EP1931751A1 - Procede de desulfuration des essences comportant une desulfuration par adsorption de la fraction legere et une hydrodesulfuration de la fraction lourde - Google Patents
Procede de desulfuration des essences comportant une desulfuration par adsorption de la fraction legere et une hydrodesulfuration de la fraction lourdeInfo
- Publication number
- EP1931751A1 EP1931751A1 EP06794276A EP06794276A EP1931751A1 EP 1931751 A1 EP1931751 A1 EP 1931751A1 EP 06794276 A EP06794276 A EP 06794276A EP 06794276 A EP06794276 A EP 06794276A EP 1931751 A1 EP1931751 A1 EP 1931751A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gasoline
- fraction
- producing
- adsorption
- heavy
- 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
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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
- C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
- C10G25/12—Recovery of used adsorbent
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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
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
-
- 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
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
- C10G67/16—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural parallel stages only
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1088—Olefins
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/30—Physical properties of feedstocks or products
- C10G2300/301—Boiling range
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/30—Physical properties of feedstocks or products
- C10G2300/305—Octane number, e.g. motor octane number [MON], research octane number [RON]
Definitions
- PROCESS FOR THE DESULFURATION OF SPECIES COMPRISING ADSORPTION DEULFURIZATION OF LIGHT FRACTION AND HYDRODESULFURATION OF HEAVY FRACTION
- the present invention relates to a process for producing gasoline with a low sulfur content and high octane number from an initial gasoline comprising olefins and thiophene-type sulfur compounds.
- the gasoline concerned by the invention is a catalytic cracking gasoline, but it can also be a gasoline resulting from a conversion process such as coking, or even from a straight-run gasoline, or from even more generally, of any mixture of the said essences.
- the present method therefore finds particular application in the desulfurization of gasolines resulting from a catalytic cracking process, fluid catalytic cracking, coking, visbreaking, or pyrolysis.
- the present process should be considered as an improvement of the application FR 2 857 973.
- the improvement described in the present invention compared to the patent application FR 2 857 973 consists in using a flow internal to the process for regenerating the adsorbent solid used to desulfurize the light fraction by adsorption.
- Flow internal process means a flow generated by one of the units forming part of the process object of the invention.
- Patent application FR 2 857 973 describes such a process in which the gasoline to be treated is divided into a light fraction sent to an adsorption desulphurization unit, and a heavy fraction sent to a traditional hydrodesulfurization unit.
- the application WO 02/36718 proposes to separate the essence of FCC into a light part rich in olefins and comprising only sulfur compounds of the mercaptan type, and a heavy part which concentrates thiophene and its derivatives (grouped under the term thiophene compounds), and the heaviest sulfur compounds.
- the mercaptans present in the light fraction are then removed by a process using an extractive solution of sodium hydroxide.
- the heavy fraction is desulphurized by a conventional hydrodesulphurization process.
- the cutting point of the two fractions is, however, relatively low (below 75 ° C. in the abovementioned application), which limits the interest of such a process, the light fraction comprising a reduced portion of the hydrocarbons contained in the initial gasoline. .
- US Pat. No. 6,482,316 B1 proposes to desulphurize by adsorption a gasoline whose boiling temperature is between 10 ° C. and 150 ° C., and to regenerate the adsorbent solid used by a refinery fluid whose boiling point is located in the same temperature range.
- the patent in question specifies in a dependent claim that the preferred flow for effecting said regeneration is a reformate, therefore a flow rich in aromatics, distillation interval typically between 10 ° C and 150 0 C.
- the process which is the subject of the present invention is optionally capable of treating a gasoline whose boiling point is between 25 ° C. and 300 ° C.
- the said gasoline is separated by distillation into a light gasoline and a heavy gasoline.
- the light fraction is desulfurized in an adsorption desulfurization unit, and the heavy fraction is desulphurized in a hydrodesulphurization unit.
