EP3344732A1 - Procédé de distillation sous vide d'une charge d'hydrocarbures et installation associée - Google Patents
Procédé de distillation sous vide d'une charge d'hydrocarbures et installation associéeInfo
- Publication number
- EP3344732A1 EP3344732A1 EP16759779.8A EP16759779A EP3344732A1 EP 3344732 A1 EP3344732 A1 EP 3344732A1 EP 16759779 A EP16759779 A EP 16759779A EP 3344732 A1 EP3344732 A1 EP 3344732A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stream
- vacuum distillation
- distillation column
- heat exchanger
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/06—Vacuum distillation
Definitions
- the present invention relates to a process for vacuum distillation of a hydrocarbon feed, comprising the following steps:
- Such a process is intended in particular for the distillation of a hydrocarbon feedstock comprising heavy compounds having high boiling points.
- the process is intended for the distillation of a feed resulting from the atmospheric distillation of crude oil.
- Crude oil refining generally includes atmospheric distillation in which temperatures are maintained below 370 ° C - 380 ° C to prevent high molecular weight components from thermal cracking and form petroleum coke.
- This oil is then distilled under vacuum to recover valuable distillates.
- the vacuum distillation is operated at very low pressures generally between 13 mbar and 133 mbar (10 mmHg to 100 mmHg), to limit the exit temperature of the oven and consequently limit the risk of cracking and coke formation by lowering the required exit temperatures.
- a vacuum generation unit comprising several stages of steam jet ejectors installed in series. These ejectors require a significant consumption of driving steam.
- a steam-based exhaust stream is introduced into the distillation column under the feed at the bottom of the distillation column. This depletion flow is recovered at the top of the column in the form of steam, mixed with the residual hydrocarbons, and then condensed before being treated in a downstream unit.
- An object of the invention is to obtain a vacuum distillation process which has a decreased utility consumption and a reduction in the size of certain equipment, while maintaining at least as good separation performance.
- the method according to the invention comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
- the depletion fluid recycle stream forming at least a portion of the depletion fluid stream
- the depletion fluid consists entirely of a make-up stream, no stream coming from the liquid stream being recycled into the flow of depletion fluid introduced into the vacuum distillation column; it comprises the introduction of the heated exhaust fluid stream into the vacuum distillation column at a level below the feed introduction level;
- the condensation step of the overhead stream is carried out in a first downstream heat exchanger, advantageously a plate heat exchanger, in particular with a low pressure drop, the first downstream heat exchanger being arranged in the distillation column; under vacuum or outside the vacuum distillation column;
- the condensation step of the overhead stream is carried out in a first downstream heat exchanger, advantageously a plate heat exchanger, in particular at a low pressure drop, the process comprising a step of passing the gas stream from the first downstream heat exchanger in a second downstream heat exchanger, to obtain an additional condensate;
- the step of passing the gas stream through the second downstream heat exchanger comprises spraying a liquid hydrocarbon stream into the gas stream;
- the step of passing the gas stream into a vacuum generating unit comprises introducing the gas stream into at least one steam ejector, to form an ejected stream, and partially condensing the ejected stream produced by each steam ejector in a condenser;
- recovered at the bottom of the vacuum distillation column is greater than 80 kg of depletion fluid per 1000 kg of net bottom stream recovered at the bottom of the vacuum distillation column and is in particular between 80 kg and 800 kg of fluid depletion per 1000 kg of net bottom stream recovered at the bottom of the vacuum distillation column;
- the invention also relates to a vacuum distillation plant, comprising:
- a vacuum generation unit a gas flow passage assembly in the vacuum generation unit and a recovery assembly of at least one condensate and a gaseous fraction of combustible gas produced in the generation unit. vacuum from the gas stream;
- the depletion fluid having a weighted average boiling temperature of from 150 ° C to 250 ° C.
