WO2005012461A1 - Procede d'amelioration du point d'ecoulement de charges hydrocarbonees issues du procede fischer-tropsch utilisant un catalyseur a base d'un melange de zeolithes - Google Patents
Procede d'amelioration du point d'ecoulement de charges hydrocarbonees issues du procede fischer-tropsch utilisant un catalyseur a base d'un melange de zeolithes Download PDFInfo
- Publication number
- WO2005012461A1 WO2005012461A1 PCT/FR2004/001715 FR2004001715W WO2005012461A1 WO 2005012461 A1 WO2005012461 A1 WO 2005012461A1 FR 2004001715 W FR2004001715 W FR 2004001715W WO 2005012461 A1 WO2005012461 A1 WO 2005012461A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catalyst
- zeolite
- hydroisomerization
- charge
- fraction
- 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.)
- Ceased
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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
- C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
- C10G45/62—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing platinum group metals or compounds thereof
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/10—Lubricating oil
Definitions
- the present invention relates to a method for improving the pour point of hydrocarbon charges from the Fischer-Tropsch process, in particular for converting, with good efficiency, fillers having high pour points into at least one section having a low pour point and a high viscosity index for oil bases, by passing over a hydrodewaxing catalyst catalytic comprising at least one zeolite (molecular sieve) chosen from the group formed by zeolites of structural type TON (Theta-1, ZSM-22, ISI-1, NU-10 and KZ-2) and at least one zeolite ZBM- Preferably synthesized in the presence of a particular structuring agent such as triethylenetetramine, at least one porous mineral matrix, at least one hydro-dehydrogenating element, of preference chosen from the elements of group VIB and group VIII of the periodic table.
- a hydrodewaxing catalyst catalytic comprising at least one zeolite (molecular sieve) chosen from the group formed by zeolites of structural type TON (The
- This operation can be carried out by extraction with solvents such as propane or methyl ethyl ketone, this is called propane or methyl dewaxing. ethyl ketone (MEK).
- solvents such as propane or methyl ethyl ketone
- MEK ethyl ketone
- Another means is the selective cracking of the longest linear paraffinic chains which leads to the formation of compounds of lower molecular weight, part of which can be removed by distillation.
- zeolites are among the most used catalysts.
- the idea which prevails in their use is that there are zeolitic structures whose pore openings are such that they allow the entry into their microporosity of long linear paraffins or very little branched but exclude branched paraffins, naphthenes and aromatics. This phenomenon thus leads to a selective cracking of linear or very poorly branched paraffins.
- Zeolite catalysts having intermediate pore sizes such as ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, ZSM-35 and ZSM-38 have been described for their use in these processes especially in US patents 3,894,938; US 4,176,050; US 4,181,598; US 4,222,855; US 4,229,282 and US 4,247,388.
- the applicant has focused its research efforts on the development of a process for improving the pour point of hydrocarbon feedstocks from the Fischer-Tropsch process using catalysts comprising at least one zeolite (molecular sieve) chosen from the group formed by zeolites of structural type TON (Theta-1, ZSM-22, ISI-1, NU-10 and KZ-2) and at least one zeolite chosen from the group formed by zeolites (ZSM-48 , EU-2, EU- 1 1 and ZBM-30), at least one hydro-dehydrogenating element, preferably chosen from the elements of group VIB and group VIII of the periodic table.
- zeolite molecular sieve
- a catalyst comprising at least one zeolite of structural type TON and at least one zeolite ZBM-30 preferably synthesized with a particular structuring agent such as triethylene tetramine makes it possible to lower the load pour point while obtaining a high viscosity index (VI) and maintaining a good yield of desired products.
- a particular structuring agent such as triethylene tetramine
- the present invention provides a catalytic process for reducing the pour point of charges from the Fischer-Tropsch process based on such catalysts.
- the invention relates to a process for improving the pour point of a paraffinic filler produced by Fischer-Tropsch synthesis, in which the filler to be treated is brought into contact with a catalyst comprising at least one zeolite (sieve molecular) chosen from the group formed by TON structural type zeolites (Theta-1, ZSM-22, ISI-1, NU-10 and KZ-2) and at least one zeolite ZBM-30 (synthesized with a particular structuring agent such as triethylenetetramine), at least one hydro-dehydrogenating element, preferably chosen from elements of group VIB and group VIII of the periodic table, at least one porous mineral matrix, the process is carried out at a temperature between 200 and 450 ° C, a pressure between 0.1 and 25 MPa and an hourly volume speed between 0.05 and 30 h "1 , in the presence of hydrogen at the rate of 50 to 2000 normal liters of hydrogen per liter of charge.
- zeolite sieve molecular
- zeolites included in the catalyst usable in the process according to the invention which are of structural type TON are described in the work "Atlas of Zeolite Structure Types", WM Meier, DH Oison and Ch. Baerlocher, 4th Revised edition, 1996, Elsevier.
- zeolite ZBM-30 The synthesis of the zeolite ZBM-30 is described in patent EP-A-46504. Unexpectedly, said catalyst exhibits an activity and a selectivity in dewaxing (improvement in the flow point of the charges resulting from the Fischer-Tropsch process) greater than the catalytic formulas based on zeolites (molecular sieve) known in the prior art.
- this process makes it possible to convert a charge having a high pour point into a product having a lower pour point, and makes it possible to obtain oil bases having good cold properties and a high viscosity index and gas oils. of good quality.
- the fillers which can be treated according to the process of the invention are advantageously fractions having relatively high pour points whose value it is desired to reduce.
- Typical fillers which can be advantageously treated according to the invention generally have a pour point above 0 ° C.
- the products resulting from the treatment according to the process have pour points of less than 0 ° C and preferably less than about -10 ° C.
- the process according to the invention allows, in particular, the production of products with a low pour point with good yields, and with a high viscosity index in the case of the heaviest fractions which are processed for the purpose of producing oil bases.
- the process according to the invention uses a catalyst which comprises at least one zeolite chosen from the group formed by zeolites of structural type TON and at least one zeolite ZBM-30 synthesized with a particular structuring agent such as triethylene tetramine, at least a hydro-dehydrogenating element, preferably chosen from elements of group VIB and group VIII of the periodic table and at least one porous mineral matrix.
- a catalyst which comprises at least one zeolite chosen from the group formed by zeolites of structural type TON and at least one zeolite ZBM-30 synthesized with a particular structuring agent such as triethylene tetramine, at least a hydro-dehydrogenating element, preferably chosen from elements of group VIB and group VIII of the periodic table and at least one porous mineral matrix.