- Regeneration of the adsorbent used to desulphurize the light cut is done with a fraction of the heavy desulphurized cup whose final boiling point can be up to 300 ° C.
- This fraction of the heavy desulfurized fraction contains aromatics but is distinct from a reformate by its distillation range.
- the regeneration of the sulfur-polluted reformate is generally carried out by hydrotreatment, but this generates an imbalance in the flows of the refinery that can be expensive and also leads to a decrease in the amount of reformate available for use in eg petrochemicals.
- Figure 1 shows a diagram of the method according to the invention in which is represented in dashed optional unit EO.
- the present invention relates to a process for the desulphurization of a gasoline containing sulfur and unsaturated compounds, generally a catalytic cracking gasoline, comprising at least one separation unit of said gasoline into a light fraction and a heavy fraction, a desulphurization unit by adsorption of said light fraction, and a hydrodesulfurization unit of said heavy fraction, the process being characterized in that the regeneration of the adsorbent solid used in the desulfurization unit by adsorption of the light fraction, is carried out through a portion of said heavy fraction desulphurized, that is to say after its desulfurization in the hydrodesulfurization unit.
- the process according to the invention is a process for producing a high octane desulfurized gasoline from an initial gasoline comprising olefins and thiophene compounds, the process comprising the following steps: a step of distilling the initial gasoline in at least two fractions including: a light fraction containing the majority of the olefins with 5 and 6 carbon atoms, as well as thiophene, and preferably methylthiophenes,
- a heavy fraction containing no more olefins with 5 carbon atoms containing no more olefins with 5 carbon atoms, and concentrating the heavy sulfur compounds such as benzothiophenes.
- a step of desulfurizing said light fraction by adsorption of the sulfur compounds on an adsorbent solid the adsorbent solid used being chosen from the group consisting of silicas, aluminas, zeolites, activated carbons, resins, clays , metal oxides and reduced metals
- a step of hydrodesulfurization of said heavy fraction on a catalyst containing at least one Group VIII metal and a Group VIb metal under conventional hydrodesulfurization conditions, the regeneration of the adsorbent solid being carried out by means of a desorption solvent which is a part of the effluent of the hydrodesulfurization step of the heavy fraction, and the complementary part of the effluent of said hydrodesulphurization step being mixed with the effluent of the desulfurization step
- the present process provides both better adsorption selectivity to the thiophene compounds present in the initial charge, reduced hydrogen consumption, and furthermore achieves future sulfur standards in gasolines.
- the method according to the invention makes it possible to recover a characteristic gasoline very similar to that of the gasoline to be treated with a desulfurization rate which is at least 50%, and preferably at least 80%.
- the process according to the invention does not disturb the refining scheme, and even applies to refineries that do not have a petrol reforming unit.
- the present invention makes it possible to carry out the desulphurization of said hydrocarbon fraction by minimizing the loss of octane by hydrogenation of the olefins since this octane loss is especially sensitive on the heavy fraction of the gasoline to be treated. light fraction being desulphurized by adsorption, thus preserving the octane number.
- the octane number of the gasoline produced is very little affected by the process, and is less than 10% less than the octane number of the gasoline to be treated, and the most often less than 5% less than the octane number of the gasoline to be treated.
- mode I the essence is split into two fractions:
- the light fraction usually has a final point between about 90 ° C to about 200 ° C, preferably between about 9O 0 C and about 160 ° C, very preferably between about 90 0 C and 110 0 C.
- This separation is conventionally carried out by means of a distillation column.
- the essence is distilled into three fractions: a light fraction comprising the compounds contained in the initial gasoline whose boiling point is below the boiling point thiophene, an intermediate fraction comprising at least thiophene, and whose final boiling point is between about 90 ° C. and about 200 ° C., preferably between about 90 ° C. and about 160 ° C., so that very preferred between about 90 0 C and about 110 0 C. - a heavy fraction concentrating heavy sulfur compounds such as benzothiophenes.