- the installation according to the invention comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:
- depletion fluid recycling element it comprises a depletion fluid recycling element, the installation comprising a formation assembly of the depletion fluid stream at least partly from the depletion fluid recycling element;
- the condensing unit of the column top stream comprises a first downstream heat exchanger, advantageously a plate exchanger, preferably with low losses, placed in the vacuum distillation column or installed outside the column; vacuum distillation;
- a first downstream heat exchanger advantageously a plate exchanger, preferably with low losses, placed in the vacuum distillation column or installed outside the column; vacuum distillation;
- the condensing unit of the column top stream comprises a first downstream heat exchanger, advantageously a plate heat exchanger, preferably with a low pressure drop, and a second downstream heat exchanger, the plant comprising a flow passage assembly; gas in the second downstream heat exchanger, to obtain additional condensate.
- FIG. 1 is a block diagram of a first vacuum distillation plant, for the implementation of a first method according to the invention
- FIG. 2 is a view similar to FIG. 1, of a second vacuum distillation installation intended for the implementation of a second method according to the invention
- FIG. 3 is a view similar to FIG. 1, of a third vacuum distillation installation intended for the implementation of a third method according to the invention.
- FIG. 10 A first installation 10 according to the invention is illustrated in FIG. This installation 10 is intended for the implementation of a first method according to the invention, for the vacuum distillation of a charge 12.
- the installation 10 comprises a furnace 14 for heating the charge 12 and a depletion fluid, a vacuum distillation column 16, and bottom heat exchangers 18.
- the installation 10 further comprises lateral withdrawals 20, 22, 24, and, associated respectively with each lateral withdrawal 20, 22, 24, respective heat exchangers 26, 28 and 30.
- the installation 10 includes other types of vacuum distillation arrangements (withdrawal number 20, 22, 24 variables, number of variable packing beds 43, number of variable packing beds 41).
- the installation 10 comprises a downstream heat exchanger 32, a vacuum generation unit 34, and a condensate recovery capacity 36.
- the installation 10 comprises an optional downstream separator 38 for recovering the depletion fluid and a pump 40 for recycling the depletion fluid.
- the vacuum distillation column 16 has a first packing bed 43 whose role is to ensure a heat exchange over each rack 20, 22, 24, and whose liquid feed is provided by a first diffuser 44.
- the vacuum distillation column 16 has, below each withdrawal 20, 22, 24, a second bed 41 of packing, whose role is to ensure a fractionation and whose feeding is provided by a second liquid diffuser 42.
- the heat exchangers 26 and 28 are heat exchangers making it possible to cool part of the withdrawals 58 and 64.
- the downstream heat exchanger 32 is a water exchanger, supplied with a flow of water at ambient temperature.
- the heat exchangers 30 are heat exchangers with air.
- the vacuum generation unit 34 comprises a plurality of steam jet ejectors 45, connected in series with each other, and for each ejector 45, a downstream water condenser 46. Depending on the desired vacuum level, the number of ejector stages in series may vary.
- the unit 34 comprises three ejectors 45 in series and three condensers 46 interposed between the ejectors 45.
- This charge 12 is for example a charge of liquid hydrocarbons, such as a residual oil charge from an atmospheric distillation.
- the mass flow rate of the feed 12 is generally between 100 t / h and 1000 t / h.
- the feedstock 12 originates either directly from the bottom of an atmospheric crude distillation column (generally of the order of 350.degree. C.) or from a storage tank (at a temperature for example of the order of 80.degree. C) after reheating to a temperature of the order of 300 ° C.
- the charge 12 is first introduced into the furnace 14 to be heated and advantageously vaporized.
- the temperature of the heated charge 50 at the outlet of the furnace 14 is generally between 380 ° C. and 420 ° C. depending on the desired distillation performance and the TBP cut point between the vacuum residue 79 and the vacuum distillate 20 (FIG.
- TBP comes from "True Boiling Point", the English term meaning "true boiling point.”
- the cutting points quoted represent the distilled fraction of crude at the indicated temperatures.
- the partially vaporized charge 50 is then introduced into the vacuum distillation column 16 at a level N1 located in the flash zone above the bottom of the vacuum distillation column 16.