- the zeolite of structural type TON entering into the composition of the catalyst is chosen from the group formed by the zeolites Theta-1, ISI-1, NU-10, KZ-2 and ZSM-22 described in the work "Atlas of Zeolite Structure Types ", WM Meier, DH Oison and Ch. Baerlocher, 4th Revised edition, 1996, Elsevier as well as in US patents 456,477 and US 4,902,406 with regard to the zeolite ZSM-22 and in patents EP-65400 and EP-77624 for the zeolite NU-10.
- the synthesis of the zeolite ZBM-30 is described in patent EP-A-46504.
- the NU-10 or ZSM-22 zeolites are used with ZBM-30.
- the ZBM-30 zeolite is preferably synthesized according to the methods described in patent EP-A-46504 according to the procedure using the structuring agent triethylenetetramine.
- the overall Si / Ai ratio of the zeolites used in the composition of the catalysts of the process according to the invention, as well as the chemical composition of the samples are determined by X-ray fluorescence and atomic absorption.
- Si / Ai ratios of the zeolites described above are those obtained on synthesis according to the procedures described in the various documents cited or obtained after post-synthesis dealumination treatments well known to those skilled in the art, such as hydrothermal treatments followed or not followed by acid attacks or even direct acid attacks by solutions of mineral or organic acids.
- the zeolites used in the composition of the catalysts of the process according to the invention can be calcined and exchanged by at least one treatment with a solution of at least one ammonium salt so as to obtain the ammonium form of the zeolites which once calcined leads to the hydrogen form of said zeolites.
- the zeolites used in the composition of the catalyst of the process according to the invention are at least partly, preferably practically completely, in acid form, that is to say in hydrogen form (H + ).
- the Na / T atomic ratio is generally less than 10% and preferably less than 5% and even more preferably less than 1%.
- the catalyst contains at least one hydro-dehydrogenating element, preferably chosen from elements of group VIB and group VIII (that is to say metal or compound) of the periodic table and at least one porous mineral matrix.
- the element is at least one metal from group VIII, preferably when it is at least one noble metal and advantageously a noble metal chosen from the group formed by platinum and palladium, it can be introduced onto zeolites, for example by dry impregnation, by ion exchange or any other method known to those skilled in the art, or it can be introduced onto the matrix.
- At least one of the zeolites previously described is subjected to the deposition of at least one metal from group VIII, preferably chosen from the group formed by platinum and palladium.
- the zeolites thus charged with metals are mixed.
- the mixing of these zeolites which are then in the powder state is carried out by all the powder mixing techniques known to those skilled in the art.
- the mixture is shaped by any technique known to those skilled in the art. It can in particular be mixed with a matrix, generally amorphous, for example with a wet powder of alumina gel. The mixture is then shaped, for example by extrusion through a die.
- the shaping can be carried out with matrices other than alumina, such as for example magnesia, amorphous silica-aluminas, natural clays (kaolin, bentonite, sepiolite, attapulgite), silica, oxide of titanium, boron oxide, zirconia, aluminum phosphates, titanium phosphates, zirconium phosphates, carbon and their mixtures. It is preferred to use matrices containing alumina, in all of its forms known to those skilled in the art, and even more preferably aluminas, for example gamma alumina. Other techniques than extrusion, such as pelletizing or coating, can be used.
- matrices other than alumina such as for example magnesia, amorphous silica-aluminas, natural clays (kaolin, bentonite, sepiolite, attapulgite), silica, oxide of titanium, boron oxide, zirconia, aluminum phosphates, titanium
- mixtures of alumina and silica mixtures of alumina and silica-alumina.
- the catalysts obtained are shaped in the form of grains of different shapes and dimensions. They are generally used in the form of extrudates cylindrical or multi-lobed such as two-lobed, three-lobed, multi-lobed in a straight or twisted shape, but can optionally be manufactured and used in the form of crushed powders, tablets, rings, balls, wheels. After the shaping step, the product obtained is subjected to a drying step and then to a calcination step.
- the hydrogenating metal belongs to group VIII, and preferably is platinum and / or palladium
- it can also and advantageously be deposited on the support after the shaping of the zeolites free of metals, by any known method of those skilled in the art and allowing the metal to be deposited on the molecular sieve.
- the support is obtained in a manner analogous to that described above.
- the term support will denote the mixture of zeolites (free of metals) plus matrix after shaping, drying and calcination, for example as previously obtained.
- the cation exchange technique with competition where the competitor is preferably ammonium nitrate, the competition ratio being at least equal to approximately 20 and advantageously from approximately 30 to 200
- the competitor is preferably ammonium nitrate
- a tetramine complex of platinum or a tetramine complex of palladium is usually used: the latter will then be deposited almost entirely on the zeolites.
- This cation exchange technique can also be used to deposit the metal directly on the molecular sieve powder, before possible mixing with a matrix.
- the deposition of the group VIII metal (or metals) is generally followed by calcination in air or oxygen, usually between 300 and 600 ° C for 0.5 to 10 hours, preferably between 350 ° C and 550 ° C for 1 to 4 hours.
- a reduction can then be carried out under hydrogen, generally at a temperature between 300 and 600 ° C for 1 to 10 hours, preferably one will operate between 350 ° and 550 ° C for 2 to 5 hours.
- Platinum and / or palladium can also be deposited no longer directly on the molecular sieves, but on the matrix (for example the aluminum binder) of the support, before or after the shaping step, by implementing an exchange anionic with hexachloroplatinic acid, hexachloropalladic acid and / or palladium chloride in the presence of a competing agent, for example hydrochloric acid.
- a competing agent for example hydrochloric acid.
- the catalyst is as previously subjected to calcination and then reduced under hydrogen as indicated above.
- the support of the catalytic dewaxing catalyst according to the present invention generally contains the following contents of matrix and zeolites: - 5 to 95% by weight, preferably 10 to 90% by weight, more preferably from 15 to 85% by weight and very preferred from 20 to 80% by weight of zeolites such that at least one zeolite is chosen from the group formed by zeolites of structural type TON such as Theta-1, ZSM-22, ISI-1, NU-10 and KZ-2 and at at least one zeolite is a ZBM-30 zeolite, - 5 to 95%, preferably 10 to 90%, more preferably 15 to 85% and very preferably 20 to 80% by weight of at least one matrix porous amorphous or poorly crystallized oxide type mineral,
- the distribution between the two zeolites of each of the groups defined above is such that the content of zeolite (s) chosen from the group formed by zeolites of structural type TON (Theta-1, ZSM-22, ISI-1, NU-10 and KZ-2) can vary from 1% to 99%, preferably from 5 to 95% and even more preferably can vary between 10 and 90% in relative percentages of all the zeolites introduced into the catalyst .
- the content of zeolite ZBM-30 varies from 1% to 99%, preferably from 5 to 95% and even more preferably varies between 10 and 90%, in relative percentages, of all the zeolites introduced into the catalyst.