- the cutting point of the distillation for splitting the gasoline to be treated in two or three fractions is chosen according to the composition of the initial gasoline to be treated and / or depending on the concentration of aromatic hydrocarbons present in the light fraction. (mode I), or in the intermediate fraction (mode II) after fractionation.
- the efficiency of the desulfurization is better if the weight percentage of aromatic compounds in said light fraction is less than 25%, and preferably less than 10%, and so still preferred less than 5%.
- the cutting point of the light fraction will be chosen according to the composition of the gasoline to be treated so as to have a weight percentage of aromatic compounds present in said light fraction less than 25%, preferably less than 10%, and more preferably less than 5%.
- Stage of adsorption / desorption of the light fraction f step b) This step consists in eliminating the sulfur compounds present in the light fraction (mode I) or in the intermediate fraction (mode II) resulting from stage a).
- said fractions have previously been depleted of mercaptan type compounds, for example by a selective hydrogenation step as described below.
- This adsorption step is carried out by contacting the feedstock to be treated with an adsorbent solid having a high affinity with the sulfur compounds, preferably the thiophene compounds.
- the solids used as adsorbent can be selected from the following families of adsorbents; silicas, aluminas, zeolites, preferably faujasites, and preferably faujasites partially exchanged with cesium, activated carbons, resins, clays, metal oxides, reduced metals.
- an adsorbent solid having an increased adsorption capacity towards sulfur compounds by appropriate physical surface treatments, for example temperature treatments, or chemical surface treatments, for example the grafting of molecules. specific surface.
- solids whose residual acidity is controlled in order to avoid any coking reaction of the olefins likely to cause rapid aging of the solid used.
- Regeneration of the adsorbent solid will be via adsorption / regeneration cycles known per se to those skilled in the art.
- the experimental conditions of the adsorption and the regeneration will be selected so as to maximize the dynamic capacity of the solid, ie the difference between the quantity of sulfur captured during the adsorption and the quantity of sulfur remaining on the solid after regeneration.
- Regeneration of the adsorbent solid is done using a regeneration fluid or solvent having a sufficiently high desorption power.
- the regeneration solvent is chosen to replace the gasoline retained in the pores of the adsorbent solid, then to cause the desorption of the other compounds retained on the solid, in particular sulfur compounds.
- the regeneration solvent will comprise at least a portion of aromatic compounds. Said part of aromatic compounds will be at least 10% by weight, and preferably at least 25% by weight.
- the regeneration solvent is furthermore characterized by a sulfur content lower than the sulfur content of the desulfurized gasoline by adsorption.
- the sulfur content of the regeneration solvent is less than 100 ppm, preferably less than 50 ppm, and very preferably less than 20 ppm.
- a portion of the heavy fraction resulting from the separation of the gasoline to be treated into two fractions according to step a), the said heavy fraction having been desulfurized, will preferably be used as regeneration solvent of the adsorbent solid.
- the regeneration solvent according to the invention is therefore a part of the heavy desulfurized fraction, said part being calculated to allow optimum regeneration of the adsorbent solid.
- the regeneration effluent containing the sulfur molecules initially retained on the adsorbent solid is recycled to the inlet of the hydrodesulfurization unit of the heavy fraction.
- Hydrosulphurization step of the heavy fraction (step c):
- the heavy fraction resulting from step a) of distillation of the gasoline to be treated is subjected to a hydrodesulfurization treatment.
- This step can be carried out by passing gasoline, in the presence of hydrogen, over a catalyst comprising at least one element of group VIII selected from the group consisting of iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium or platinum, and at least one group VIB element selected from the group consisting of chromium, molybdenum and tungsten, each of which is at least partly in the form of sulphide.
- the hourly space velocity is between about 1 hr -1 and 20 hr -1 .
- the ratio of the hydrogen flow rate to the feed rate is between 100 liters / liter and 600 liters / liter, expressed as normal liters of hydrogen per liter of gasoline.