- a depletion fluid stream 52 consisting of hydrocarbons having a mean average boiling point (in English or Tmav) temperature between 150 ° C and 250 ° C ( typically of the order of 200 ° C), is introduced into the furnace 14 to be heated and advantageously vaporized.
- Tmav is defined in the "Databook on hydrocarbons” written by JB Maxwell under the expression "mean average boiling point”. The calculation of the temperature Tmav according to the method of JB Maxwell is also detailed in Pierre Wuithier's book “Le Pperile - Refining et Goue Chimique", Volume 1.
- a kerosene obtained from an atmospheric crude distillation having an initial TBP cut point of between 145 ° C. and 180 ° C. and a final TBP cut point of between 220 ° C. and 250 ° C. advantageously constitutes the depletion fluid.
- the depletion fluid 52 is completely vaporized and superheated before being introduced at the bottom of column 16. Part of this depletion fluid is injected in liquid form into the vacuum oven radiation beam as an accelerating fluid in order to limit the film temperatures in the tubes.
- the superheated depletion fluid stream 54 is introduced into the vacuum distillation column 16 at a level N2 located below the last plateau of a depletion zone 56 of the vacuum distillation column 16.
- the heated exhaust fluid stream 54 rises through the trays of the depletion zone 56 between the N1 and N2 levels and vaporizes the lighter fractions of the vacuum residue.
- the vacuum level at the top of the column is advantageously between 13 mbar and 40 mbar (10 mmHg and 30 mmHg), here substantially around 27 mbar (20 mmHg).
- a first stream 58 of heavy vacuum distillate (“HVGO” or “Heavy Vacuum Gas Oil” in English) is taken laterally at a first withdrawal 20 at a lower level N3 located above the level N1.
- a first fraction 60 of the vacuum heavy distillate stream 58 is reintroduced into the column 16 through the second diffuser 42 associated with the withdrawal 20.
- the remainder of the vacuum heavy distillate stream 58 passes into a heat exchanger 26 and a second fraction 62 the heavy distillate stream 58 from the heat exchanger 26 is reintroduced into the vacuum distillation column 16, through the first diffuser 44 associated with the withdrawal 20.
- the remainder of the stream is the production of 180 heavy vacuum distillate from unit.
- a second stream 64 of optional mean vacuum distillate (“MVGO” or “Medium Vacuum Gas Oil” in English) is taken at a second rack 22 at an average level N4 above the level N3.
- a first fraction 66 of the optional vacuum middle distillate stream 64 is reintroduced into the vacuum distillation column 16 through the second diffuser 42 associated with the second withdrawal 22.
- the remainder of the average vacuum distillate stream 64 passes through a heat exchanger 28.
- a second optional fraction 64 of the average vacuum distillate stream 64 from the heat exchanger 28 is reintroduced into the vacuum distillation column 16, through the first diffuser 44 of the second withdrawal 22.
- the remainder of the current is the production of 170 mean vacuum distillate from the unit.
- a third stream 70 of light vacuum distillate (“LVGO” or “Light Vacuum Gas Oil” in English) is taken at a third withdrawal 24 at a high level N5 located above the level N4, in the vicinity of the head of the vacuum distillation column 16.
- a first fraction 72 of the light vacuum distillate stream 70 is reintroduced into the vacuum distillation column 16 through the second diffuser 42 associated with the third withdrawal 24.
- the remainder of the stream 70 passes into an air exchanger 30.
- a second fraction 74 of the light vacuum distillate stream 70 from the heat exchanger 30 is reintroduced into the distillation column 16, through the first diffuser 44 of the third withdrawal 24.
- the remainder of the stream is the production 160 of light distillate under vacuum from the unit.
- a bottom stream 79 is recovered at the bottom of the vacuum distillation column.
- a top stream 80 is drawn at the top of the column, under the effect of the suction produced by the vacuum generating unit 34.
- the overhead stream 80 has a pressure equal to the overhead operating pressure 16 and has a temperature generally between 60 ° C and 100 ° C.
- the overhead stream 80 is then introduced into the downstream heat exchanger 32, to be partially condensed by heat exchange with the water circulating in the downstream heat exchanger 32.
