroleum processing raw materials, such as ASTM D2425, SH/T 0606, and ASTM D8144-18.
- the above-mentioned molecular detection method can detect the structure of the molecule, and thus obtain the type of the molecule.
- the structure-oriented lumped molecular characterization method is the SOL molecular characterization method, which uses 24 structural incremental fragments to characterize the basis of complex hydrocarbon molecules. structure. Any petroleum molecule can be expressed by a set of specific structural incremental fragments.
- the SOL method is lumped on the molecular scale, reducing the number of molecules in the actual system from millions to thousands, greatly reducing the complexity of the simulation.
- This characterization method can not only express alkanes, cycloalkanes, up to complex aromatic structures containing 50-60 carbon atoms, but also express olefins or cycloalkenes as intermediate products or secondary reaction products. In addition, it also considers sulfur, nitrogen, Heteroatom compounds such as oxygen.
- the molecular composition of crude oil is the information of various molecules (single molecules) in the crude oil.
- the single molecules contained in the raw materials the types of single molecules, the volume and content of each single molecule, etc.
- the boiling point of each single molecule in the crude oil can be calculated separately, and the fraction distillation range can be determined based on the boiling point and content of each single molecule, and the crude oil can be distilled and cut according to the fraction distillation range to obtain multiple sets of fractions.
- the fraction distillation range can be determined based on the boiling point and content of each single molecule, and the crude oil can be distilled and cut according to the fraction distillation range to obtain multiple sets of fractions.
- the molecular composition of each group of fractions obtained after crude oil distillation can be known.
- the corresponding fractions are used as petroleum processing raw materials for secondary processing, where the preset raw material ratio is the proportion of each fraction input into different petroleum processing devices, and the product prediction model of each petroleum processing device is used. Combining the molecular composition of the fraction input to the petroleum processing unit, the molecular composition in the predicted product and the content of each single molecule in the predicted product are obtained.
- the distillate obtained by distillation of crude oil includes light oil and heavy oil.
- Light oil such as naphtha does not require secondary processing, while heavy oil Generally, different secondary processing is required to convert heavy oil products into light oil products to improve the properties of the oil products.
- the corresponding fractions are input to the petroleum processing unit according to the preset raw material ratio
- the preset raw material ratio includes: the type and amount of the distillate input to the petroleum processing device, and the fraction that does not require the secondary processing device is no longer in the preset raw material ratio.
- the product prediction model has been trained and optimized.
- the product prediction model can be used to obtain the petroleum processing raw materials after being input to the petroleum processing device, and adjust the reaction conditions in the petroleum processing device, such as conditions such as pressure, temperature, and space velocity.
- the reaction conditions in the petroleum processing device such as conditions such as pressure, temperature, and space velocity.
- the product situation under certain set conditions can be obtained.
- the method further includes:
- any of the input flow does not meet the preset input flow range of the corresponding petroleum processing device, adjust the preset raw material ratio, and re-use the corresponding fractions as petroleum according to the adjusted preset raw material ratio.
- the processing raw materials are respectively input into the product prediction model of the corresponding petroleum processing device; until each of the input flows meets the preset input flow range of the corresponding petroleum processing device;
- each input flow rate meets the preset input flow rate range of the corresponding petroleum processing device, execute the predicted molecular composition of the corresponding predicted product and the predicted molecular content of each single molecule in the predicted molecular composition A step of.
- the subsequent steps of the scheme are directly performed.
- each group of petroleum processing equipment has a corresponding processing capacity.
- the processing time of the raw materials in the petroleum processing equipment is too short and cannot be fully reacted. Bad conditions may cause damage to the petroleum processing device.
- a preset input flow range is set. The maximum value of the range can be 80 to 9 percent of the maximum processing capacity of the petroleum processing device. During the fifteenth period, by limiting the amount of raw materials entering the petroleum processing equipment, avoiding damage to the petroleum processing equipment.
- the preset raw material ratio is adjusted, and the amount of petroleum processing raw materials input to the petroleum processing device is re-planned, so that the raw material of each petroleum processing device The input flow rate is in line with the preset input flow range of the corresponding petroleum processing device.
- the judging whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set further includes:
- the predicted physical properties of the predicted product are calculated; the predicted physical properties of the predicted product include, but are not limited to: density, cloud point, pour point , Aniline point and octane number.
- the predicted physical property of each predicted product meets the preset physical property limit interval, it is determined that the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set, then execute The step of obtaining the predicted molecular composition of the corresponding predicted product and the predicted molecular content of each single molecule in the predicted molecular composition.
- the method further includes:
- Each of the predicted products is used as a product blending raw material for blending according to a set of preset rules to obtain the molecular composition of multiple sets of mixed products and the content of each single molecule in the mixed product;
- the product physical properties of each group of mixed products are calculated according to the molecular composition of each group of mixed products and the content of each single molecule.
- the predicted product input by each petroleum processing device is used as the product blending raw material for blending, wherein each set of preset rules in the preset rule set includes the type and quantity of the predicted product used, and
- the predicted products output by different petroleum processing devices are mixed to obtain corresponding mixed products, where the mixed products include, but are not limited to, gasoline products such as automotive oil, lubricating oil, hydraulic oil, gear oil, and cutting oil for vehicles.
- the production planning can be completed by blending the raw materials for the blending of various products, so that each blended product obtained meets the national standards of the corresponding product.
- the molecular composition of the predicted product and the content of each single molecule in the predicted product combined with a preset rule set, the molecular composition of different mixed products and the content of each single molecule in the mixed product are obtained.
- the judging whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set further includes:
- the target parameter meets the preset condition, determine that the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set, and output the preset raw material ratio and product prediction model Set with preset rules as the production and processing plan;
- the operating parameters in the product prediction model and the preset rules in the preset rule set are adjusted, and multiple sets of mixed products are re-obtained until each set of mixed products is The product properties meet the preset product properties, and all the target parameters in the mixed product meet the preset conditions.
- the product physical properties of each group of mixed products are calculated separately.
- the physical properties of each single molecule in the mixed product can be calculated by determining the various single molecules contained in each group of mixed products, that is, determining the molecular composition of the mixed product. , And then calculate the physical properties of the blended gasoline product based on the physical properties and content of each single molecule in the blended gasoline.
- the physical properties of a single molecule include, but are not limited to: density, boiling point, density, and octane number.
- the physical properties of a single molecule can also include: viscosity, solubility parameters, cetane number, degree of unsaturation, and so on.
- each mixed product blended at this time is a qualified product.
- the mixed product obtain the relevant target parameters and confirm whether the target parameters are Meet the preset conditions, where the target parameters can be the economic benefits of the product, the content of substances that are harmful to the environment in the product, and the proportion of products that meet a certain preset standard among all mixed products.
- the ultimate goal of the refinery's refining is to pursue benefits.
- a gross profit value can be calculated through the price of each mixed product and the quantity of the mixed product. The gross profit value can be used to confirm whether the final benefit has reached the maximum.
- Whether the target parameters meet the preset conditions and confirm whether the final benefit reaches the maximum can be calculated by random algorithms.
- the content of substances that are harmful to the environment in the mixed product will also affect the mixture.
- the calculated benefit value is large, it cannot be sold on the sales side and cannot be converted into benefit. Therefore, in order to increase the competitiveness of oil products, the content of substances harmful to the environment in the mixed product can be determined.
- the market will have different demand. For example, the price of gasoline for car No. 98 is higher than the price of gasoline for car No. 95, but the price of car gasoline for car No. 95 Gasoline consumption is greater.
- the refinery produces a large amount of gasoline for the 98th car, but the market will take longer to digest, resulting in a backlog of gasoline for the 98th car, resulting in more manpower and other aspects.
- the cost, resulting in the final benefit is not as good as the production of No. 95 motor gasoline, so in this step, the production of mixed products that meet a certain preset standard can be calculated as a proportion of all mixed products to avoid products Backlog.
- the judging whether the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set further includes:
- the comprehensive benefit is taken as the target parameter to ensure the production benefit, and it can be judged whether the comprehensive benefit reaches the maximum value through the global optimization algorithm of multi-start random search.
- the target parameters when the target parameters also meet the corresponding preset conditions, it means that the entire production process has met the various production requirements at this time, and sustainable production can be carried out.
- different fractions are input in the output plan.
- the product prediction model used to calculate the molecular composition of the predicted products produced by each petroleum processing device and the content of each single molecule, and the prediction of the output of the petroleum processing device
- the set of preset rules for product blending is used as a production and processing plan.
- the production and processing plan is used for production, and real-time optimization of the device is realized at the molecular level.
- the target parameters do not meet the preset conditions, it means that the economic benefits of the final blended product may not reach the maximum value, or the amount of substances that affect the environment in the blended product exceeds the set value. Or, the proportion of mixed products that meet a certain preset standard in the mixed products does not reach the set value.
- the operating parameters in the product prediction model and the preset rule set can be adjusted To obtain multiple sets of mixed products in another case, until the product properties of each set of mixed products output in this solution meet the preset product properties, and at the same time, the target parameters in all mixed products meet the preset conditions, that is Complete real-time optimization of molecular-level devices.
- the operating parameters include the temperature of the environment in which the reaction path in the product prediction model is located.
- adjusting the operating parameters in the product prediction model further includes:
- the operating parameters include the pressure of the environment in which the reaction path in the product prediction model is located, and the adjusting the operating parameters in the product prediction model further includes:
- the product properties of each group of mixed products are calculated according to the molecular composition of each group of mixed products and the content of each single molecule, including:
- the second molecular composition of each group of mixed products and the first component content of each single molecule are obtained.
- the second component content in this embodiment, the preset rules in the preset rule set set the type and quantity of the required product blending raw materials, through the molecular composition of the product blending raw materials and each single molecule
- the content of the first component obtains the second molecular composition of the mixed product and the content of the second component of each single molecule.
- the physical properties of each single molecule are calculated; in this example, for each single molecule , To obtain the number of groups of each group constituting a single molecule, and obtain the contribution value of each group to the physical properties; the number of groups of each group constituting the single molecule and the contribution value of each group to the physical properties , Input the pre-trained physical property calculation model to obtain the physical properties of the single molecule output by the physical property calculation model.