- the catalyst used to carry out the hydrodesulfurization of the heavy fraction comprises between
- the content by weight of Group VIB metal is generally between 1.5% and 60% by weight and preferably between 2% and 50% by weight.
- the element of group VIII is preferably cobalt, and the element of group VIB is preferably molybdenum or tungsten.
- the catalyst support is usually a porous solid, such as, for example, magnesia, silica, titanium oxide or alumina, alone or as a mixture.
- the effluent from hydrodesulphurization step c) is mixed with the adsorption effluent of step b) to form the high octane desulfurized gasoline.
- the sulfur content of said gasoline resulting from the process is reduced by at least 50% and preferably by at least 80% relative to the starting gasoline.
- This hydrodesulphurization step c) may further comprise a step of finishing the hydrodesulfurization carried out on a catalyst comprising at least one element of the group
- the metal content of the catalyst of the finishing step is generally from about 1% to about 60% by weight as oxide. This finishing step makes it possible to eliminate the residual sulfur compounds, and mainly the saturated sulfur compounds which will have been formed during the first hydrodesulfurization step.
- the temperature of the finishing step is generally between 240 ° C. and 36 ° C., and is preferably at least 10 ° C. higher than the inlet temperature of the hydrodesulfurization step.
- the pressure is between about 1 MPa and 5 MPa.
- the hourly space velocity is between about 1 hr -1 and 20 hr -1 .
- the ratio of the hydrogen flow rate on the feed rate is between 100 liters / liter and 600 liters / liter, expressed in normal liters of hydrogen. per liter of gasoline
- This optional step, implemented upstream of steps a), b), c), is intended to at least partially remove the diolefins present in the gasoline, and to convert the light sulfur compounds by weighting.
- Diolefins are in fact precursors of gums which polymerize in hydrodesulphurization or adsorption reactors, especially when the adsorbent solid has an acidity, and thus limit its shelf life. The diolefms are thus hydrogenated to olefins during this step.
- This step also makes it possible to convert light sulfur compounds, such as mercaptans, sulphides and CS2, whose boiling point is generally lower than that of thiophene, into heavier sulfur compounds whose boiling point is greater than that of thiophene. by reaction with the olefins present in the feed.
- light sulfur compounds such as mercaptans, sulphides and CS2
- a majority of said heavy compounds thus formed will be discharged into the heavy fraction after fractionation (step a).
- the selective hydrogenation step generally takes place in the presence of a catalyst comprising at least one Group VIII metal, preferably selected from the group consisting of platinum, palladium and nickel, deposited on a support.
- a catalyst comprising at least one Group VIII metal, preferably selected from the group consisting of platinum, palladium and nickel, deposited on a support.
- a catalyst containing from 1% to 20% by weight of nickel deposited on an inert support such as, for example, alumina, silica, silica-alumina or a nickel aluminate, will be used.
- the support will contain at least 50% alumina.
- Another Group VIB metal such as, for example, molybdenum or tungsten may optionally be combined with the Group VIII metal to form a bimetallic catalyst. This group VIB metal will be deposited at a level of 1% by weight at 20% by weight on the support. The choice of the operating conditions of the selective hydrogenation step is particularly important.
- the operation will generally be carried out under pressure in the presence of a quantity of hydrogen in small excess relative to the stoichiometric value necessary for hydrogenating the diolefins.
- the hydrogen and the feedstock to be treated are injected in ascending or descending streams into a reactor preferably with a fixed bed of catalyst.
- the temperature is generally between 50 ° C. and 300 ° C., preferably between 80 ° C. and 25 ° C., and more preferably between 120 ° C. and 210 ° C.
- the pressure is chosen to maintain more than 80%, and preferably more than 95% by weight of the gasoline to be treated in the liquid phase in the reactor. It is most generally from 0.4 MPa to 5 MPa, and preferably from 1 MPa to 4 MPa.