- the overhead stream 80 is thus separated into a gaseous flow of head 82 and a liquid foot flow 84.
- the head gas stream 82 is fed to the vacuum generation unit 34. It is introduced into a first ejector 45 where it is driven by a driving steam flow 150. The mixture thus formed is introduced into the first condenser 46, to form a first condensate 86 and a first gas stream 88.
- the first gas stream 88 is introduced successively into a second ejector 45, then into a second condenser 46, to form a second condensate 90 and a second gas stream 92.
- the second gas stream 92 is then introduced into a third ejector 45, then into a third condenser 46, to form a third gas stream 94 of incondensable fuel gas and a third condensate 96 available at a pressure slightly above atmospheric pressure.
- the condensates 86, 90, 96 are recovered in a capacity 36 and are separated into a stream of condensed hydrocarbons 98 and a stream of water to be treated 100.
- the liquid foot stream 84 contains the majority of the depletion fluid introduced into the depletion fluid stream 52 at the bottom of the vacuum distillation column 16. In fact, the boiling point of the depletion fluid 52 is less than that of the vacuum light distillate stream 70 and is greater than that of water vapor.
- the depletion fluid is however more easily condensable than water vapor. This makes it possible to operate the column at a low pressure, as described above.
- the liquid foot flow 84 is introduced into the optional downstream separator 38 in equilibrium with the gas flow 82.
- Fraction 1 12 contains the majority of the depletion fluid. It is pumped into the pump 40 to form a stream 1 14 for recycling the depletion fluid.
- a purge stream 116 is withdrawn from the recycle stream 114 to reduce the amount of impurities and maintain a constant recycle current quality that is as close to the auxiliary depletion flow as possible. 18.
- the purge stream 1 16 generally represents between 5% by weight and 20% by weight of the bottom fraction 1 12 introduced into the pump 40. In a variant, the process is carried out without recycling with total purge (the absence recycle flow rate being compensated by an additional flow rate 1 18).
- the rest of the recycle stream 1 14 is returned to the furnace 14 to form, with a supply stream 1 18 exhaust fluid, the flow 52 of depletion fluid.
- Collection of the purge stream 1 16 and the supply provided by the feed stream 1 18 can renew the depletion fluid circulating in the process according to the invention. This ensures the maintenance of a good quality of distillation, and a good ability to condense the depletion fluid, eliminating the slightest fractions possibly accumulated.
- the flow rate of the depletion fluid stream 52 introduced into the distillation column 16 can be controlled by adjusting the respective flow rates of the purge stream 1 16 and the supply stream 1 18.
- Table 1 illustrates the results obtained by numerical simulation for the first process according to the invention, in the context of the treatment of a hydrocarbon feedstock 12 with a mass flow rate of 666.7 t / h resulting from the distillation.
- the depletion fluid is kerosene from of an atmospheric distillation having a TBP cut point 145 ° C-230 ° C, a molecular weight of 152 g / mol and a density at 15 ° C of 0.781.
- the temperatures are higher at the top of column 16, which allows a higher flow temperature 74 than in a conventional scheme.
- the viscosity of the stream 74 is then reduced, reducing the size of the first air heat exchanger 30.
- the size of the downstream heat exchanger 32 is reduced because there is no more water vapor to condense.
- a depletion fluid other than water vapor limits the amount of water to be treated 100 recovered in the capacity 36.
- a portion 1 19 of the drive fluid stream 52 is derived in the load 12 before it passes into the furnace 14 or during this passage.
- FIG. 2 A second installation 130 according to the invention is illustrated in FIG. 2.
- the second installation 130 is intended for the implementation of a second vacuum distillation method according to the invention.
- the downstream heat exchanger 32 of the second installation 130 is disposed directly in the distillation column 16, at the head of the column, above the upper bed 43 associated with the upper racking 30.
- the downstream heat exchanger 32 is here a plate heat exchanger with low pressure drop (typically less than 7 mbar (5 mmHg), in particular of the order of 1 mbar (1 mmHg)).