- the content of noble metal (s) thus optionally introduced, expressed in% by weight relative to the total mass of the catalyst, is generally less than 5%, preferably less than 3%, even more preferably less than 2% and generally less than 1% by weight.
- the catalyst comprises a hydrogenating metal from group VIII, preferably a noble metal and advantageously platinum and / or palladium
- the catalyst is generally reduced in the reactor in the presence of hydrogen and under well known conditions.
- the hydrogenating metal is not a noble metal
- the elements of group VIB and of group VIII optionally introduced into the catalyst according to the invention may be present in whole or in part in the metallic form and / or oxide and / or sulfide.
- molybdenum and tungsten are preferred.
- the sources of the VIB group element which can be used are well known to those skilled in the art.
- oxides and hydroxides, molybdic and tungstic acids and their salts in particular ammonium salts such as ammonium molybdate, ammonium heptamolybdate, ammonium tungstate, phosphomolybdic acid, phosphotungstic acid and their salts.
- ammonium oxides and salts such as ammonium molybdate, ammonium heptamolybdate and ammonium tungstate
- the dewaxing catalyst according to the present invention may contain a non-noble metal from group VIII and preferably cobalt and nickel.
- a non-noble metal from group VIII preferably cobalt and nickel.
- the following combinations of elements from groups VI and VIII are used, which are non-noble: nickel-molybdenum, cobalt-molybdenum, iron-molybdenum, iron-tungsten, nickel-tungsten, cobalt-tungsten, the preferred associations are: nickel-molybdenum, nickel-tungsten. It is also possible to use combinations of three metals, for example nickel-cobalt-molybdenum.
- Group VIII elements which can be used are well known to those skilled in the art.
- nitrates, sulfates, phosphates, halides for example, chlorides, bromides and fluorides, carboxylates for example acetates and carbonates will be used.
- the composition of the support consisting of at least one matrix and the zeolites described in l invention is the same as described above and, the content by weight of the catalyst in at least one element chosen from elements of group VIB and of group VIII which are not noble is between 0.1 and 60%, preferably between 1 and 50% and even more preferably between 2 and 40%.
- the wet solid is left to stand under a humid atmosphere at a temperature between 10 and 80 ° C., then the wet solid obtained is dried at a temperature between 60 and 150 ° C., and finally the solid obtained is calcined at a temperature between 150 and 800 ° C., generally between 250 and 600 ° C.
- the catalysts of the process of the present invention can optionally be subjected to a sulphurization treatment making it possible to transform, at least in part, the metallic species into sulphide before they are brought into contact with the charge to be treated.
- This activation treatment by sulfurization is well known to those skilled in the art and can be carried out by any method already described in the literature.
- a conventional sulfurization method well known to those skilled in the art consists of heating in the presence or under flow of a hydrogen / hydrogen sulfide mixture or even under pure hydrogen sulfide, at a temperature comprised between 150 and 800 ° C, preferably between 250 and 600 ° C, generally in a crossed-bed reaction zone.
- hydrocarbon feedstocks treated according to the process of the invention are feedstocks produced by Fischer-Tropsch synthesis and advantageously fractions having relatively high pour points whose value it is desired to reduce.
- the synthesis gas (CO + H 2 ) is catalytically transformed into oxygenated products and essentially linear hydrocarbons in gaseous, liquid or solid form.
- oxygenated products are generally free from heteroatomic impurities such as, for example, sulfur, nitrogen or metals. They also contain practically little or no aromatics, naphthenes and more generally cycles, in particular in the case of cobalt catalysts.
- they can have a non-negligible content of oxygenated products which, expressed by weight of oxygen, is generally less than 5% by weight approximately and also a content of unsaturated (olefinic products in general) generally less than 10% by weight.
- Typical fillers which can be advantageously treated according to the invention generally have a pour point above 0 ° C.
- the products resulting from the treatment according to the process have pour points of less than 0 ° C and preferably less than about -10 ° C.
- the hydrocarbon feedstock coming into contact with the catalyst based on ZBM- 30 preferably at least 50% by weight of the feedstock at a temperature boiling point of at least 340 ° C, and even more preferably at least 60% by weight and better still at least 80% by weight of the feedstock at a boiling point of at least 340 ° C, preferably higher at least 370 ° C and even more preferably greater than at least 380 ° C.
- This does not mean, for example, that the boiling point is 380 ° C and above, but 380 ° C or above.
- the charge is therefore mainly composed of normal paraffins.
- fillers suitable for the oil objective have an initial boiling point greater than at least 340 ° C and better still greater than at least 370 ° C and more preferably greater than at least 380 ° C.
- the method according to the invention under the conditions described below allows, in particular, the production of products with a low pour point with good yields, and with a high viscosity index in the case of the heaviest fractions which are treated with the objective of producing oil bases.
- the reaction temperature is between 200 and 450 ° C and preferably between 200 and 420 ° C, preferably 250-410 ° C;
- the pressure is between 0.1 and 25 MPa and preferably between about 1 and 20 MPa;
- the hourly volume velocity (wh expressed in volume of charge injected per unit volume of catalyst and per hour) is between approximately 0.05 and approximately 30 and preferably between approximately 0.1 and approximately 20 h ⁇ 1 and again more preferred between about 0.1 and about 10 h -1.
- the rate of hydrogen used and expressed in liters of hydrogen per liter of charge is between 50 and about 2000 liters of hydrogen per liter of charge and preferably between 100 and 1500 liters of hydrogen per liter of charge.
- the catalytic dewaxing process according to the invention can be preceded by a hydroisomerization-hydroconversion step in the presence of a catalyst containing at least one noble metal deposited on an amorphous acid support.
- This hydroisomerization-hydroconversion step is optionally preceded by a hydrorefining step to remove the heteroatoms (oxygenated), this hydrorefining step can be followed by an intermediate separation.
- the hydroisomerization-hydroconversion stage takes place in the presence of hydrogen and in the presence of a bifunctional catalyst comprising an amorphous acid support (preferably an amorphous silica-alumina) and a hydro-dehydrogenating metal function provided by at least one metal.
- the support is said to be amorphous, that is to say devoid of molecular sieves, and in particular of zeolite, as well as the catalyst.
- the amorphous acid support is advantageously an amorphous silica-alumina but other supports can be used.
- the catalyst When it is a silica-alumina, the catalyst generally does not contain any added halogen, other than that which could be introduced for the impregnation, of the noble metal for example.
- the silica-alumina can be obtained by any synthesis technique known to those skilled in the art such as co-precipitation techniques, cogelling ...
- the molecules of the feedstock to be treated for example n-paraffins
- a bifunctional catalyst undergo isomerization then optionally hydrocracking to lead respectively to the formation of isoparaffins and lighter crackers such as gas oils and kerosene.