- blended gasoline products include: research octane number, motor octane number, Reid vapor pressure, Engler's distillation range, density, benzene volume fraction, aromatic hydrocarbon volume fraction, olefin volume fraction, oxygen content and sulfur content .
- Calculating the physical properties of a single molecule includes: for each single molecule, obtaining the number of groups of each group constituting the single molecule, and obtaining the contribution value of each of the groups to the physical properties;
- the number of groups of each group constituting the single molecule and the contribution value of each group to the physical properties are input into a pre-trained physical property calculation model to obtain the physical properties of the single molecule output by the physical property calculation model ;in,
- the physical property calculation model is used to calculate the physical properties of the single molecule according to the number of groups of each group contained in the single molecule and the contribution value of each group to the physical properties.
- the Methods before the number of groups of each group constituting the single molecule and the contribution value of each group to the physical properties are input into the pre-trained physical properties calculation model, the Methods also include:
- the group quantity of each group constituting the single molecule is compared with the molecular information of the template single molecule with known physical properties pre-stored in the database; the molecular information includes: each type of the template single molecule constituting the template single molecule The number of groups;
- the template single molecule is the same as the single molecule, output the physical properties of the template single molecule as the physical properties of the single molecule;
- the template single molecule that is the same as the single molecule does not exist, perform the number of groups of each group that will constitute the single molecule and the contribution value of each of the groups to the physical properties, and enter it in advance. The steps of training the physical property calculation model.
- the step of training the physical property calculation model includes:
- the physical property calculation model If the deviation value between the predicted physical property and the known physical property is less than the preset deviation threshold, it is determined that the physical property calculation model has converged, and each group pair is obtained from the converged physical property calculation model. The contribution value of the physical property, and the contribution value of the group to the physical property is stored;
- the contribution value of each group in the physical property calculation model to the physical property is adjusted until the physical property calculation model Convergence.
- the physical property calculation model includes: the contribution value of each group to the physical property.
- the contribution value is an adjustable value, and the contribution value is the initial value during the first training.
- the physical property calculation model includes: the contribution value of each group to each physical property.
- a training sample set is preset.
- the training sample set includes multiple samples of single-molecule information.
- the sample single molecule information includes, but is not limited to: the number of groups of each group constituting the sample single molecule, and the physical properties of the sample single molecule.
- the contribution value of each group to each physical property can be obtained in the converged physical property calculation model.
- the contribution value of the group to each physical property is stored, so that when the physical properties of a single molecule are subsequently calculated, the contribution value of each group in the single molecule to the physical properties that need to be known can be obtained, and
- the number of groups of each group of the single molecule and the contribution value of each group to the physical properties that need to be known are used as the input of the physical property calculation model.
- the physical property calculation model is the number of groups of each group of the single molecule
- the contribution value of each group to the physical property that needs to be known is used as a model parameter (instead of the adjustable contribution value of each group to the physical property in the physical property calculation model), the physical property that needs to be learned is calculated.
- the predicted physical properties of the sample single molecule output by the physical property calculation model will also be multiple. In this case, calculate the difference between each predicted physical property and the corresponding known physical property. Determine whether the deviation values between all predicted physical properties and the corresponding known physical properties are less than the preset deviation value. If yes, determine that the physical property calculation model has converged. According to the convergent physical property calculation model, you can obtain each The contribution value of each group corresponding to the physical properties, through the above scheme, the contribution value of each group to different physical properties can be obtained.
- f is the physical property of the single molecule
- n i is the number of groups of the i-th group in the single molecule
- ⁇ f i is the contribution value of the i-th group in the single molecule to the physical property
- a is the correlation constant
- the primary group and the multi-level group are determined among all the groups of a single molecule; among them, all the groups constituting the single molecule are regarded as primary groups; those that exist simultaneously and contribute to the same physical property.
- a variety of groups are regarded as multi-level groups, and the number of multiple groups is regarded as the level of multi-level groups.
- the contribution value will fluctuate to a certain extent.
- the way we divide the above-mentioned multi-level groups can also be divided by the chemical bond force between the groups according to the preset bond force interval. For different physical properties, different chemical bond forces will have different effects. The specific can be based on the stability of the molecule. The impact of physical properties is divided.
- the obtaining the number of groups of each group constituting the single molecule of the sample includes:
- a plurality of groups that exist at the same time and contribute to the same physical property are regarded as a multi-level group, and the number of the plurality of groups is regarded as the level of the multi-level group.
- Model 2 Based on the divided multi-level groups, the following physical property calculation models can be established:
- f is the physical properties of a single molecule
- m 1i is the number of groups of the i-th group in the primary group
- ⁇ f 1i is the contribution value of the i-th group in the primary group to the physical properties
- m 2j is two The number of groups in the j-th group in the second-level group
- ⁇ f 2j is the contribution value of the j-th group in the second-level group to the physical properties
- m Nl is the number of the first group in the N-level group
- ⁇ f Nl is the contribution value of the first group in the N-level group to the physical properties
- a is the correlation constant
- N is a positive integer greater than or equal to 2.
- the obtaining the number of groups of each group constituting the single molecule includes:
- a plurality of groups that exist at the same time and contribute to the same physical property are regarded as a multi-level group, and the number of the plurality of groups is regarded as the level of the multi-level group.
- physical property calculation models can also be constructed for each physical property according to different types of physical properties.
- T is the boiling point of a single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting a single molecule
- GROUP 1 is the first contribution converted according to the contribution value of the first-level group to the boiling point.
- Value vector GROUP 2 is the second contribution value vector converted according to the contribution value of the secondary group to the boiling point
- GROUP N is the Nth contribution value vector converted according to the contribution value of the N-level group to the boiling point
- Numh is the single The number of atoms in the molecule excluding hydrogen atoms
- d is the first predetermined constant
- b is the second predetermined constant
- c is the third predetermined constant
- N is a positive integer greater than or equal to 2.
- the single-molecule vector transformed according to the number of groups of each group constituting a single molecule includes: taking the number of types of all groups constituting a single molecule as the dimension of the single-molecule vector; taking the group of each group The quantity is used as the element value of the corresponding dimension in the single molecule vector.
- the first contribution value vector converted according to the contribution value of each primary group of a single molecule to the boiling point includes: taking the number of primary group types as the dimension of the first contribution value vector; The contribution value of the group to the boiling point is taken as the element value of the corresponding dimension in the first contribution value vector.
- the second contribution value vector converted according to the contribution value of each secondary group of a single molecule to the boiling point includes: taking the number of the type of secondary group as the dimension of the second contribution value vector; The contribution value of the group to the boiling point is taken as the element value of the corresponding dimension in the second contribution value vector.
- the Nth contribution value vector converted from the contribution of each N-level group of a single molecule to the boiling point includes: taking the number of N-level groups as the dimension of the Nth contribution value vector; The contribution value of each N-level group to the boiling point is taken as the element value of the corresponding dimension in the Nth contribution value vector.
- D is the density of a single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting a single molecule
- GROUP 21 is the N+th converted according to the contribution value of the first-level group to the density.
- 1 Contribution value vector GROUP 22 is the N+2th contribution value vector transformed according to the contribution value of the secondary group to the density
- GROUP 2N is the 2Nth contribution value vector transformed according to the N level group’s contribution to the density
- E is the fourth preset constant
- N is a positive integer greater than or equal to 2.
- the single-molecule vector transformed according to the number of groups of each group constituting a single molecule includes: taking the number of types of all groups constituting a single molecule as the dimension of the single-molecule vector; taking the group of each group The quantity is used as the element value of the corresponding dimension in the single molecule vector.
- the N+1th contribution value vector transformed according to the contribution value of each primary group of a single molecule to the density including: taking the number of primary groups as the dimension of the N+1th contribution value vector; The contribution value of each primary group to the density is taken as the element value of the corresponding dimension in the N+1th contribution value vector.
- the N+2th contribution value vector obtained by transforming the contribution value of each secondary group of a single molecule to the density respectively includes: taking the number of types of secondary groups as the dimension of the N+2th contribution value vector; The contribution value of each secondary group to the density is taken as the element value of the corresponding dimension in the N+2th contribution value vector.
- the 2N contribution value vector obtained by transforming the contribution value of each N-level group of a single molecule to the density respectively includes: taking the number of types of N-level groups as the dimension of the 2N contribution value vector; The contribution value of each N-level group to the density is taken as the element value of the corresponding dimension in the 2N-th contribution value vector.
- X is the octane number of a single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting a single molecule
- GROUP 31 is converted according to the contribution value of the primary group to the octane number
- the 2N+1 contribution value vector of the group GROUP 32 is the 2N+2 contribution value vector converted according to the contribution value of the secondary group to the octane number
- GROUP 3N is the contribution value of the N-level group to the octane number
- the single-molecule vector transformed according to the number of groups of each group constituting a single molecule includes: taking the number of types of all groups constituting a single molecule as the dimension of the single-molecule vector; taking the group of each group The quantity is used as the element value of the corresponding dimension in the single molecule vector.
- the 2N+1th contribution value vector transformed according to the contribution value of each primary group of a single molecule to the octane number including: taking the number of primary groups as the dimension of the 2N+1 contribution value vector ; The contribution value of each primary group to the octane number is taken as the element value of the corresponding dimension in the 2N+1 contribution value vector.
- the 2N+2 contribution value vector converted according to the contribution value of each secondary group of a single molecule to the octane number including: taking the number of secondary groups as the dimension of the 2N+2 contribution value vector ; The contribution value of each secondary group to the octane number is taken as the element value of the corresponding dimension in the 2N+2 contribution value vector.
- the 3N contribution value vector converted according to the contribution value of each N-level group of a single molecule to the octane number includes: taking the number of N-level groups as the dimension of the 3N contribution value vector ; Take the contribution value of each N-level group to the octane number as the element value of the corresponding dimension in the 3N contribution value vector.
- the single molecule is used as a template single molecule, and the number of groups and corresponding physical properties of each group constituting the single molecule are stored in the database.
- Product physical properties of mixed products including: research octane number, motor octane number, Reid vapor pressure, Engler's distillation range, density, benzene volume fraction, aromatic hydrocarbon volume fraction, olefin volume fraction, oxygen content, and sulfur content Fraction.