- the overhead vapors forming the overhead stream 80 from the distillation in the vacuum distillation column 16 enter the heat exchanger 32 within the vacuum distillation column 16. , by the top.
- the overhead stream 80 condenses in the heat exchanger 32.
- a gas stream 82 is extracted from the heat exchanger 32, to be fed to the vacuum generation unit 34 and a liquid foot stream 84 is recovered at the bottom of the heat exchanger 32, to be brought into the downstream separator 38.
- the table below illustrates the results obtained for the second process according to the invention, in the context of the treatment of a hydrocarbon feedstock 12 of mass flow rate equal to 666.7 t / h, resulting from the atmospheric distillation of a rough type "OURAL".
- the depletion fluid is kerosene from atmospheric distillation having a TBP cut point 145 ° C - 230 ° C, a molecular weight of 152 g / mol and a density at 15 ° C of 0.781.
- the process illustrated in FIG. 2 has an even lower pressure at the head of the column, for example less than 27 mbar (20 mmHg), and especially between 13 mbar (10 mmHg). and 20 mbar (15 mmHg).
- this diagram reduces the flow of depletion fluid 52 necessary, while maintaining a reduced heat exchange area in the downstream heat exchanger. 32, and in the exchangers 30.
- the consumption of cooling water is furthermore further reduced, taking into account the lower amount of exhaustion fluid to be condensed in the heat exchanger 32.
- the exchanger 32 is located outside the distillation column 16.
- the performance of this variant is between the performance obtained with the installation shown in FIG. 1 and the performances obtained with the installation shown in FIG.
- FIG. 3 A third installation 140 according to the invention is illustrated in FIG. 3. Unlike the second installation 130 shown in FIG. 2, the installation 140 comprises a second downstream heat exchanger 142 disposed downstream of the first downstream heat exchanger 32 situated in the vacuum distillation column 16. The second downstream heat exchanger 142 is disposed outside the vacuum distillation column 16, and receives the gas stream 82 from the first downstream heat exchanger 32.
- the second downstream heat exchanger 142 is a plate heat exchanger with a low pressure drop (typically less than 7 mbar (5 mmHg), in particular of the order of 1.3 mbar (1 mmHg)). It is here provided with a ramp 143 for spraying a stream of liquid hydrocarbons 144, typically a stream coming from the atmospheric distillation plant.
- the liquid hydrocarbon stream 144 is for example an atmospheric heavy distillate stream ("HAGO" or "Heavy Atmospheric Gas Oil").
- the third method of vacuum distillation according to the invention differs from the second method in that the flow of the head 82 produced in the first downstream heat exchanger 32 is introduced into the second heat exchanger 142.
- the flow head 82 is at least partially condensed on the one hand, thanks to the absorption generated by the introduction of the fluid 144, and secondly, by heat exchange with the water.
- An additional condensate 146 is produced at the foot of the second downstream heat exchanger 142, the remainder of the gas stream 82 being introduced into the vacuum generation unit 34, as previously described.
- the additional condensate is collected in the capacity 36.
- the table below illustrates the results obtained for the third method according to the invention, in the context of the treatment of a hydrocarbon load of mass flow rate equal to 666.7 t / h resulting from the atmospheric distillation of a crude type "OURAL".
- the depletion fluid is kerosene.
- the third method according to the invention further reduces the steam consumption of the vacuum generation unit 34.
- the overall fuel consumption in the process is further reduced, as well as the amount of water to be treated 100 produced.
- the processes according to the invention considerably reduce the consumption of utilities, in particular cooling water and in steam, which reduces the operating costs of the installation, while maintaining a process for achieving ambitious performance of recovery rates of distillates under vacuum.
- the supply flow rate 1 18 exhaust fluid can be controlled regardless of the nature and the flow rate of the load 12, and regardless of the flow rate of current recycling 14. The latter to provide the quantity and quality of depletion fluid 52 necessary for the distillation quality.