- the conversion of products having boiling points greater than or equal to the initial boiling point of the feed which is at least 340 ° C, even 370 ° C or even better at least 380 ° C, into products with boiling points lower than the initial boiling temperature of the charge generally varies between 5 and 90%, preferably between 5 and 80% but is generally preferably less than 80% and better still less than 60%.
- the preferred support used for the preparation of the pretreatment catalyst by hydroisomerization-hydroconversion described in the context of this patent is composed of silica SiO 2 and alumina AI 2 O 3 .
- the silica content of the support is generally between 1 and 95%, advantageously even between 5 and 95% and preferably between 10 and 80% and even more preferably between 20 and 70% and between 22 and 45%. This silica content is perfectly measured using X-ray fluorescence.
- the metallic function is provided by a noble metal from group VIII of the periodic table of the elements and more particularly platinum and / or palladium.
- the noble metal content, expressed in% weight of metal relative to the catalyst is between 0.05 to 10 and more preferably between 0.1 and 5.
- the preparation and the shaping of the support, and in particular of silica-alumina, is made by usual methods well known to those skilled in the art.
- the support may undergo calcination such as for example a heat treatment at 300-750 ° C (600 ° C preferred) for 0.25-10 hours (2 hours preferred) under 0 -30% water vapor volume (for 7.5% alumina silica preferred).
- the noble metal salt is introduced by one of the usual methods used to deposit the metal (preferably platinum and / or palladium, platinum being more preferred) on the surface of a support.
- One of the preferred methods is dry impregnation which consists in introducing the metal salt into a volume of solution which is equal to the pore volume of the mass of catalyst to be impregnated.
- the catalyst may undergo calcination, for example a treatment in dry air at 300-750 ° C (520 ° C preferred) for 0.25-10 hours (2 hours preferred).
- the metal contained in the catalyst Before use in the hydroisomerization-conversion reaction, the metal contained in the catalyst must be reduced.
- One of the preferred methods for carrying out the reduction of the metal is the treatment under hydrogen at a temperature between 150 ° C and 650 ° C and a total pressure between 0.1 and 25 MPa. For example, a reduction consists of a plateau at 150 ° C for 2 hours, then a rise in temperature to 450 ° C at the speed of 1 ° C / min then a plateau of 2 hours at 450 ° C; during this entire reduction step, the hydrogen flow rate is 1000 liters of hydrogen / liter of catalyst. Note also that any ex-situ reduction method is suitable.
- the pressure will be maintained between 2 and 25 MPa and preferably 3 to 20 MPa and advantageously from 2 to 18 MPa, the space speed will be between 0.1 h "1 and 10 h "' ', preferably between 0.2 and 10 h '1 is advantageously between 0.5 and 5.0 h "1 .
- hydrogen content is between 100 and 2000 liters of hydrogen per liter of charge and preferably between 150 and 1500 liters of hydrogen per liter of charge.
- the temperature used in this step is between 200 and 450 ° C and preferably from 250 ° C to 450 ° C advantageously from 300 to 450 ° C, and even more advantageously above 340 ° C, for example between 320-450 ° C .
- the two hydrorefining and hydroisomerization-conversion stages can be carried out on the two types of catalyst in different (two or more) reactors, and / or on at least two catalytic beds installed in the same reactor.
- the use of the catalyst described above in the hydroisomerization-hydroconversion stage has the effect of increasing the isomerization rate of the heavy fraction (340 ° C +, or even 370 ° C + and better still 380 ° C +) and decrease its pour point. More generally, it is found that the treatment of the hydroisomerization-hydroconversion stage then makes it possible to obtain better yields of the dewaxed oil fraction which will be obtained in the catalytic dewaxing step and to obtain the desired viscosimetric properties (viscosity and viscosity index VI).
- the effluent from the hydroisomerization-conversion step can be entirely treated in the dewaxing process according to the invention.
- This variant with passage through the catalytic dewaxing process of all the effluent from the hydroconversion-hydroisomerization stage, is economically advantageous, since a single distillation unit is used at the end of the process.
- a very cold diesel is obtained at the final distillation (after catalytic dewaxing or subsequent treatments).
- the effluent from the hydroisomerization-hydroconversion step may undergo separation of at least part (and preferably at least a major part) of light gases which include hydrogen and optionally also hydrocarbon compounds with at most 4 carbon atoms. Hydrogen can be separated beforehand.
- the effluent from the hydroisomerization-hydroconversion step is distilled so as to separate the light gases and also separate at least one residue containing the compounds with a boiling point greater than at least 340 ° C. It is preferably an atmospheric distillation.
- This fraction (residue) is then treated in the catalytic dewaxing step, that is to say without undergoing vacuum distillation.
- vacuum distillation can be used.
- middle distillates are called, the fraction (s) with an initial boiling point of at least 150 ° C and a final going up to the residue, i.e. generally up to 'at 340 ° C, 350 ° C or preferably less than 370 ° C or 380 ° C.
- the effluent from the hydroisomerization-hydroconversion stage can undergo, before or after distillation, other treatments such as for example an extraction of at least part of the aromatic compounds.
- At least part of the effluent from the hydroisomerization-hydroconversion step is subjected to the catalytic dewaxing process according to invention. Note that compounds boiling above at least 340 ° C are always subjected to catalytic dewaxing.
- the effluent leaving the catalytic hydrodewaxing process according to the invention is advantageously sent to the distillation train, which preferably includes atmospheric distillation and vacuum distillation, which aims to separate the point conversion products. boiling point below 340 ° C and preferably below 370 ° C, (and including in particular those formed during the hydrodewaxing step catalytic), and to separate the fraction which constitutes the oil base and whose initial boiling point is greater than at least 340 ° C and preferably greater than or equal to 370 ° C.
- this vacuum distillation section allows the different grades of oils to be separated.
- the effluent leaving the catalytic hydrodewaxing stage is, at least in part and preferably, in its entirety, sent to a hydrofinishing catalyst (hydrofinishing) in the presence of hydrogen so as to carry out a thorough hydrogenation of the aromatic compounds possibly still present which harm the stability of oils and distillates.
- a hydrofinishing catalyst hydrofinishing
- the acidity of the catalyst must be low enough not to lead to the formation of cracking product with a boiling point below 340 ° C. so as not to degrade the final yields, in particular of oils.
- the catalyst used in this hydrofinishing step comprises at least one metal from group VIII and / or at least one element from group VIB of the periodic table.
- metals are deposited and dispersed on a support of amorphous or crystalline oxide type, such as, for example, aluminas, silicas, silica-aluminas.
- the hydrofinishing catalyst (HDF) can also contain at least one element from group VII A of the periodic table.
- these catalysts contain fluorine and / or chlorine.
- the contents by weight of metals are between 10 and 30% in the case of non-noble metals and less than 2%, preferably between 0.1 and 1.5%, and even more preferably between 0.1 and 1.0% in the case of noble metals.