- density is the density of the mixed product
- D i is the density of the i-th single molecule
- x i_volume the content of the i-th single molecule
- Method 2 When the physical property of the mixture is the cloud point, calculate the physical property of the mixture, including:
- the cloud point of the mixture is calculated.
- Method 3 When the physical properties of the mixture are the pour point, the physical properties of the mixture are calculated, including:
- Method 4 When the physical property of the mixture is the aniline point, the physical property of the mixture is calculated, including:
- the ON is the octane number of the mixed product
- HISQFG is the molecular collection
- H is the molecular collection of normal alkanes
- I is the molecular collection of isoalkanes
- S is the molecular collection of cycloalkanes
- Q is the molecular collection of olefins.
- F is the molecular collection of aromatic hydrocarbons
- G is the molecular collection of oxygen-containing compounds
- ⁇ i is the content of each molecule in the mixed product
- ⁇ H , ⁇ I , ⁇ S , ⁇ Q , ⁇ F , ⁇ G is the total content of normal paraffins, the total content of isoparaffins, the total content of cycloalkanes, the total content of olefins, the total content of aromatic hydrocarbons and the total content of oxygen-containing compounds in the mixed product respectively
- ⁇ i regression parameters for each molecule of the mixing product ON i is the octane number of each molecule in the product mix
- C H represents the coefficient of normal paraffins to interact with other molecules
- C I represents isoparaffin The interaction coefficient with other molecules
- C S represents the interaction coefficient between cycloalkanes and other molecules
- C Q represents the interaction coefficient between olefins and other molecules
- C F represents the interaction coefficient between aromatic hydro
- the interaction coefficient of other molecules Represents the first constant coefficient between normal paraffin and isoparaffin, Represents the first constant coefficient between normal alkanes and cycloalkanes, Represents the first constant coefficient between normal alkanes and alkenes, Represents the first constant coefficient between normal alkanes and aromatic hydrocarbons, Represents the first constant coefficient between n-alkane and oxygen-containing compound, Represents the first constant coefficient between isoparaffin and cycloalkane, Represents the first constant coefficient between isoparaffin and olefin, Represents the first constant coefficient between isoparaffin and aromatic hydrocarbon, Represents the first constant coefficient between isoparaffin and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and olefin, Represents the first constant coefficient between cycloalkane and aromatic hydrocarbon, Represents the first constant coefficient between cycloalkane and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and oxygen-
- the product prediction model includes: a reaction rule set including multiple reaction rules and a reaction rate algorithm;
- a product prediction model is established corresponding to the type of petroleum processing device.
- the product prediction model corresponding to the petroleum processing device includes: a set of reaction rules and a reaction rate algorithm corresponding to the petroleum processing device.
- the reaction rule set includes: multiple reaction rules corresponding to the petroleum processing device.
- the sample raw material information of the sample raw material includes: the molecular composition of the sample raw material, the molecular content of each molecule in the sample raw material, the molecular composition of the actual product corresponding to the sample raw material, and the actual content of each molecule in the actual product.
- the actual product refers to the product obtained after the sample raw material is processed by the petroleum processing device.
- the molecular composition of the sample material is processed according to a preset reaction rule set to obtain the reaction path corresponding to each molecule in the molecular composition of the sample material; when the reaction path is calculated for the first time, the molecular composition of the sample material is calculated according to the preset
- the set of reaction rules are set for processing, and the reaction path corresponding to each molecule in the molecular composition of the sample material is obtained.
- Each molecule in the sample material is reacted according to the reaction rule in the reaction rule set, and the reaction path corresponding to each molecule is obtained.
- the device output product includes: Describe the sample raw materials, intermediate products and predicted products
- calculating the first relative deviation includes:
- the second set is not a subset of the first set, acquiring a pre-stored relative deviation value that does not meet a preset condition as the first relative deviation value;
- the first relative deviation is calculated by the following calculation formula:
- x 1 is the first relative deviation
- M is the first set
- M 1 is the set of single molecules in the molecular composition of the sample material
- M 2 is the single molecule in the molecular composition of the intermediate product consisting of a set of species
- M 3 of the second set, card represents the number of elements in a set.
- reaction rate algorithm respectively calculate the reaction rate of the reaction path corresponding to each molecule in the molecular composition of the sample raw material
- reaction rate of each reaction path is calculated according to the reaction rate constant in the reaction rate algorithm
- k is the reaction rate constant
- k B is the Boltzmann constant
- h is the Planck constant
- R is the ideal gas constant
- E is the temperature value of the environment where the reaction path is located
- exp is the exponent based on the natural constant Function
- ⁇ S is the entropy change before and after the reaction corresponding to the reaction rule corresponding to the reaction path
- ⁇ E is the reaction energy barrier corresponding to the reaction rule corresponding to the reaction path
- P is the pressure value of the environment where the reaction path is located
- ⁇ is the pressure influence factor corresponding to the reaction rule corresponding to the reaction path.
- the reaction rate of the reaction path is obtained according to the reaction rate constant and the reaction concentration corresponding to the reaction path.
- the reaction rate constant has been determined, the greater the space velocity, the shorter the contact time between the raw material and the catalyst, the shorter the reaction time of the raw material, the higher the concentration of reactants in the raw material, the higher the reaction rate of the reaction path.
- the smaller the space velocity the longer the contact time between the raw material and the catalyst, the longer the reaction time of the raw material, the lower the concentration of reactants in the raw material, and the lower the reaction rate of the reaction path.
- the reaction rate corresponding to each reaction path is calculated by the reaction rate calculation method in the product prediction model, and combined with the single molecule content of each single molecule in the raw material, each single molecule in the predicted product can be calculated
- the single molecule A in the raw material assumes that the single molecule A corresponds to 3 reaction paths.
- the reaction rate corresponding to the 3 reaction paths is known.
- the concentration of single molecule A decreases.
- the reaction rate corresponding to the three reaction paths will decrease according to the decrease ratio of the concentration, so single molecule A will generate products in proportion to the reaction rate of the three paths.
- the formation of each molecule can be obtained.
- obtain the predicted product When the single molecule content of each single molecule in the catalytic reforming feed is known, the content of each single molecule in the predicted product can be obtained.
- the calculation of the second relative deviation is, for example:
- the second relative deviation (actual content-predicted content) ⁇ actual content.
- the method provided by the embodiment of the present invention obtains the molecular composition of crude oil; obtains the molecular composition of different fractions obtained by distillation of the crude oil according to the physical properties of various single molecules in the molecular composition of the crude oil; according to a preset raw material ratio , Using the respective fractions as raw materials for petroleum processing, respectively input into the pre-trained product prediction model corresponding to the petroleum processing device to obtain the predicted molecular composition and the predicted molecular composition of the corresponding predicted product output by the product prediction model The predicted molecular content of each single molecule; obtaining the preset standard set of preset target products; judging whether the predicted product is based on the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition Meet the preset standard of the target product corresponding to the predicted product in the preset standard set; if the predicted product does not meet any preset standard of the target product corresponding to the predicted product in the preset standard set Standard, the operating parameters in the product prediction model are
- the embodiment of the present invention also provides a real-time optimization device for a molecular-level device.
- FIG. 2 it is a structural diagram of the real-time optimization device for a molecular-level device according to an embodiment of the present invention.
- the real-time optimization device includes: a first acquisition unit 11, a first processing unit 12, a second processing unit 13, a second acquisition unit 14, and a third processing unit 15.
- the first processing unit 12 is used to obtain the molecular composition of different fractions obtained by distillation of the crude oil according to the physical properties of various single molecules in the molecular composition of the crude oil.
- the second processing unit 13 is configured to use the corresponding fractions as the petroleum processing raw materials according to the preset raw material ratio, and input the pre-trained product prediction models corresponding to the petroleum processing equipment to obtain the product prediction models.
- the predicted molecular composition of the corresponding predicted product and the predicted molecular content of each single molecule in the predicted molecular composition are output.
- the second obtaining unit 14 is configured to obtain a preset standard set of a preset target product.
- the third processing unit 15 judges whether the predicted product meets the target product corresponding to the predicted product in the preset standard set based on the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition If the predicted product does not meet any of the preset standards of the target product corresponding to the predicted product in the preset standard set, adjust the operating parameters in the product prediction model to retrieve the predicted molecular composition and prediction of the predicted product The predicted molecular content of each single molecule in the molecular composition until the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set.
- the device further includes: a flow control unit.
- the flow control unit is used to obtain the input flow of the petroleum processing raw materials input to each petroleum processing device; determine whether each input flow meets the preset input flow range of the corresponding petroleum processing device; if any input flow does not meet the corresponding petroleum For the preset input flow range of the processing device, adjust the preset raw material ratio, and re-input the corresponding fractions as the petroleum processing raw material into the product prediction model of the corresponding petroleum processing device according to the adjusted preset raw material ratio; until each input The flow is in line with the preset input flow range of the corresponding petroleum processing device.
- the third processing unit 15 is specifically configured to calculate the physical properties of each single molecule in the predicted molecular composition according to the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule in the predicted molecular composition; The physical properties of each single molecule in the composition and the predicted molecular content of each single molecule in the predicted molecular composition are calculated to calculate the predicted physical properties of the predicted product; to determine whether the predicted physical property of each predicted product meets the prediction of the corresponding target product in the preset standard set Set physical property limit interval.
- the device further includes: a product blending unit.
- the product blending unit is used to blend each predicted product as a product blending raw material according to a set of preset rules to obtain the molecular composition of multiple groups of mixed products and the content of each single molecule in the mixed product; according to the content of each group of mixed products The molecular composition and the content of each single molecule in the mixed product are used to calculate the product properties of each group of mixed products.
- the third processing unit 15 is specifically configured to determine whether the product physical properties of each group of mixed products meet the preset product physical properties of the target mixed product obtained by blending the corresponding target products in the preset standard set; if it meets If the product properties are preset, the target parameters are obtained based on all mixed products to determine whether the target parameters meet the preset conditions; if the target parameters meet the preset conditions, it is determined that the predicted product meets the prediction of the target product corresponding to the predicted product in the preset standard set.