- the quality of the depletion fluid 52 used consisting of a mixture of hydrocarbons having a weighted average boiling temperature (Tmav) between 150 ° C and 250 ° C advantageously between 190 ° C and 210 ° C is perfectly controlled in the process according to the invention.
- Tmav weighted average boiling temperature
- Such a fluid is optimal since it ensures an effective depletion of the charge 12, while being easily condensable at very low pressure at the top of the vacuum distillation column 16, and therefore recyclable through the liquid stream 1 14.
- the fluid 52 has the advantage of being almost completely recovered in the overhead stream 80. This allows the recycling and avoids the extraction of depletion fluid 52 in the distillate streams 160, 170, 180, particularly in the stream 160 of light distillate under vacuum.
- more than 95% by weight of the depletion fluid 52 introduced into the vacuum distillation column 16 is recovered from the vacuum distillation column 16 in the stream 1 12 via the overhead stream 80 after condensation.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1558097A FR3040311B1 (fr) | 2015-09-01 | 2015-09-01 | Procede de distillation sous vide d'une charge d'hydrocarbures et installation associee |
| PCT/EP2016/070614 WO2017037174A1 (fr) | 2015-09-01 | 2016-09-01 | Procédé de distillation sous vide d'une charge d'hydrocarbures et installation associée |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3344732A1 true EP3344732A1 (fr) | 2018-07-11 |
| EP3344732B1 EP3344732B1 (fr) | 2020-06-17 |
Family
ID=54291529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16759779.8A Active EP3344732B1 (fr) | 2015-09-01 | 2016-09-01 | Procédé de distillation sous vide d'une charge d'hydrocarbures |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180346824A1 (fr) |
| EP (1) | EP3344732B1 (fr) |
| ES (1) | ES2816023T3 (fr) |
| FR (1) | FR3040311B1 (fr) |
| WO (1) | WO2017037174A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022029487A1 (fr) * | 2020-08-07 | 2022-02-10 | Carbovate Development Corp. | Procédé et système de séparation de courant d'hydrocarbure |
| US20240026227A1 (en) * | 2022-07-18 | 2024-01-25 | Engineers India Limited | Improved configuration of vacuum distillation unit and process for separating components of reduced crude oil |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1843520A (en) * | 1924-05-05 | 1932-02-02 | Standard Oil Co | Art of distilling oils |
| US2853439A (en) * | 1952-08-01 | 1958-09-23 | Exxon Research Engineering Co | Combination distillation and hydrocarbon conversion process |
| US3110663A (en) * | 1959-12-30 | 1963-11-12 | Gulf Oil Corp | Process and apparatus for distilling and visbreaking reduced crude |
| US4261814A (en) * | 1977-11-30 | 1981-04-14 | Exxon Research And Engineering Co. | Vacuum pipestill operation |
| US5167773A (en) * | 1990-01-16 | 1992-12-01 | Exxon Research And Engineering Co. | Distillation tower and sidestream stripper therefor |
| US5858213A (en) * | 1996-07-30 | 1999-01-12 | Exxon Research And Engineering Company | Monitoring for coke formation during hydrocarbon feed processing |
| CN104053751B (zh) * | 2012-01-17 | 2017-09-15 | 国际壳牌研究有限公司 | 真空蒸馏烃物流的方法 |
-
2015
- 2015-09-01 FR FR1558097A patent/FR3040311B1/fr not_active Expired - Fee Related
-
2016
- 2016-09-01 EP EP16759779.8A patent/EP3344732B1/fr active Active
- 2016-09-01 US US15/756,374 patent/US20180346824A1/en not_active Abandoned
- 2016-09-01 WO PCT/EP2016/070614 patent/WO2017037174A1/fr not_active Ceased
- 2016-09-01 ES ES16759779T patent/ES2816023T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3040311B1 (fr) | 2017-10-06 |
| US20180346824A1 (en) | 2018-12-06 |
| WO2017037174A1 (fr) | 2017-03-09 |
| FR3040311A1 (fr) | 2017-03-03 |
| EP3344732B1 (fr) | 2020-06-17 |
| ES2816023T3 (es) | 2021-03-31 |
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