- the total amount of halogen is between 0.02 and 30% by weight, advantageously between 0.01 and 15%, or even more advantageously between 0.01 and 10%, preferably between 0.01 and 5%. Mention may be made, among the catalysts which can be used in this hydrofinishing step, and which lead to excellent performance, and in particular for obtaining medicinal oils, catalysts containing at least one noble metal from group VIII (platinum and VIII for example ) and at least one halogen (chlorine and / or fluorine), the combination of chlorine and fluorine being preferred.
- group VIII platinum and VIII for example
- halogen chlorine and / or fluorine
- the reaction temperature is between 180 and 400 ° C and preferably between 210 and 350 ° C, preferably 230-320 ° C;
- the pressure is between 0.1 and 25 MPa and preferably between 1.0 and 20 MPa;
- the hourly space velocity (wh expressed in volume of charge injected per unit volume of catalyst and per hour) is between approximately 0.05 and approximately 100 and preferably between approximately 0.1 and approximately 30 h "1 .
- the rate of hydrogen used and expressed in liters of hydrogen per liter of charge is between 50 and about 2000 liters of hydrogen per liter of charge and preferably between 100 and 1500 liters of hydrogen per liter of charge.
- the temperature of the hydrofinishing stage (HDF) is lower than the temperature of the catalytic hydrodewaxing stage (HDPC).
- the difference T HDPC - T HDF is generally between 20 and 200 ° C, and preferably between 30 and 100 ° C.
- the effluent leaving HDF is then sent to the distillation train.
- the base oils obtained have a pour point below -10 ° C, an VI greater than 95, preferably greater at 110 and even more preferably greater than 120, a viscosity of at least 3.0 cSt at 100 ° C., an ASTM color less than 1 and a UV stability such that the increase in ASTM color is between 0 and 4 and preferably between 0.5 and 2.5.
- Another advantage of this embodiment of the process according to the invention is that it is possible to achieve very low aromatic contents, less than 2% by weight, preferably less than 1% by weight and better still less than 0.05 % by weight and even go as far as the production of white oils of medicinal quality having aromatic contents of less than 0.01% by weight.
- These oils have UV absorbance values at 275, 295 and 300 nanometers respectively less than 0.8, 0.4 and 0.3 (ASTM D2008 method) and a Saybolt color between 0 and 30.
- White medical oils are mineral oils obtained by a refined refining of petroleum, their quality is subject to different regulations which aim to guarantee their safety for pharmaceutical applications, they are devoid of toxicity and are characterized by their density and viscosity.
- Medicinal white oils mainly contain saturated hydrocarbons, they are chemically inert and their aromatic hydrocarbon content is low. Particular attention is paid to aromatic compounds and in particular to 6 polycyclic aromatic hydrocarbons (PAH for the Anglo-Saxon abbreviation of polycyclic aromatic hydrocarbons) which are toxic and present at concentrations of one part per billion by weight of aromatic compounds in the white oil.
- PAH polycyclic aromatic hydrocarbons
- the total aromatics content can be checked by the ASTM D 2008 method, this UV adsorption test at 275, 292 and 300 nanometers makes it possible to control an absorbance less than 0.8, 0.4 and 0.3 respectively (that is to say that the white oils have aromatic contents of less than 0.01% by weight). These measurements are carried out with concentrations of 1 g of oil per liter, in a 1 cm tank.
- the white oils sold are differentiated by their viscosity but also by their crude origin which can be paraffinic or naphthenic, these two parameters will induce differences both in the physicochemical properties of the white oils considered but also in their chemical composition .
- the dewaxing process of the present invention is advantageously used in the sequence of following steps:
- the charge to be treated is separated (D1) into at least one light fraction 3 with a boiling point below 380 ° C, and at least one heavy fraction 4 (residue).
- said light fraction 3 optionally hydrogenated in a hydrotreatment step (HDT) is subjected to hydroisomerization (HISM)
- said heavy fraction 4 is subjected to a hydrocracking step (HCK) in the presence of hydrogen, then is subjected to a distillation (D2) to produce at least a light fraction (13) and at least a heavy fraction (10).
- the mixture resulting from hydroisomerization (HISM) is fractionated (D3) at the same time as at least part of the light fraction 13 originating from the distillation D2 in order to obtain middle distillates having excellent cold properties, and / or a high cetane number and / or a reduced emission of polluting agents, - the heavy fraction resulting from D2 is subjected to a dewaxing stage (DWX) to obtain, after separation of the volatile products formed, an isomerized liquid product usable as high quality lubricating base,
- DWX dewaxing stage
- a liquid stream 1 consisting of a mixture of linear hydrocarbons originating from a Fischer-Tropsch synthesis process, also comprising unsaturated products (linear olefins), in an amount ranging up to 10% by weight, preferably of 2 to 5% by weight and oxygenated (especially alcohols) in an amount up to 10% by weight, preferably 2 to 7% by weight, is separated in the distillation column D1 into a light fraction 3 with a boiling point below 380 ° C, preferably between 260 and 360 ° C and a heavy fraction 4, constituting the residue of the distillation.
- the distillation in D1 is preferably carried out in one single step (flash) and can be followed by a differential sampling of two fractions directly from the Fischer-Tropsch synthesis reactor.
- the mass ratio between the two fractions 3 and 4 is in the range from 0.5 to 2.0, even more preferably from 0.8 to 1.5.
- the light fraction 3 feeds a hydroisomerization unit (HISM).
- HISM hydroisomerization unit
- said fraction 3 preferentially feeds a hydrogenation unit ( HDT) in which it comes into contact with hydrogen (line 2) in the presence of a suitable catalyst, under conditions such as to minimize or even make the hydrocracking reaction absent.
- HDT hydrogenation unit
- the hydrogenation unit can be produced according to the usual techniques and preferably comprises a pressure reactor containing a fixed bed of catalyst selected to meet the specifications mentioned above.
- Typical hydrogenation catalysts suitable for the above specifications include a hydrogenating metal, such as nickel, platinum or palladium supported on an inert or acidic solid such as alumina, silica, silica-alumina, zeolite or molecular sieve. It is not excluded that during the hydrogenation also occurs a hydroisomerization reaction and a partial hydrocracking, generally limited to a conversion of less than 15% by weight of the total feed fraction.
- the small fraction of volatile compounds (150 ° C-) and the water possibly formed can optionally be separated by means of distillation.
- HISM hydroisomerization step
- the conditions suitable for isomerization are amply reported in the state of the art as well as an extensive list of usable catalysts.
- a portion normally less than 50%, preferably between 0 and 25%, of said light fraction may optionally be taken by means of line 7, before the isomerization step and mixed again with said heavy fraction of the line 4 to be sent to hydrocracking.