- the third processing unit 15 is specifically configured to obtain the product price of each group of mixed products and the output of each group of mixed products; according to the output of each group of mixed products and the product price of each group of mixed products, calculate each group Product benefits of mixed products; accumulate the product benefits of each group of mixed products to obtain cumulative benefits; obtain the raw material price of each group of petroleum processing raw materials and the operating cost of each petroleum processing device; subtract the cumulative benefits of all petroleum processing raw materials from the raw materials The price and the operating cost of all petroleum processing equipment to obtain comprehensive benefits; take the comprehensive benefits as the target parameter; judge whether the comprehensive benefit reaches the maximum value; if the comprehensive benefit reaches the maximum value, determine that the target parameter meets the preset conditions; if the comprehensive benefit does not reach the maximum value Maximum value, it is determined that the target parameter does not meet the preset conditions.
- the third processing unit 15 is specifically configured to adjust the temperature of the environment in which the reaction path corresponding to the predicted product in the product prediction model is located; re-acquire the predicted molecular composition of the predicted product and each group of predictions according to the adjusted temperature The predicted molecular content of each single molecule in the product until the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set.
- the third processing unit 15 is specifically configured to adjust the pressure of the environment in which the reaction path corresponding to the predicted product in the product prediction model is located; re-obtain the predicted molecular composition of the predicted product and the predicted product based on the adjusted pressure The predicted molecular content of each single molecule until the predicted product meets the preset standard of the target product corresponding to the predicted product in the preset standard set.
- the product blending unit is specifically used to obtain the first molecular composition of each group of product blending raw materials and the first component content of each single molecule in each group of product blending raw materials; set according to preset rules , According to the first molecular composition of each group of product blending raw materials and the first component content of each single molecule in each group of product blending raw materials, the second molecular composition of each group of mixed products and each group of mixed products are obtained
- the content of the second component of a single molecule according to the number of groups of each group contained in each single molecule in each group of mixed products and the contribution value of each group to the physical properties, calculate each single molecule in each group of mixed products
- the physical properties of each group of mixed products calculate the physical properties of each group of mixed products based on the physical properties of each single molecule in each group of mixed products and the content of the second component.
- the product blending unit is specifically used to obtain the number of groups of each group constituting the single molecule and the contribution value of each group to the physical properties for each single molecule; it will constitute a single molecule
- the number of groups of each group and the contribution value of each group to the physical properties are input into the pre-trained physical property calculation model to obtain the physical properties of the single molecule output by the physical property calculation model; among them, the physical property calculation model is used to calculate the physical properties of the single molecule Calculate the physical properties of a single molecule by including the number of groups of each group and the contribution value of each group to the physical properties.
- the device further includes:
- the single-molecule physical property template matching unit is used to compare the group quantity of each group constituting the single molecule with the molecular information of the template single-molecule with known physical properties pre-stored in the database; the molecular information includes: the single-molecule constituting the template The number of groups for each group; determine whether there is a template single molecule that is the same as a single molecule; if there is a template single molecule that is the same as a single molecule, output the physical properties of the template single molecule as the physical properties of the single molecule; For template single molecules with the same molecule, the product blending unit performs the step of inputting the number of groups of each group constituting the single molecule and the contribution value of each group to the physical properties into a pre-trained physical property calculation model.
- the device further includes: a model training unit.
- the model training unit is used to construct the physical property calculation model of the single molecule; obtain the group quantity of each group constituting the sample single molecule; among them, the physical properties of the sample single molecule are known; The number of groups is input to the physical property calculation model; the predicted physical property of the sample single molecule output from the physical property calculation model is obtained; if the deviation between the predicted physical property and the known physical property is less than the preset deviation threshold, it is determined that the physical property calculation model has converged.
- model training unit is specifically used to establish the following physical property calculation model:
- f is the physical properties of a single molecule
- n i is the number of groups of the i-th group in the single molecule
- ⁇ f i is the contribution value of the i-th group in the single molecule to the physical properties
- a is the correlation constant
- the model training unit is specifically used to determine the number of primary groups, the number of primary groups, the number of multilevel groups, and the number of groups of multilevel groups among all groups in a single molecule; Regard all groups constituting a single molecule as primary groups; multiple groups that exist at the same time and contribute to the same physical property as multi-level groups, and the number of multiple groups as the level of multi-level groups .
- model training unit is specifically used to establish the following physical property calculation model:
- f is the physical properties of a single molecule
- m 1i is the number of groups of the i-th group in the primary group
- ⁇ f 1i is the contribution value of the i-th group in the primary group to the physical properties
- m 2j is two The number of groups in the j-th group in the second-level group
- ⁇ f 2j is the contribution value of the j-th group in the second-level group to the physical properties
- m Nl is the number of the first group in the N-level group
- ⁇ f Nl is the contribution value of the first group in the N-level group to the physical properties
- a is the correlation constant
- N is a positive integer greater than or equal to 2.
- the product blending unit is specifically used in all groups of a single molecule to determine the number of primary groups, the number of primary groups, the number of multi-level groups, and the number of multi-level groups; Regard all groups constituting a single molecule as primary groups; multiple groups that exist at the same time and contribute to the same physical property as multi-level groups, and the number of multiple groups as the level of multi-level groups .
- the product blending unit is specifically used to calculate the boiling point of a single molecule according to the following physical property calculation model:
- T is the boiling point of a single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting a single molecule
- GROUP 11 is the first contribution converted according to the contribution value of the first-level group to the boiling point.
- Value vector GROUP 12 is the second contribution value vector converted according to the contribution value of the secondary group to the boiling point
- GROUP 1N is the Nth contribution value vector converted according to the contribution value of the N-level group to the boiling point
- Numh is the single The number of atoms in the molecule excluding hydrogen atoms
- d is the first predetermined constant
- b is the second predetermined constant
- c is the third predetermined constant
- N is a positive integer greater than or equal to 2.
- the product blending unit is specifically used to calculate the density of a single molecule according to the following physical property calculation model:
- D is the density of a single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting a single molecule
- GROUP 21 is the N+th converted according to the contribution value of the first-level group to the density.
- 1 Contribution value vector GROUP 22 is the N+2th contribution value vector transformed according to the contribution value of the secondary group to the density
- GROUP 2N is the 2Nth contribution value vector transformed according to the N level group’s contribution to the density
- E is the fourth preset constant
- N is a positive integer greater than or equal to 2.
- X is the octane number of a single molecule
- SOL is a single molecule vector converted according to the number of groups of each group constituting a single molecule
- GROUP 31 is converted according to the contribution value of the primary group to the octane number
- the 2N+1 contribution value vector of the group GROUP 32 is the 2N+2 contribution value vector converted according to the contribution value of the secondary group to the octane number
- GROUP 3N is the contribution value of the N-level group to the octane number
- the product physical properties of the mixed product include density, cloud point, pour point, aniline point, and octane number, and of course other product physical properties. This solution will not be repeated here.
- density is the density of the mixed product
- D i is the density of the i-th single molecule
- x i_volume component content is the i-th single molecule
- the product blending unit is specifically used to calculate the cloud point contribution value of each single molecule for each group of mixed products according to the density and boiling point of each single molecule in the group of mixed products;
- the cloud point contribution value of all single molecules in the product and the content of each single molecule are used to calculate the cloud point of the group of mixed products.
- the product blending unit is specifically used to calculate the pour point contribution value of each single molecule according to the density and molecular weight of each single molecule in the group of mixed products for each group of mixed products;
- the pour point contribution value of all single molecules in the product and the content of each single molecule are used to calculate the pour point of the group of mixed products.
- the product blending unit is specifically used to calculate the aniline point contribution value of the single molecule according to the density and boiling point of the single molecule in the group of mixed products for each group of mixed products; according to all the single molecules in the group of mixed products The aniline point contribution value of the molecule and the content of each single molecule are calculated to calculate the aniline point of the mixed product.
- the product blending unit is specifically used to obtain, for each group of mixed products, the octane number of each single molecule and the content of each single molecule in the group of mixed products; the following calculation formula is used to calculate the mixed product's octane number Octane number:
- the ON is the octane number of the mixed product
- HISQFG is the molecular collection
- H is the molecular collection of normal alkanes
- I is the molecular collection of isoalkanes
- S is the molecular collection of cycloalkanes
- Q is the molecular collection of olefins.
- F is the molecular collection of aromatic hydrocarbons
- G is the molecular collection of oxygen-containing compounds
- ⁇ i is the content of each molecule in the mixed product
- ⁇ H , ⁇ I , ⁇ S , ⁇ Q , ⁇ F , ⁇ G is the total content of normal paraffins, the total content of isoparaffins, the total content of cycloalkanes, the total content of olefins, the total content of aromatic hydrocarbons and the total content of oxygen-containing compounds in the mixed product respectively
- ⁇ i regression parameters for each molecule of the mixing product ON i is the octane number of each molecule in the product mix
- C H represents the coefficient of normal paraffins to interact with other molecules
- C I represents isoparaffin The interaction coefficient with other molecules
- C S represents the interaction coefficient between cycloalkanes and other molecules
- C Q represents the interaction coefficient between olefins and other molecules
- C F represents the interaction coefficient between aromatic hydro
- the interaction coefficient of other molecules Represents the first constant coefficient between normal paraffin and isoparaffin, Represents the first constant coefficient between normal alkanes and cycloalkanes, Represents the first constant coefficient between normal alkanes and alkenes, Represents the first constant coefficient between normal alkanes and aromatic hydrocarbons, Represents the first constant coefficient between n-alkane and oxygen-containing compound, Represents the first constant coefficient between isoparaffin and cycloalkane, Represents the first constant coefficient between isoparaffin and olefin, Represents the first constant coefficient between isoparaffin and aromatic hydrocarbon, Represents the first constant coefficient between isoparaffin and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and olefin, Represents the first constant coefficient between cycloalkane and aromatic hydrocarbon, Represents the first constant coefficient between cycloalkane and oxygen-containing compound, Represents the first constant coefficient between cycloalkane and oxygen-
- the device further includes: a model training unit.
- the model training unit is used to establish a product prediction model;
- the product prediction model includes: a reaction rule set including multiple reaction rules and a reaction rate algorithm; obtain sample raw material information of the sample raw material; use the sample raw material information to set the reaction rule Perform training and fix the set of reaction rules that have been trained; use sample material information to train the reaction rate algorithm, and fix the trained reaction rate algorithm to obtain the trained product prediction model.