- the space velocity is generally between 1 h "1 and 12 h" 1, preferably between 2 h! "And 1O h" 1.
- the light fraction of the catalytic cracking gasoline fraction may contain up to a few% by weight of diolefins. After hydrogenation, the diolefins content is reduced to less than 3000 ppm, preferably less than 2500 ppm, and very preferably less than 1500 ppm.
- the selective hydrogenation step takes place in a catalytic hydrogenation reactor comprising a catalytic reaction zone traversed by the entire charge and the quantity of hydrogen necessary to effect the desired reactions. .
- the gasoline to be treated from a catalytic cracking unit (not shown in FIG. 1) is in certain cases sent via line 1 to a selective hydrogenation reactor EO, mixed with a flow of a gas comprising hydrogen (not shown in Figure 1).
- the effluent from the reactor EO is sent via line 2 to a distillation column El which produces a light fraction at the top evacuated via the line (4), and a heavy fraction at the bottom discharged via the line (3).
- the heavy fraction (3) from the distillation column E1 is mixed with the desorption solvent (8) of the adsorption desulfurization unit (Ad) in the desorption phase to form the charge (3a).
- the charge (3a) resulting from the mixing of the lines (3) and (8) is introduced into the hydrodesulfurization reactor E4.
- the effluent (5 a) of the hydrodesulphurization reactor E4 is separated into a part (7) which is used for the regeneration of the adsorption desulphurization unit (Ad), and a complementary part (5) which is mixed with the effluent (6) of the adsorption desulfurization unit (Ad) in the adsorption phase to form the desulphurized gasoline (9) which is directed to the gasoline pool.
- the light fraction recovered by the line (4) is sent to the desulfurization unit (Ad).
- the adsorption desulphurization unit (Ad) comprises at least two capacities alternately working in adsorption, in Figure 1 the capacity (E2) and in desorption, in Figure 1 the capacity (E3). After a certain time the capacitance (E2) switches to the regeneration phase and the capacitance (E3) switches to the adsorption phase.
- the switchover from the adsorption phase to the regeneration phase is done through additional lines and valve opening and closing systems not shown in FIG. 1.
- the capacitor E3 is supplied with desorption solvent by the line (7) consisting of a fraction of the desulfurization effluent from the hydrodesulfurization unit E4.
- a representative gasoline I of a catalytic cracking gasoline is synthesized by taking up the proportions of paraffins (n-heptane, isooctane), olefins (1-hexene, 1-dodecene), aromatic compounds (toluene, metaxylene) and of sulfur compounds (thiophene, benzothiophene) usually encountered in a cracking gasoline.
- Table 1 gives the characteristics of gasoline I.
- a gasoline III reproducing the proportions of paraffins (iso octane), olefins (1-dodecene), aromatic compounds (metaxylene) and sulfur compounds (benzothiophene) of the heavy fraction obtained after fractionation at 90 ° C. essence I was synthesized. Table 3 gives the characteristics of this species III.
- Table 3 An IV gasoline reproducing the proportions of paraffins (isooctane), olefins (1-dodecene), aromatic compounds (metaxylene) obtained by hydrodesulfurization of gasoline III was synthesized. Table 4 gives the characteristics of this species IV.
- Synthetic essence II representing the light fraction to desulfurize by adsorption is sent using a liquid pump on an adsorption column filled with an adsorbent NaCsX type.
- This NaCsX solid is obtained by ion exchange carried out dynamically on a NaX zeolite with an aqueous solution of CsCl concentrated to 1.8 moles / liter at a temperature of 90 ° C.
- the adsorption column contains 20 ml of adsorbent solid, and it has been possible to desulphurize at least 100 ml of gasoline II with a sulfur content of less than 5 ppmS.
- the regeneration of the adsorbent solid is carried out by passing the synthetic essence IV at a temperature of 60 ° C. in the adsorption column.