- the mixture of hydrocarbons is supplemented with hydrogen (line 5) in an amount between 150 and 1500 normal liters per liter of liquid and passes over a fixed bed of suitable catalyst, preferably based on metal. noble, with a space speed between 0.1 and 10 h-1 and a temperature between 300 and 450 ° C and a pressure between 1 and 10 MPa.
- the isomerized mixture is introduced via line 14 into a fractionation column D3 with the light fraction 13 coming from the column D2 for distillation of the heavy fraction sent to hydrocracking.
- a medium distillate is obtained in accordance with the embodiment, optionally taken at two different levels to separate the kerosene (line 17) from the diesel fuel (line 18), having excellent cold properties, a high index of cetane, preferably greater than 50 and a reduced emission of polluting agents.
- a gaseous fraction C1 -C5 relatively insignificant, normally by means of line 16, a fraction of light hydrocarbons, preferably having a boiling point below 150 ° C (naphtha).
- the amount of such volatile fractions is reduced significantly compared with analogous methods of the prior art, preferably less than 20%, more preferably less than 15% by weight relative to the initial feed of line 1.
- the fraction (line 4) of hydrocarbons with high boiling point and low content of oxygenated and unsaturated compounds is added with the necessary quantity of hydrogen ( line 8) and feeds a hydrocracking unit (HCK) produced by one of the usual techniques.
- the product obtained feeds, via line 9, a distillation and fractionation device, which preferably operates to obtain a separation of the mixture of hydrocarbons essentially into two fractions.
- Such a combination of the two currents, coming from the stages carried out on the initial feed and under different, but complementary, conditions advantageously makes it possible to obtain kerosene and diesel fractions with the excellent properties mentioned above.
- a portion, preferably less than 50% by weight, of the mixture resulting from the distillation D2 is introduced via line 19 at the entry of the isomerization stage (HISM) in order to further increase the grade and distribution of the isomerized fractions and to regulate the relative amount of diesel and kerosene produced.
- the residual fraction from distillation D2 consists of a mixture of hydrocarbons with high boiling point having, surprisingly, a reduced content of waxes, compared to the products obtained with other catalysts of the prior art under conditions like.
- Such a residue can also be used as such for particular uses, but preferably comes to feed (line 10) a catalytic dewaxing or dewaxing (DWX) stage prior to its use as a lubricant base. According to a preferred mode, this is partly recycled in the hydrocracking step (HCK) by means of line 12 in order to regulate the productivity of the process or to vary the degree of isomerization according to the requirements of production.
- Said dewaxing step (DWX) is carried out according to the method of the present invention in the presence of a catalyst adapted to the desired objective. The partially isomerized mixture still reacts in the presence of hydrogen and a suitable solid catalyst as described above, under the conditions of the process according to the invention.
- the dewaxing step according to the method of the present embodiment can be carried out under conditions of contact time and yield in particularly favorable lubricant base.
- the volatile products formed are separated (generally less than 3% by weight), an isomerized liquid product is recovered (line 11), with excellent cold properties and a high viscosity, having an initial boiling point greater than 350 ° C, preferably greater than 360 ° C which has an optimal composition for use as a high quality lubricant base.
- Example 1 Preparation of a C1 dewaxing catalyst according to the invention
- the catalyst C1 comprises a zeolite ZSM-22 and a zeolite ZBM-30. This catalyst is obtained according to the procedure described below.
- the ZSM-22 zeolite is obtained according to the mode of synthesis described in the article of Applied Catalysis, 1989, 48, page 137 and the ZBM-30 zeolite is synthesized according to BASF patent EP-A-46504 with the organic structuring agent triethylenetetramine.
- the synthetic ZSM-22 and ZBM-30 zeolites are subjected to calcination at 550 ° C. under a flow of dry air for 12 hours. Then the solid ZSM-22 obtained is subjected to 4 successive ionic exchanges in a solution of NH4NO 3 10N, at approximately 100 ° C. for 4 hours for each exchange.
- the H-ZBM-30 zeolite (acid form) thus obtained has an Si / Al ratio of 45 and an Na / Al ratio of less than 0.001.
- H-ZSM-22 zeolite in powder form are mixed with 70 grams of H-ZBM-30 zeolite.
- the mixture of the two zeolites is kneaded with an alumina gel of type SB3 (supplied by the company Condisputeda) previously peptized with an aqueous solution containing nitric acid at 68% by weight and kneaded for 15 minutes.
- the kneaded paste (alumina gel + zeolites) is then extruded through a die with a diameter of 1.4 mm.
- the extrudates thus obtained are calcined at 500 ° C for 2 hours in air.
- the content by weight of ZSM-22 zeolite in the support extrudates is 24% and that of the H-ZBM-30 zeolite is 56%, ie an overall zeolite content of 80% by weight.
- the support extrudates are subjected to a dry impregnation step with an aqueous solution of platinum salt Pt (NH3) 42 +, 2OH-, then calcined in dry air at 550 ° C.
- platinum content by weight of the catalyst C1 thus obtained is 0.48%.
- the catalytic test unit comprises a fixed-bed reactor, with upward flow of charge ("up-flow"), into which 80 ml of catalyst C1 is introduced.
- the catalyst is then subjected to an atmosphere of pure hydrogen at a pressure of 10 MPa in order to ensure the reduction of the platinum oxide to metallic platinum, then the charge is finally injected.
- the total pressure is 10 MPa
- the hydrogen flow rate is 1000 liters of gaseous hydrogen per liter of charge injected
- the hourly volume speed is 1.1 h ⁇ 1
- the reaction temperature is 340 ° C.
- the effluents are divided into light products (PI-150 ° C gasoline), middle distillates (150-370 ° C) and residue (370 + ° C).
- the catalyst for pretreatment step C2 is prepared from a silica-alumina support used in the form of extrudates. It contains 40% by weight of silica SiO 2 and 60% by weight of alumina AI 2 O 3 .
- the silica-alumina before addition of the noble metal has an area of 332 m2 / g and its total pore volume is 0.82 ml / g.
- Catalyst C2 is obtained after impregnation of the noble metal on the support.
- the platinum salt H 2 PtCI 6 is dissolved in a volume of solution corresponding to the total pore volume to be impregnated.
- the solid is then calcined for 2 hours in air at 500 ° C.
- the platinum content is 0.48% by weight.
- the BET surface area is equal to 310 m 2 / g.
- the dispersion of platinum measured by H- / O 2 titration is 75
- the C3 hydrodewaxing catalyst comprises a ZSM-22 zeolite and a ZBM-30 zeolite. This catalyst is obtained according to the procedure described below.
- the ZSM-22 zeolite is obtained according to the mode of synthesis described in described in the article of Applied Catalysis, 1989, 48, page 137 and the ZBM-30 zeolite is synthesized according to BASF patent EP-A-46504 with the organic structuring agent. triethylenetetramine.