- the sample raw material information of the sample raw material includes: the molecular composition of the sample raw material, the molecular content of each molecule in the sample raw material, the molecular composition of the actual product corresponding to the sample raw material, and the actual content of each molecule in the actual product .
- the model training unit is specifically used to process the molecular composition of the sample material according to a preset reaction rule set to obtain the reaction path corresponding to each molecule in the molecular composition of the sample material; according to the molecular composition of the sample material In the reaction path corresponding to each molecule in the sample, the first molecular composition of the device output product containing the sample material, intermediate product, and predicted product is obtained; the device output product includes: sample material, intermediate product, and predicted product; according to the device output product Calculate the first relative deviation between the first molecular composition and the second molecular composition of the actual product; if the first relative deviation meets the preset conditions, the reaction rule set is fixed; if the first relative deviation does not meet the preset conditions, the reaction is adjusted According to the reaction rule in the rule set, the first relative difference is recalculated according to the adjusted reaction rule set until the first relative deviation meets the preset condition.
- the model training unit is specifically used to obtain the types of single molecules in the first molecular composition to form the first set; to obtain the types of single molecules in the second molecular composition to form the second set; to determine whether the second set is Is a subset of the first set; if the second set is not a subset of the first set, obtain the pre-stored relative deviation value that does not meet the preset conditions as the first relative deviation value; if the second set is the first set For a subset, the first relative deviation is calculated by the following calculation formula:
- x 1 is the first relative deviation
- M is the first set
- M 1 is the set of single molecules in the molecular composition of the sample material
- M 2 is the set of single molecules in the molecular composition of the intermediate product
- M 3 For the second set, card represents the number of elements in the set.
- the model training unit is specifically used to calculate the reaction rate of the reaction path corresponding to each molecule in the molecular composition of the sample material according to the reaction rate algorithm; according to the molecular content and molecular weight of each molecule in the sample material According to the reaction rate corresponding to the reaction path, the predicted content of each molecule in the predicted product corresponding to the sample raw material is obtained; the second relative deviation is calculated based on the predicted content of each molecule in the predicted product and the actual content of each molecule in the actual product; if If the second relative deviation meets the preset conditions, the reaction rate algorithm is fixed; if the second relative deviation does not meet the preset conditions, adjust the parameters in the reaction rate algorithm, and recalculate the second relative deviation according to the adjusted reaction rate algorithm. Until the second relative deviation meets the preset conditions.
- model training unit is specifically used to calculate the reaction rate of each reaction path according to the reaction rate constant in the reaction rate algorithm
- reaction rate constant is determined according to the following calculation formula:
- k is the reaction rate constant
- k B is the Boltzmann constant
- h is the Planck constant
- R is the ideal gas constant
- E is the temperature value of the environment where the reaction path is located
- exp is the exponent based on the natural constant Function
- ⁇ S is the entropy change before and after the reaction corresponding to the reaction rule corresponding to the reaction path
- ⁇ E is the reaction energy barrier corresponding to the reaction rule corresponding to the reaction path
- P is the pressure value of the environment where the reaction path is located
- ⁇ is the pressure influence factor corresponding to the reaction rule corresponding to the reaction path.
- the types of petroleum processing equipment include: catalytic cracking equipment, delayed coking equipment, residual oil hydrogenation equipment, hydrocracking equipment, diesel hydro-upgrading equipment, diesel hydro-refining equipment, gasoline hydro-refining equipment , Catalytic reforming unit and alkylation unit; among them, each petroleum processing unit corresponds to a set of reaction rules.
- the embodiment of the present invention also provides a real-time optimization system for a molecular-level device.
- FIG. 3 it is a structural diagram of the real-time optimization system for a molecular-level device according to an embodiment of the present invention.
- the real-time optimization system of the molecular-level device includes a processor 210 and a memory 211; the processor 210 is used to execute the real-time optimization program of the molecular-level device stored in the memory 211 to realize each
- the method for real-time optimization of a molecular-level device described in the method embodiment includes, for example, the following steps:
- the corresponding fractions are processed as petroleum