- the sulfur concentration at the output increases sharply at first, then returns to values close to 0 ppm S after the passage of 100 ml of this charge, which indicates the end of the desorption step.
- This example demonstrates the capacity of the desulphurized heavy fraction (represented by the synthetic gasoline IV) derived from the gasoline to be desulphurized (represented by the synthetic gasoline I) to desorb the sulfur contained in the adsorbent solid after the desulfurization step. by adsorption of the light fraction represented by the synthetic essence IL
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0508474A FR2889539B1 (fr) | 2005-08-08 | 2005-08-08 | Procede de desulfuration des essences comportant une desulfuration par adsorption de la fraction legere et une hydrodesulfuration de la fraction lourde |
PCT/FR2006/001885 WO2007017581A1 (fr) | 2005-08-08 | 2006-08-02 | Procede de desulfuration des essences comportant une desulfuration par adsorption de la fraction legere et une hydrodesulfuration de la fraction lourde |
Publications (2)
Publication Number | Publication Date |
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EP1931751A1 true EP1931751A1 (fr) | 2008-06-18 |
EP1931751B1 EP1931751B1 (fr) | 2017-06-28 |
Family
ID=36685887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP06794276.3A Not-in-force EP1931751B1 (fr) | 2005-08-08 | 2006-08-02 | Procede de desulfuration des essences comportant une desulfuration par adsorption de la fraction legere et une hydrodesulfuration de la fraction lourde |
Country Status (8)
Country | Link |
---|---|
US (1) | US7731836B2 (fr) |
EP (1) | EP1931751B1 (fr) |
JP (1) | JP5000654B2 (fr) |
KR (1) | KR101320813B1 (fr) |
CN (2) | CN101283074A (fr) |
BR (1) | BRPI0614337B1 (fr) |
FR (1) | FR2889539B1 (fr) |
WO (1) | WO2007017581A1 (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101412735B1 (ko) * | 2006-01-30 | 2014-07-01 | 어드밴스드 테크놀러지 머티리얼즈, 인코포레이티드 | 유체 저장/분배, 탈황, 및 적외선 복사 방출에 유용한 탄소질 재료, 이를 이용하는 장치 및 방법 |
US7901565B2 (en) * | 2006-07-11 | 2011-03-08 | Basf Corporation | Reforming sulfur-containing hydrocarbons using a sulfur resistant catalyst |
CN101294108B (zh) * | 2007-04-28 | 2010-09-22 | 中国石油化工股份有限公司 | 一种催化裂化产物分离与加氢精制的组合方法 |
FR2937045B1 (fr) | 2008-10-10 | 2012-11-30 | Inst Francais Du Petrole | Mise en oeuvre de solides a base de ferrite de zinc dans un procede de desulfuration profonde de charges oxygenees |
CN102286293B (zh) * | 2010-06-18 | 2014-04-30 | 中国石油化工股份有限公司 | 一种页岩油加工方法 |
US8741127B2 (en) | 2010-12-14 | 2014-06-03 | Saudi Arabian Oil Company | Integrated desulfurization and denitrification process including mild hydrotreating and oxidation of aromatic-rich hydrotreated products |
US8741128B2 (en) | 2010-12-15 | 2014-06-03 | Saudi Arabian Oil Company | Integrated desulfurization and denitrification process including mild hydrotreating of aromatic-lean fraction and oxidation of aromatic-rich fraction |