- the raw synthetic ZSM-22 and ZBM-30 zeolites are subjected to calcination at 550 ° C. under dry air flow for 12 hours. Then the solid ZSM-22 obtained is subjected to 4 successive ionic exchanges in a solution of NH4N03 10N, at approximately 100 ° C for 4 hours for each exchange.
- the H-ZBM-30 zeolite (acid form) thus obtained has an Si / Al ratio of 45 and an Na / Al ratio of less than 0.001.
- H-ZSM-22 zeolite in powder form are mixed with 70 grams of H-ZBM-30 zeolite.
- the mixture of the two zeolites is kneaded with an alumina gel of type SB3 (supplied by the company Condisputeda) previously peptized with an aqueous solution containing nitric acid at 68% by weight and kneaded for 15 minutes.
- the kneaded paste (alumina gel + zeolites) is then extruded through a die with a diameter of 1.4 mm.
- the extrudates thus obtained are calcined at 500 ° C for 2 hours in air.
- the content by weight of ZSM-22 zeolite in the support extrudates is 24% and that of the H-ZBM-30 zeolite is 56%, ie an overall zeolite content of 80% by weight.
- the support extrudates are subjected to a dry impregnation step with an aqueous solution of platinum salt Pt (NH3) 42 +, 20H-, then calcined in dry air at 550 ° C.
- platinum content by weight of the catalyst C2 thus obtained is 0.51%.
- the catalyst (C2) is used to knead a charge of paraffins from the Fischer-Tropsch synthesis for the purpose to get oils.
- the paraffinic filler used in this example is the same as that used and described in example 2.
- the catalytic test unit comprises a fixed bed reactor, with upward flow of charge ("up-flow"), into which 80 ml of catalyst C2 is introduced.
- the catalyst is then subjected to an atmosphere of pure hydrogen at a pressure of 10 MPa in order to ensure the reduction of the platinum oxide to metallic platinum, then the charge is finally injected.
- the total pressure is 10 MPa
- the hydrogen flow rate is 1000 liters of gaseous hydrogen per liter of charge injected
- the hourly volume speed is 1.0 h -1 and the reaction temperature of 350 ° C.
- the effluents are divided into light products (PI-150 ° C gasoline), middle distillates (150-370 ° C) and residue (370 + ° C).
- the residue (370 + ° C) is then treated, in order to reduce its pour point, in a second reactor with upward flow of charge ("up-flow"), into which 80 ml of catalyst C3 is introduced.
- the catalyst is then subjected to an atmosphere of pure hydrogen at a pressure of 10 MPa in order to ensure the reduction of the platinum oxide to metallic platinum, then the charge is finally injected.
- the total pressure is 10 MPa
- the hydrogen flow rate is 1000 liters of gaseous hydrogen per liter of charge injected
- the hourly volume speed is 1.0 h -1
- the reaction temperature of 330 ° C After reaction, the effluents are divided into light products (petrol Pl- 150 ° C), middle distillates (150-370 ° C) and oil fraction (370 + ° C.) The characteristics of the oil obtained are measured.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (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)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112004001058T DE112004001058B4 (de) | 2003-07-03 | 2004-07-02 | Verfahren zur Verbesserung des Stockpunktes von Kohlenwasserstoffbeschickungen aus dem Fischer-Tropsch Verfahren, das einen Katalysator auf Basis eines Zeolithgemischs verwendet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR03/08153 | 2003-07-03 | ||
| FR0308153A FR2857020B1 (fr) | 2003-07-03 | 2003-07-03 | Procede d'amelioration du point d'ecoulement de charges hydrocarbonees issues du procede fischer-tropsch, utilisant un catalyseur a base d'un melange de zeolithes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005012461A1 true WO2005012461A1 (fr) | 2005-02-10 |
Family
ID=33522750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2004/001715 Ceased WO2005012461A1 (fr) | 2003-07-03 | 2004-07-02 | Procede d'amelioration du point d'ecoulement de charges hydrocarbonees issues du procede fischer-tropsch utilisant un catalyseur a base d'un melange de zeolithes |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE112004001058B4 (fr) |
| FR (1) | FR2857020B1 (fr) |
| IT (1) | ITMI20041313A1 (fr) |
| RU (1) | RU2346977C2 (fr) |
| WO (1) | WO2005012461A1 (fr) |
| ZA (1) | ZA200509837B (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8940253B2 (en) | 2012-03-29 | 2015-01-27 | Uop Llc | Process and apparatus for producing diesel from a hydrocarbon stream |
| US8871082B2 (en) * | 2012-03-29 | 2014-10-28 | Uop Llc | Process and apparatus for producing diesel from a hydrocarbon stream |
| CA2877172A1 (fr) * | 2012-06-28 | 2014-01-03 | Shell Internationale Research Maatschappij B.V. | Procede de preparation d'une fraction gazole et d'une huile de base residuelle |
| RU2490307C1 (ru) * | 2012-10-01 | 2013-08-20 | Андрей Владиславович Курочкин | Способ переработки нефти |
| RU2515938C1 (ru) * | 2013-04-24 | 2014-05-20 | Андрей Владиславович Курочкин | Способ переработки нефти |
| WO2015080611A1 (fr) | 2013-11-26 | 2015-06-04 | Infra XTL Technology Limited | Catalyseur pour diriger la production d'huile synthétique riche en isoparaffines et procédé de préparation du catalyseur |
| CN108816279B (zh) * | 2018-05-23 | 2021-03-16 | 中国中化股份有限公司 | 一种正构烷烃临氢异构化催化剂的制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0046504A1 (fr) * | 1980-08-21 | 1982-03-03 | BASF Aktiengesellschaft | Zéolite métalsilicate cristalline ZBM-30 et procédé pour sa préparation |
| WO2001064339A1 (fr) * | 2000-03-02 | 2001-09-07 | Institut Francais Du Petrole | Catalyseur a base de zeolithe zsm-48 et procede pour l'amelioration du point d'ecoulement de charges paraffiniques |
| WO2002048290A1 (fr) * | 2000-12-15 | 2002-06-20 | Institut Francais Du Petrole | Procede flexible ameliore de production de bases huiles et de distillats par une conversion-hydroisomerisation sur un catalyseur faiblement disperse suivie d'un deparaffinage catalytique |
| WO2002048289A1 (fr) * | 2000-12-15 | 2002-06-20 | Institut Francais Du Petrole | Procede flexible ameliore de production de bases huiles et distillats moyens avec une conversion-hydroisomerisation suivie d'un deparaffinage catalytique |
| US20020189972A1 (en) * | 2000-04-21 | 2002-12-19 | Eric Benazzi | Flexible method for producing oil bases with a zsm-48 zeolite |
-
2003
- 2003-07-03 FR FR0308153A patent/FR2857020B1/fr not_active Expired - Lifetime
-
2004
- 2004-06-30 IT ITMI20041313 patent/ITMI20041313A1/it unknown