- the raw materials are respectively input to the pre-trained product prediction model corresponding to the petroleum processing device to obtain the predicted molecular composition of the corresponding predicted product output by the product prediction model and the predicted molecular content of each single molecule in the predicted molecular composition;
- the preset standard of the target product corresponding to the predicted product if the predicted product does not meet any preset standard of the target product corresponding to the predicted product in the preset standard set, adjust the product prediction model To re-acquire the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule until the predicted product meets the predicted product of the target product corresponding to the predicted product in the preset standard set. Set standards.
- the embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores one or more programs, where the storage medium may include a volatile memory, such as a random access memory; the memory is also It may include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid-state memory; the memory may also include a combination of the foregoing types of memories.
- a volatile memory such as a random access memory
- non-volatile memory such as read-only memory, flash memory, hard disk, or solid-state memory
- the memory may also include a combination of the foregoing types of memories.
- the method includes the following steps:
- the corresponding fractions are processed as petroleum
- the raw materials are respectively input to the pre-trained product prediction model corresponding to the petroleum processing device to obtain the predicted molecular composition of the corresponding predicted product output by the product prediction model and the predicted molecular content of each single molecule in the predicted molecular composition;
- the preset standard of the target product corresponding to the predicted product if the predicted product does not meet any preset standard of the target product corresponding to the predicted product in the preset standard set, adjust the product prediction model To re-acquire the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule until the predicted product meets the predicted product of the target product corresponding to the predicted product in the preset standard set. Set standards.
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Abstract
Description
Claims (66)
- 一种分子级装置的实时优化方法,其特征在于,所述方法包括:获取原油的分子组成;根据所述原油的分子组成中各种单分子的物性,获取所述原油进行蒸馏得到的不同馏分的分子组成;按预设原料比例,将相应的各个馏分作为石油加工原料,分别输入预先训练的与石油加工装置对应的产物预测模型,以得到所述产物预测模型输出的相应的预测产物的预测分子组成和所述预测分子组成中每种单分子的预测分子含量;获取预先设置的目标产物的预设标准集合;根据所述预测产物的预测分子组成和预测分子组成中每种单分子的预测分子含量,判断所述预测产物是否符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准;如果所述预测产物不符合所述预设标准集合中与所述预测产物对应的目标产物的任一预设标准,则调整所述产物预测模型中的操作参数,以重新获取所述预测产物的预测分子组成和所述预测分子组成中每种单分子的预测分子含量,直至所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:获取输入每个所述石油加工装置的石油加工原料的输入流量;判断每个所述输入流量是否均符合相应所述石油加工装置的预设输入流量范围;若存在任一所述输入流量不符合相应所述石油加工装置的预设输入流量范围,则调整所述预设原料比例,按调整后的所述预设原料比例重新将相应的各个馏分作为石油加工原料分别输入相应的石油加工装置的产物预测模型;直至每个所述输入流量均符合相应所述石油加工装置的预设输入流量范围。
- 根据权利要求1所述的方法,其特征在于,所述判断所述预测产物是否符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准,包括:根据所述预测产物的预测分子组成和预测分子组成中每种单分子的预测分子含量计算所述预测分子组成中每种单分子的物性;根据所述预测分子组成中每种单分子的物性和预测分子组成中每种单分子的预测分子含量,计算所述预测产物的预测物性;判断每个所述预测产物的预测物性是否符合所述预设标准集合中对应的目标产物的预设物性限制区间。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:将各个所述预测产物作为产品调合原料按预设规则集合进行调合,得到多组混合产品的分子组成和混合产品中每种单分子的含量;根据每组所述混合产品的分子组成和混合产品中每种单分子的含量分别计算每组所述混合产品的产品物性。
- 根据权利要求4所述的方法,其特征在于,所述判断所述预测产物是否符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准,包括:判断每组所述混合产品的产品物性是否符合所述预设标准集合中对应的各个目标产物调合得到的目标混合产品的预设产品物性;若符合预设产品物性,则根据所有所述混合产品获取目标参数,判断所述目标参数是否符合预设条件;若所述目标参数符合预设条件,则确定所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准,并输出所述预设原料比例、产物预测模型和预设规则集合作为生产加工方案;若所述目标参数不符合预设条件,则调整所述产物预测模型中的操作参数和所述预设规则集合中的预设规则,重新得到多组混合产品,直至每组所述混合产品的产品物性符合预设产品物性,且所有所述混合产品中的目标参数符合预设条件。
- 根据权利要求5所述的方法,其特征在于,所述根据所有所述混合产品获取目标参数,判断所述目标参数是否符合预设条件,包括:获取每组混合产品的产品价格和每组混合产品的产量;根据每组混合产品的产量和每组混合产品的产品价格,计算每组混合产品的产品效益;对每组混合产品的产品效益进行累加得到累计效益;获取每组所述石油加工原料的原料价格和每个所述石油加工装置的操作成本;将所述累计效益减去所有石油加工原料的所述原料价格和所有石油加工装置的操作成本,得到综合效益;将所述综合效益作为所述目标参数;判断所述综合效益是否达到最大值;若所述综合效益达到最大值,则确定所述目标参数符合预设条件;若所述综合效益未达到最大值,则确定所述目标参数不符合预设条件。
- 根据权利要求1所述的方法,其特征在于,所述操作参数包括所述产物预测模型 中反应路径所处环境的温度;所述调整所述产物预测模型中的操作参数,包括:调整所述产物预测模型中与所述预测产物对应的反应路径所处环境的温度;根据调整后的温度重新获取所述预测产物的预测分子组成和每组所述预测产物中每种单分子的预测分子含量,直至所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准。
- 根据权利要求1所述的方法,其特征在于,所述操作参数包括所述产物预测模型中反应路径所处环境的压力;所述调整所述产物预测模型中的操作参数,包括:调整所述产物预测模型中与所述预测产物对应的反应路径所处环境的压力;根据调整后的压力重新获取所述预测产物的预测分子组成和所述预测产物中每种单分子的预测分子含量,直至所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准。
- 根据权利要求4所述的方法,其特征在于,所述根据每组所述混合产品的分子组成和每种单分子的含量分别计算每组所述混合产品的产品物性,包括:获取每组所述产品调合原料的第一分子组成和每组所述产品调合原料中每种单分子的第一组分含量;按所述预设规则集合,根据每组所述产品调合原料的第一分子组成和每组所述产品调合原料中每种单分子的第一组分含量,得到每组混合产品的第二分子组成和每组混合产品中每种单分子的第二组分含量;根据每组混合产品中每种单分子包含的每种基团的基团数量和每种基团对物性的贡献值,计算每组混合产品中每种单分子的物性;根据每组混合产品中每种单分子的物性和所述第二组分含量,计算每组混合产品的物性。
- 根据权利要求9所述的方法,其特征在于,所述单分子的物性的计算方法包括:针对每种单分子,获取构成所述单分子的每种基团的基团数量,以及获取每种所述基团对物性的贡献值;将构成所述单分子的每种基团的基团数量以及每种所述基团对物性的贡献值,输入预先训练的物性计算模型,获取所述物性计算模型输出的所述单分子的物性;其中,所述物性计算模型,用于根据单分子包含的每种基团的基团数量以及所述每种基团对物性的贡献值,计算所述单分子的物性。
- 根据权利要求10所述的方法,其特征在于,所述将构成所述单分子的每种基团的基团数量以及每种所述基团对物性的贡献值,输入预先训练的物性计算模型之前,所述方法还包括:将构成所述单分子的每种基团的基团数量与数据库中预存储的已知物性的模板单分子的分子信息进行比对;所述分子信息包括:构成所述模板单分子的每种基团的基团数量;判断是否存在与所述单分子相同的所述模板单分子;若存在与所述单分子相同的所述模板单分子,输出所述模板单分子的物性作为所述单分子的物性;若不存在与所述单分子相同的所述模板单分子,则进行所述将构成所述单分子的每种基团的基团数量以及每种所述基团对物性的贡献值,输入预先训练的物性计算模型的步骤。
- 根据权利要求10或11项所述的方法,其特征在于,训练所述物性计算模型的步骤,包括:构建单分子的物性计算模型;获取构成样本单分子的每种基团的基团数量;其中,所述样本单分子的物性已知;将构成所述样本单分子的每种基团的基团数量输入所述物性计算模型;获取所述物性计算模型输出的所述样本单分子的预测物性;如果所述预测物性与已知的所述物性之间的偏差值小于预设偏差阈值,则判定所述物性计算模型收敛,在已收敛的所述物性计算模型中获取每种基团对所述物性的贡献值,并存储所述基团对所述物性的贡献值;如果所述预测物性与已知的所述物性之间的偏差值大于等于所述偏差阈值,则调整所述物性计算模型中每种基团对所述物性的贡献值,直到所述物性计算模型收敛为止。
- 根据权利要求12所述的方法,其特征在于,建立如下所示物性计算模型:f=a+Σn iΔf i;其中,f为所述单分子的物性,n i为所述单分子中第i种基团的基团数量,Δf i为所述单分子中第i种基团对所述物性的贡献值,a为关联常数。
- 根据权利要求12所述的方法,其特征在于,所述获取构成样本单分子的每种基团的基团数量,包括:在所述单分子的所有基团中确定一级基团、一级基团的基团数量、多级基团和多级基团的基团数量;将构成单分子的所有基团作为一级基团;将同时存在且对同一种物性共同存在贡献的多种基团作为多级基团,将所述多种基团的数量作为所述多级基团的级别。
- 根据权利要求11所述的方法,其特征在于,所述获取构成所述单分子的每种基团的基团数量,包括:在所述单分子的所有基团中确定一级基团、一级基团的基团数量、多级基团和多级基团的基团数量;将构成单分子的所有基团作为一级基团;将同时存在且对同一种物性共同存在贡献的多种基团作为多级基团,将所述多种基团的数量作为所述多级基团的级别。
- 根据权利要求16所述的方法,其特征在于,所述单分子的物性包括:单分子的辛烷值;所述计算所述单分子的物性,包括:根据如下物性计算模型计算所述单分子的辛烷值:X=SOL×GROUP 31+SOL×GROUP 32+......+SOL×GROUP 3N+h;其中,X为所述单分子的辛烷值,SOL为根据构成所述单分子的每种基团的基团数量转化得到的单分子向量,GROUP 31为根据一级基团对辛烷值的贡献值转化得到的第2N+1贡献值向量,GROUP 32为根据二级基团对辛烷值的贡献值转化得到的第2N+2贡献值向量,GROUP 3N为根据N级基团对辛烷值的贡献值转化得到的第3N贡献值向量;所述N为大于或等于2的正整数;h为第五预设常数。
- 根据权利要求4所述的方法,其特征在于,所述混合产品的产品物性,包括:密度、浊点、倾点、苯胺点和辛烷值。
- 根据权利要求20所述的方法,其特征在于,当所述混合产品的产品物性为密度时,计算每组所述混合产品的产品物性,包括:通过如下计算公式计算每组所述混合产品的密度:density=Σ(D i×x i_volume);其中,density为所述混合产品的密度,D i为第i种所述单分子的密度,x i_volume为第i种所述单分子的第二组分含量。
- 根据权利要求20所述的方法,其特征在于,当所述混合产品的产品物性为浊点时,计算每组所述混合产品的产品物性,包括:针对每组混合产品,根据该组混合产品中每种所述单分子的密度和沸点计算得到每种所述单分子的浊点贡献值;根据该组混合产品中所有所述单分子的浊点贡献值和每种单分子的含量,计算该组 混合产品的浊点。
- 根据权利要求20所述的方法,其特征在于,当所述混合产品的产品物性为倾点时,计算每组所述混合产品的产品物性,包括:针对每组混合产品,根据该组混合产品中每种所述单分子的密度和分子量,计算每种所述单分子的倾点贡献值;根据该组混合产品中所有所述单分子的倾点贡献值和每种单分子的含量,计算该组混合产品的倾点。
- 根据权利要求20所述的方法,其特征在于,当所述混合产品的产品物性为苯胺点时,计算每组所述混合产品的产品物性,包括:针对每组混合产品,根据该组混合产品中所述单分子的密度和沸点计算得到所述单分子的苯胺点贡献值;根据该组混合产品中所有所述单分子的苯胺点贡献值和每种单分子的含量,计算所述混合产品的苯胺点。
- 根据权利要求20所述的方法,其特征在于,当所述混合产品的产品物性为辛烷值时,计算每组所述混合产品的产品物性,包括:针对每组混合产品,获取该组混合产品中每种所述单分子的辛烷值和每种单分子的含量;通过如下计算公式计算所述混合产品的辛烷值:其中,所述ON为所述混合产品的辛烷值,HISQFG为分子集合,H为正构烷烃的分子集合,I为异构烷烃的分子集合,S为环烷烃的分子集合,Q为烯烃的分子集合,F为芳香烃的分子集合,G为含氧化合物的分子集合,υ i为所述混合产品中的各个分子的含量;υ H、υ I、υ S、υ Q、υ F、υ G分别为所述混合产品中的正构烷烃的总含量、异构烷烃的总含量、环烷烃的总含量、烯烃的总含量、芳香烃的总含量和含氧化合物的化合物总含量;β i为所述混合产品中的每种分子的回归参数;ON i为所述混合产品中的每种分子的辛烷值;C H表示正构烷烃与其他分子的交互系数;C I表示异构烷烃与其他分子的交互系数;C S表示环烷烃与其他分子的交互系数;C Q表示烯烃与其他分子的交互系数;C F表示芳香烃与其他分子的交互系数;C G表示含氧类化合物与其他分子的交互系数; 表示正构烷烃与异构烷烃之间的第一常数系数、 表示正构烷烃与环烷烃之间的第一常数系数、 表示正构烷烃与烯烃之间的第一常数系数、 表示正构烷烃与芳香烃之间的第一常数系数、 表示正构烷烃与含氧化合物之间的第一常数系数、 表示异构烷烃与环烷烃之间的第一常数系数、 表示异构烷烃与烯烃之间的第一常数系数、 表示异构烷烃与芳香烃之间的第一常数系数、 表示异构烷烃与含氧化合物之间的第一常数系数、 表示环烷烃与烯烃之间的第一常数系数、 表示环烷烃与芳香烃之间的第一常数系数、 表示环烷烃与含氧化合物之间的第一常数系数、 表示烯烃与芳香烃之间的第一常数系数、 表示烯烃与含氧化合物之间的第一常数系数、 表示芳香烃与含氧化合物之间的第一常数系数、 表示正构烷烃与异构烷烃之间的第二常数系数、 表示正构烷烃与环烷烃之间的第二常数系数、 表示正构烷烃与烯烃之间的第二常数系数、 表示正构烷烃与芳香烃之间的第二常数系数、 表示正构烷烃与含氧化合物之间的第二常数系数、 表示异构烷烃与环烷烃之间的第二常数系数、 表示异构烷烃与烯烃之间的第二常数系数、 表示异构烷烃与芳香烃之间的第二常数系数、 表示异构烷烃与含氧化合物之间的第二常数系数、 表示环烷烃与烯烃之间的第二常数系数、 表示环烷烃与芳香烃之间的第二常数系数、 表示环烷烃与含氧化合物之间的第二常数系数、 表示烯烃与芳香烃之间的第二常数系数、 表示烯烃与含氧化合物之间的第二常数系数、 表示芳香烃与含氧化合物之间的第二常数系数;其中,所述辛烷值包括:研究法辛烷值和马达法辛烷值。
- 根据权利要求1所述的方法,其特征在于,对产物预测模型进行训练的步骤,包括:建立产物预测模型;其中,所述产物预测模型,包括:包括多种反应规则的反应规则集合以及反应速率算法;获取样本原料的样本原料信息;利用所述样本原料信息,对所述反应规则集合进行训练,并固定训练完成的所述反应规则集合;利用所述样本原料信息,对所述反应速率算法进行训练,并固定训练完成的所述反应速率算法,得到训练完成的所述产物预测模型。
- 根据权利要求26所述的方法,其特征在于,所述样本原料的样本原料信息,包括:所述样本原料的分子组成,所述样本原料中每种分子的分子含量,所述样本原料对应的实际产物的分子组成以及所述实际产物中每种分子的实际含量。
- 根据权利要求27所述的方法,其特征在于,利用所述样本原料信息,对所述反应规则集合进行训练,包括:将所述样本原料的分子组成按预设的反应规则集合进行处理,得到所述样本原料的分子组成中每种分子对应的反应路径;根据所述样本原料的分子组成中每种分子对应的反应路径,得到包含所述样本原料、中间产物以及预测产物的装置输出产物的第一分子组成;在所述装置输出产物中,包括:所述样本原料、中间产物以及预测产物;根据所述装置输出产物的第一分子组成与所述实际产物的第二分子组成,计算第一相对偏差;若所述第一相对偏差符合预设条件,则固定所述反应规则集合;若所述第一相对偏差不符合预设条件,则调整所述反应规则集合中的反应规则,根据调整后的反应规则集合,重新计算所述第一相对差值,直至所述第一相对偏差符合预设条件。
- 根据权利要求28所述的方法,其特征在于,根据所述装置输出产物的第一分子组成与所述实际产物的第二分子组成,计算第一相对偏差,包括:获取所述第一分子组成中单分子的种类,构成第一集合;获取所述第二分子组成中单分子的种类,构成第二集合;判断所述第二集合是否为所述第一集合的子集;若所述第二集合不是所述第一集合的子集,则获取预存储的不符合预设条件的相对 偏差值作为所述第一相对偏差值;若所述第二集合是所述第一集合的子集,通过如下计算公式计算第一相对偏差:x 1为所述第一相对偏差,M为所述第一集合,M 1为所述样本原料的分子组成中单分子的种类组成的集合,M 2为所述中间产物的分子组成中单分子的种类组成的集合,M 3为所述第二集合,card表示集合中元素的个数。
- 根据权利要求27所述的方法,其特征在于,利用所述样本原料信息,对所述反应速率算法进行训练,包括:根据所述反应速率算法,分别计算所述样本原料的分子组成中每种分子对应的反应路径的反应速率;根据所述样本原料中每种分子的分子含量和所述分子的反应路径对应的反应速率,得到所述样本原料对应的预测产物中每种分子的预测含量;根据所述预测产物中每种分子的预测含量和所述实际产物中每种分子的实际含量,计算第二相对偏差;若所述第二相对偏差符合预设条件,则固定所述反应速率算法;若所述第二相对偏差不符合预设条件,则调整所述反应速率算法中的参数,根据调整后的反应速率算法,重新计算所述第二相对偏差,直至所述第二相对偏差符合预设条件。
- 根据权利要求1-31任意一项所述的方法,其特征在于,所述石油加工装置的种类包括:催化裂化装置,延迟焦化装置,渣油加氢装置,加氢裂化装置,柴油加氢改质装置,柴油加氢精制装置,汽油加氢精制装置,催化重整装置和烷基化装置;其中,每种石油加工装置对应一种反应规则集。
- 一种分子级装置的实时优化装置,其特征在于,所述实时优化装置包括:第一获取单元,用于获取原油的分子组成;第一处理单元,用于根据所述原油的分子组成中各种单分子的物性,获取所述原油进行蒸馏得到的不同馏分的分子组成;第二处理单元,用于按预设原料比例,将相应的各个馏分作为石油加工原料,分别输入预先训练的与石油加工装置对应的产物预测模型,以得到所述产物预测模型输出的相应的预测产物的预测分子组成和所述预测分子组成中每种单分子的预测分子含量;第二获取单元,用于获取预先设置的目标产物的预设标准集合;第三处理单元,根据所述预测产物的预测分子组成和预测分子组成中每种单分子的预测分子含量,判断所述预测产物是否符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准;如果所述预测产物不符合所述预设标准集合中与所述预测产物对应的目标产物的任一预设标准,则调整所述产物预测模型中的操作参数,以重新获取所述预测产物的预测分子组成和所述预测分子组成中每种单分子的预测分子含量,直至所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准。
- 根据权利要求33所述的装置,其特征在于,所述装置还包括:流量控制单元,用于获取输入每个所述石油加工装置的石油加工原料的输入流量;判断每个所述输入流量是否均符合相应所述石油加工装置的预设输入流量范围;若存在任一所述输入流量不符合相应所述石油加工装置的预设输入流量范围,则调整所述预设原料比例,按调整后的所述预设原料比例重新将相应的各个馏分作为石油加工原料分别输入相应的石油加工装置的产物预测模型;直至每个所述输入流量均符合相应所述石油加工装置的预设输入流量范围。
- 根据权利要求33所述的装置,其特征在于,所述第三处理单元,具体用于根据所述预测产物的预测分子组成和预测分子组成中每种单分子的预测分子含量计算所述预测分子组成中每种单分子的物性;根据所述预测分子组成中每种单分子的物性和预测分子组成中每种单分子的预测分子含量,计算所述预测产物的预测物性;判断每个所述预测产物的预测物性是否符合所述预设标准集合中对应的目标产物的预设物性限制区间。
- 根据权利要求33所述的装置,其特征在于,所述装置还包括:产品调合单元,用于将各个所述预测产物作为产品调合原料按预设规则集合进行调合,得到多组混合产品的分子组成和混合产品中每种单分子的含量;根据每组所述混合产品的分子组成和混合产品中每种单分子的含量分别计算每组所述混合产品的产品物性。
- 根据权利要求36所述的装置,其特征在于,所述第三处理单元,具体用于判断每组所述混合产品的产品物性是否符合所述预设标准集合中对应的各个目标产物调合得到的目标混合产品的预设产品物性;若符合预设产品物性,则根据所有所述混合产品获取目标参数,判断所述目标参数是否符合预设条件;若所述目标参数符合预设条件,则确定所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准,并输出所述预设原料比例、产物预测模型和预设规则集合作为生产加工方案;若所述目标参数不符合预设条件,则调整所述产物预测模型中的操作参数和所述预设规则集合中的预设规则,重新得到多组混合产品,直至每组所述混合产品的产品物性符合预设产品物性,且所有所述混合产品中的目标参数符合预设条件。
- 根据权利要求37所述的装置,其特征在于,所述第三处理单元,具体用于获取每组混合产品的产品价格和每组混合产品的产量;根据每组混合产品的产量和每组混合产品的产品价格,计算每组混合产品的产品效益;对每组混合产品的产品效益进行累加得到累计效益;获取每组所述石油加工原料的原料价格和每个所述石油加工装置的操作成本;将所述累计效益减去所有石油加工原料的所述原料价格和所有石油加工装置的操作成本,得到综合效益;将所述综合效益作为所述目标参数;判断所述综合效益是否达到最大值;若所述综合效益达到最大值,则确定所述目标参数符合预设条件;若所述综合效益未达到最大值,则确定所述目标参数不符合预设条件。
- 根据权利要求33所述的装置,其特征在于,所述第三处理单元,具体用于调整所述产物预测模型中与所述预测产物对应的反应路径所处环境的温度;根据调整后的温度重新获取所述预测产物的预测分子组成和每组所述预测产物中每种单分子的预测分子含量,直至所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准。