- 2004-07-02 RU RU2006103076/04A patent/RU2346977C2/ru not_active IP Right Cessation
- 2004-07-02 WO PCT/FR2004/001715 patent/WO2005012461A1/fr not_active Ceased
- 2004-07-02 DE DE112004001058T patent/DE112004001058B4/de not_active Expired - Fee Related
-
2005
- 2005-12-05 ZA ZA200509837A patent/ZA200509837B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0046504A1 (fr) * | 1980-08-21 | 1982-03-03 | BASF Aktiengesellschaft | Zéolite métalsilicate cristalline ZBM-30 et procédé pour sa préparation |
| WO2001064339A1 (fr) * | 2000-03-02 | 2001-09-07 | Institut Francais Du Petrole | Catalyseur a base de zeolithe zsm-48 et procede pour l'amelioration du point d'ecoulement de charges paraffiniques |
| US20020189972A1 (en) * | 2000-04-21 | 2002-12-19 | Eric Benazzi | Flexible method for producing oil bases with a zsm-48 zeolite |
| WO2002048290A1 (fr) * | 2000-12-15 | 2002-06-20 | Institut Francais Du Petrole | Procede flexible ameliore de production de bases huiles et de distillats par une conversion-hydroisomerisation sur un catalyseur faiblement disperse suivie d'un deparaffinage catalytique |
| WO2002048289A1 (fr) * | 2000-12-15 | 2002-06-20 | Institut Francais Du Petrole | Procede flexible ameliore de production de bases huiles et distillats moyens avec une conversion-hydroisomerisation suivie d'un deparaffinage catalytique |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2857020B1 (fr) | 2007-08-17 |
| ITMI20041313A1 (it) | 2004-09-30 |
| DE112004001058T5 (de) | 2006-04-27 |
| RU2006103076A (ru) | 2006-06-10 |
| RU2346977C2 (ru) | 2009-02-20 |
| FR2857020A1 (fr) | 2005-01-07 |
| DE112004001058B4 (de) | 2009-04-23 |
| ZA200509837B (en) | 2007-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1278812B1 (fr) | Procede flexible de production de bases huiles avec une zeolithe zsm-48 | |
| EP1412458B1 (fr) | Procede flexible ameliore de production de bases huiles et distillats moyens avec une conversion-hydroisomerisation suivie d'un deparaffinage catalytique | |
| EP1346010B2 (fr) | Procede flexible ameliore de production de bases huiles et de distillats par une conversion-hydroisomerisation sur un catalyseur faiblement disperse suivie d'un deparaffinage catalytique | |
| WO2009103881A2 (fr) | Procédé multietapes de production de distillats moyens par hydroisomerisation et hydrocraquage d'un effluent produit par le procédé fischer-tropsch | |
| FR2792851A1 (fr) | Catalyseur a base de metal noble faiblement disperse et son utilisation pour la conversion de charges hydrocarbonees | |
| EP1462168B1 (fr) | Catalyseur et son utilistion pour l'amélioration du point d'écoulement de charges hydrocarbonnées | |
| WO2009106704A2 (fr) | Procede de production de distillats moyens par hydroisomerisation et hydrocraquage sequences d'un effluent produit par le procede fischer-tropsch | |
| EP1157084B1 (fr) | Procede flexible de production d'huiles medicinales et eventuellement de distillats moyens | |
| FR2989381A1 (fr) | Production de distillats moyens a partir d'un effluent issu de la synthese fischer-tropsch comprenant une etape de reduction de la teneur en composes oxygenes | |
| WO2005012461A1 (fr) | Procede d'amelioration du point d'ecoulement de charges hydrocarbonees issues du procede fischer-tropsch utilisant un catalyseur a base d'un melange de zeolithes | |
| FR2805543A1 (fr) | Procede flexible de production de bases huiles et distillats moyens avec une conversion-hydroisomerisation suivie d'un deparaffinage catalytique | |
| FR2805542A1 (fr) | Procede flexible de production de bases huiles et de distillats par une conversion-hydroisomerisation sur un catalyseur faiblement disperse suivie d'un deparaffinage catalytique | |
| EP1462166B1 (fr) | Catalyseur et son utilisation pour l'amélioration du point d'écoulement de charges hydrocarbonnées | |
| WO2005012460A1 (fr) | Procede d'amelioration du point d'ecoulement de charges hydrocarbonees issues du procede fischer-tropsch, utilisant un catalyseur a base de zeolithe zbm-30 | |
| WO2011045484A1 (fr) | Procede de production de distillat moyen a partir de cires fischer tropsch utilisant un catalyseur a base de zeolithe modifiee | |
| FR2950896A1 (fr) | Procede de production de distillats moyens par hydroisomerisation et hydrocraquage de charges issues du procede fischer-tropsch mettant en oeuvre un catalyseur a base de carbure de silicium | |
| FR2792946A1 (fr) | Procede de production de bases huiles et de distillats moyens a partir de charges hydrocarbonees par une conversion-hydroisomerisation sur un catalyseur faiblement disperse suivie d'un deparaffinage catalytique | |
| WO2026068282A1 (fr) | Procédé amélioré de production de kérosène à partir d'hydrocarbures de synthèse en série avec gestion des gaz de recycle | |
| FR2792945A1 (fr) | Procede de production de bases huiles et distillats moyens avec une conversion-hydroisomerisation suivie d'un deparaffinage catalytique | |
| WO2025132835A1 (fr) | Procédé amélioré pour la production de distillats moyens à partir d'hydrocarbures synthétiques en série à faible conversion par passage | |
| FR2738243A1 (fr) | Procede d'hydroisomerisation de paraffines longues lineaires et/ou peu ramifiees avec un catalyseur a base de zeolithe nu-10 | |
| FR2989380A1 (fr) | Procede optimise de production de distillats moyens a partir d'une charge issue du procede fischer-tropsch contenant une quantite limitee de composes oxygenes | |
| FR2797270A1 (fr) | Procede et flexible de production de bases huiles et eventuellement de distillats moyens de tres haute qualite | |
| FR2785617A1 (fr) | Procede flexible de production de bases huiles et eventuellement de distillats moyens de tres haute qualite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: DZP2005000465 Country of ref document: DZ Ref document number: DZP2004000465 Country of ref document: DZ |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2005/09837 Country of ref document: ZA Ref document number: 200509837 Country of ref document: ZA |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2006103076 Country of ref document: RU |
|
| RET | De translation (de og part 6b) |
Ref document number: 112004001058 Country of ref document: DE Date of ref document: 20060427 Kind code of ref document: P |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 112004001058 Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |
|
| DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) |