- 根据权利要求33所述的装置,其特征在于,所述第三处理单元,具体用于调整所述产物预测模型中与所述预测产物对应的反应路径所处环境的压力;根据调整后的压力重新获取所述预测产物的预测分子组成和所述预测产物中每种单分子的预测分子含 量,直至所述预测产物符合所述预设标准集合中与所述预测产物对应的目标产物的预设标准。
- 根据权利要求36所述的装置,其特征在于,所述产品调合单元,具体用于获取每组所述产品调合原料的第一分子组成和每组所述产品调合原料中每种单分子的第一组分含量;按所述预设规则集合,根据每组所述产品调合原料的第一分子组成和每组所述产品调合原料中每种单分子的第一组分含量,得到每组混合产品的第二分子组成和每组混合产品中每种单分子的第二组分含量;根据每组混合产品中每种单分子包含的每种基团的基团数量和每种基团对物性的贡献值,计算每组混合产品中每种单分子的物性;根据每组混合产品中每种单分子的物性和所述第二组分含量,计算每组混合产品的物性。
- 根据权利要求41所述的装置,其特征在于,所述产品调合单元,具体用于针对每种单分子,获取构成所述单分子的每种基团的基团数量,以及获取每种所述基团对物性的贡献值;将构成所述单分子的每种基团的基团数量以及每种所述基团对物性的贡献值,输入预先训练的物性计算模型,获取所述物性计算模型输出的所述单分子的物性;其中,所述物性计算模型,用于根据单分子包含的每种基团的基团数量以及所述每种基团对物性的贡献值,计算所述单分子的物性。
- 根据权利要求42所述的装置,其特征在于,所述装置还包括:单分子物性模板匹配单元,用于将构成所述单分子的每种基团的基团数量与数据库中预存储的已知物性的模板单分子的分子信息进行比对;所述分子信息包括:构成所述模板单分子的每种基团的基团数量;判断是否存在与所述单分子相同的所述模板单分子;若存在与所述单分子相同的所述模板单分子,输出所述模板单分子的物性作为所述单分子的物性;若不存在与所述单分子相同的所述模板单分子,则通过所述产品调合单元进行所述将构成所述单分子的每种基团的基团数量以及每种所述基团对物性的贡献值,输入预先训练的物性计算模型的步骤。
- 根据权利要求42或43所述的装置,其特征在于,所述装置还包括:模型训练单元,用于构建单分子的物性计算模型;获取构成样本单分子的每种基团的基团数量;其中,所述样本单分子的物性已知;将构成所述样本单分子的每种基团的基团数量输入所述物性计算模型;获取所述物性计算模型输出的所述样本单分子的预测物性;如果所述预测物性与已知的所述物性之间的偏差值小于预设偏差阈值,则判定所述物性计算模型收敛,在已收敛的所述物性计算模型中获取每种基团对所述物性的贡献值,并存储所述基团对所述物性的贡献值;如果所述预测物性与已知的所述物性之间的 偏差值大于等于所述偏差阈值,则调整所述物性计算模型中每种基团对所述物性的贡献值,直到所述物性计算模型收敛为止。
- 根据权利要求44所述的装置,其特征在于,所述模型训练单元,具体用于建立如下所示物性计算模型:f=a+Σn iΔf i;其中,f为所述单分子的物性,n i为所述单分子中第i种基团的基团数量,Δf i为所述单分子中第i种基团对所述物性的贡献值,a为关联常数。
- 根据权利要求44所述的装置,其特征在于,所述模型训练单元,具体用于在所述单分子的所有基团中确定一级基团、一级基团的基团数量、多级基团和多级基团的基团数量;将构成单分子的所有基团作为一级基团;将同时存在且对同一种物性共同存在贡献的多种基团作为多级基团,将所述多种基团的数量作为所述多级基团的级别。
- 根据权利要求43所述的装置,其特征在于,产品调合单元,具体用于所述单分子的所有基团中确定一级基团、一级基团的基团数量、多级基团和多级基团的基团数量;将构成单分子的所有基团作为一级基团;将同时存在且对同一种物性共同存在贡献的多种基团作为多级基团,将所述多种基团的数量作为所述多级基团的级别。
- 根据权利要求48所述的装置,其特征在于,所述产品调合单元,具体用于根据如下物性计算模型计算所述单分子的辛烷值:X=SOL×GROUP 31+SOL×GROUP 32+......+SOL×GROUP 3N+h;其中,X为所述单分子的辛烷值,SOL为根据构成所述单分子的每种基团的基团数量转化得到的单分子向量,GROUP 31为根据一级基团对辛烷值的贡献值转化得到的第2N+1贡献值向量,GROUP 32为根据二级基团对辛烷值的贡献值转化得到的第2N+2贡献值向量,GROUP 3N为根据N级基团对辛烷值的贡献值转化得到的第3N贡献值向量;所述N为大于或等于2的正整数;h为第五预设常数。
- 根据权利要求36所述的装置,其特征在于,所述混合产品的产品物性,包括:密度、浊点、倾点、苯胺点和辛烷值。
- 根据权利要求52所述的装置,其特征在于,所述产品调合单元,具体用于通过如下计算公式计算每组所述混合产品的密度:density=Σ(D i×x i_volume);其中,density为所述混合产品的密度,D i为第i种所述单分子的密度,x i_volume为第i种所述单分子的第二组分含量。
- 根据权利要求52所述的装置,其特征在于,所述产品调合单元,具体用于针对每组混合产品,根据该组混合产品中每种所述单分子的密度和沸点计算得到每种所述单分子的浊点贡献值;根据该组混合产品中所有所述单分子的浊点贡献值和每种单分子的含量,计算该组混合产品的浊点。
- 根据权利要求52所述的装置,其特征在于,所述产品调合单元,具体用于针对每组混合产品,根据该组混合产品中每种所述单分子的密度和分子量,计算每种所述单 分子的倾点贡献值;根据该组混合产品中所有所述单分子的倾点贡献值和每种单分子的含量,计算该组混合产品的倾点。
- 根据权利要求52所述的装置,其特征在于,所述产品调合单元,具体用于针对每组混合产品,根据该组混合产品中所述单分子的密度和沸点计算得到所述单分子的苯胺点贡献值;根据该组混合产品中所有所述单分子的苯胺点贡献值和每种单分子的含量,计算所述混合产品的苯胺点。
- 根据权利要求52所述的装置,其特征在于,所述产品调合单元,具体用于针对每组混合产品,获取该组混合产品中每种所述单分子的辛烷值和每种单分子的含量;通过如下计算公式计算所述混合产品的辛烷值:其中,所述ON为所述混合产品的辛烷值,HISQFG为分子集合,H为正构烷烃的分子集合,I为异构烷烃的分子集合,S为环烷烃的分子集合,Q为烯烃的分子集合,F为芳香烃的分子集合,G为含氧化合物的分子集合,υ i为所述混合产品中的各个分子的含量;υ H、υ I、υ S、υ Q、υ F、υ G分别为所述混合产品中的正构烷烃的总含量、异构烷烃的总含量、环烷烃的总含量、烯烃的总含量、芳香烃的总含量和含氧化合物的化合物总含量;β i为所述混合产品中的每种分子的回归参数;ON i为所述混合产品中的每种 分子的辛烷值;C H表示正构烷烃与其他分子的交互系数;C I表示异构烷烃与其他分子的交互系数;C S表示环烷烃与其他分子的交互系数;C Q表示烯烃与其他分子的交互系数;C F表示芳香烃与其他分子的交互系数;C G表示含氧类化合物与其他分子的交互系数; 表示正构烷烃与异构烷烃之间的第一常数系数、 表示正构烷烃与环烷烃之间的第一常数系数、 表示正构烷烃与烯烃之间的第一常数系数、 表示正构烷烃与芳香烃之间的第一常数系数、 表示正构烷烃与含氧化合物之间的第一常数系数、 表示异构烷烃与环烷烃之间的第一常数系数、 表示异构烷烃与烯烃之间的第一常数系数、 表示异构烷烃与芳香烃之间的第一常数系数、 表示异构烷烃与含氧化合物之间的第一常数系数、 表示环烷烃与烯烃之间的第一常数系数、 表示环烷烃与芳香烃之间的第一常数系数、 表示环烷烃与含氧化合物之间的第一常数系数、 表示烯烃与芳香烃之间的第一常数系数、 表示烯烃与含氧化合物之间的第一常数系数、 表示芳香烃与含氧化合物之间的第一常数系数、 表示正构烷烃与异构烷烃之间的第二常数系数、 表示正构烷烃与环烷烃之间的第二常数系数、 表示正构烷烃与烯烃之间的第二常数系数、 表示正构烷烃与芳香烃之间的第二常数系数、 表示正构烷烃与含氧化合物之间的第二常数系数、 表示异构烷烃与环烷烃之间的第二常数系数、 表示异构烷烃与烯烃之间的第二常数系数、 表示异构烷烃与芳香烃之间的第二常数系数、 表示异构烷烃与含氧化合物之间的第二常数系数、 表示环烷烃与烯烃之间的第二常数系数、 表示环烷烃与芳香烃之间的第二常数系数、 表示环烷烃与含氧化合物之间的第二常数系数、 表示烯烃与芳香烃之间的第二常数系数、 表示烯烃与含氧化合物之间的第二常数系数、 表示芳香烃与含氧化合物之间的第二常数系数;其中,所述辛烷值包括:研究法辛烷值和马达法辛烷值。
- 根据权利要求33所述的装置,其特征在于,所述装置还包括:模型训练单元,用于建立产物预测模型;其中,所述产物预测模型,包括:包括多种反应规则的反应规则集合以及反应速率算法;获取样本原料的样本原料信息;利用所述样本原料信息,对所述反应规则集合进行训练,并固定训练完成的所述反应规则集合;利用所述样本原料信息,对所述反应速率算法进行训练,并固定训练完成的所述反应速率算法,得到训练完成的所述产物预测模型。
- 根据权利要求58所述的装置,其特征在于,所述样本原料的样本原料信息,包括:所述样本原料的分子组成,所述样本原料中每种分子的分子含量,所述样本原料对应的实际产物的分子组成以及所述实际产物中每种分子的实际含量。
- 根据权利要求59所述的装置,其特征在于,所述模型训练单元,具体用于将所述样本原料的分子组成按预设的反应规则集合进行处理,得到所述样本原料的分子组成中每种分子对应的反应路径;根据所述样本原料的分子组成中每种分子对应的反应路径,得到包含所述样本原料、中间产物以及预测产物的装置输出产物的第一分子组成;在所述装置输出产物中,包括:所述样本原料、中间产物以及预测产物;根据所述装置输出产物的第一分子组成与所述实际产物的第二分子组成,计算第一相对偏差;若所述第一相对偏差符合预设条件,则固定所述反应规则集合;若所述第一相对偏差不符合预设条件,则调整所述反应规则集合中的反应规则,根据调整后的反应规则集合,重新计算所述第一相对差值,直至所述第一相对偏差符合预设条件。
- 根据权利要求59所述的装置,其特征在于,所述模型训练单元,具体用于根据所述反应速率算法,分别计算所述样本原料的分子组成中每种分子对应的反应路径的反应速率;根据所述样本原料中每种分子的分子含量和所述分子的反应路径对应的反应速率,得到所述样本原料对应的预测产物中每种分子的预测含量;根据所述预测产物中每种分子的预测含量和所述实际产物中每种分子的实际含量,计算第二相对偏差;若所述第二相对偏差符合预设条件,则固定所述反应速率算法;若所述第二相对偏差不符合预设条件,则调整所述反应速率算法中的参数,根据调整后的反应速率算法,重新计算所述第二相对偏差,直至所述第二相对偏差符合预设条件。
- 根据权利要求33-63任意一项所述的装置,其特征在于,所述石油加工装置的种类包括:催化裂化装置,延迟焦化装置,渣油加氢装置,加氢裂化装置,柴油加氢改质装置,柴油加氢精制装置,汽油加氢精制装置,催化重整装置和烷基化装置;其中,每种石油加工装置对应一种反应规则集。
- 一种分子级装置的实时优化系统,其特征在于,所述分子级装置的实时优化系统包括处理器、存储器;所述处理器用于执行所述存储器中存储的分子级装置的实时优化程序,以实现权利要求1-32中任一项所述的分子级装置的实时优化方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有一个或者多个程序,所述一个或者多个程序可被一个或者多个处理器执行,以实现权利要求1-32中任一项所述的分子级装置的实时优化方法。
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| CN109859805A (zh) * | 2019-03-22 | 2019-06-07 | 杭州辛孚能源科技有限公司 | 一种基于分子组成的汽油调和优化方法 |
| CN109949870A (zh) * | 2019-03-07 | 2019-06-28 | 杭州辛孚能源科技有限公司 | 一种分子级基础油调和优化方法 |
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| CN115831250A (zh) * | 2023-02-20 | 2023-03-21 | 新疆独山子石油化工有限公司 | 一种延迟焦化反应模型构建方法及装置、存储介质及设备 |
| CN115938499A (zh) * | 2023-02-20 | 2023-04-07 | 新疆独山子石油化工有限公司 | 加氢裂化模型的优化方法、装置、电子设备及存储介质 |
| CN121034458A (zh) * | 2025-10-30 | 2025-11-28 | 北京溥络数智科技有限责任公司 | 一种分子级预测石化生产中任意流股质量的方法及系统 |
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| EP4089680B1 (en) | 2025-03-12 |
| BR112022017194A2 (pt) | 2022-12-20 |
| EP4089680A4 (en) | 2023-08-09 |
| CN111899793B (zh) | 2024-04-30 |
| US20230110441A1 (en) | 2023-04-13 |
| CN111899793A (zh) | 2020-11-06 |
| EP4089680A1 (en) | 2022-11-16 |
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