US8679231B2 (en) | 2011-01-19 | 2014-03-25 | Advanced Technology Materials, Inc. | PVDF pyrolyzate adsorbent and gas storage and dispensing system utilizing same |
CN102839021A (zh) * | 2011-06-22 | 2012-12-26 | 北京金伟晖工程技术有限公司 | 一种低成本制造低硫高辛烷值汽油的装置及其方法 |
CN102851069B (zh) * | 2011-06-29 | 2014-12-31 | 中国石油化工股份有限公司 | 一种汽油脱硫的方法 |
CN103827268B (zh) | 2011-07-29 | 2016-05-18 | 沙特阿拉伯石油公司 | 选择性中间馏分加氢处理方法 |
FR2988398B1 (fr) * | 2012-03-26 | 2015-12-11 | Axens | Procede de purification d'une charge d'hydrocarbures |
CN103773432B (zh) * | 2012-10-24 | 2015-11-25 | 中国石油化工股份有限公司 | 一种汽油脱硫方法 |
CN103773431B (zh) * | 2012-10-24 | 2016-01-20 | 中国石油化工股份有限公司 | 一种汽油脱硫方法 |
CN103571536B (zh) * | 2013-09-17 | 2014-07-30 | 中国石油大学(华东) | 催化裂化与加氢生产清洁汽油并增产丙烯的装置及方法 |
US9683183B2 (en) | 2015-02-04 | 2017-06-20 | China University of Petroleum—Beijing | Method for deep desulfurization of gasoline |
WO2016123861A1 (fr) * | 2015-02-04 | 2016-08-11 | 中国石油大学(北京) | Procédé de valorisation d'essence de craquage catalytique |
CN104673378B (zh) * | 2015-02-04 | 2016-08-17 | 中国石油大学(北京) | 一种脱硫汽油的生产方法 |
WO2016123860A1 (fr) * | 2015-02-04 | 2016-08-11 | 中国石油大学(北京) | Procédé de désulfuration en profondeur d'essence |
CN104673379B (zh) * | 2015-02-04 | 2016-08-24 | 中国石油大学(北京) | 一种汽油深度脱硫方法 |
CN110157494A (zh) * | 2018-03-27 | 2019-08-23 | 北京欧美中科学技术研究院 | 一种生物柴油脱硫新方法 |
US11186782B2 (en) * | 2019-01-08 | 2021-11-30 | Evonik Operations Gmbh | Catalyst and process for removing mercaptans from hydrocarbon streams |
CN112708461B (zh) | 2019-10-24 | 2022-06-24 | 中国石油化工股份有限公司 | 一种多产丙烯和低硫燃料油组分的方法 |
CN112708460A (zh) | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | 生产低碳烯烃和低硫燃料油组分的方法 |
CN111408355B (zh) * | 2020-03-27 | 2023-01-17 | 河北科技大学 | 一种树脂基吸附剂及其制备方法和应用 |
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US5011805A (en) * | 1988-12-13 | 1991-04-30 | Mobil Oil Corporation | Dehydrogenation, dehydrocyclization and reforming catalyst |
US6482316B1 (en) * | 1999-06-11 | 2002-11-19 | Exxonmobil Research And Engineering Company | Adsorption process for producing ultra low hydrocarbon streams |
US7052598B2 (en) * | 2001-03-12 | 2006-05-30 | Institut Francais Du Petrole | Process for the production of gasoline with a low sulfur content comprising a hydrogenation, a fractionation, a stage for transformation of sulfur-containing compounds and a desulfurization |
FR2857973B1 (fr) * | 2003-07-25 | 2008-02-22 | Inst Francais Du Petrole | Procede de desulfuration des essences par adsorption |
FR2857974B1 (fr) * | 2003-07-25 | 2008-01-18 | Inst Francais Du Petrole | Procede de desulfuration d'une charge d'hydrocarbures par adsorption/desorption |
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- 2006-08-02 CN CNA2006800374200A patent/CN101283074A/zh active Pending
- 2006-08-02 WO PCT/FR2006/001885 patent/WO2007017581A1/fr active Application Filing
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KR20080038208A (ko) | 2008-05-02 |
EP1931751B1 (fr) | 2017-06-28 |
CN105199776A (zh) | 2015-12-30 |
JP2009504829A (ja) | 2009-02-05 |
FR2889539B1 (fr) | 2011-05-13 |
JP5000654B2 (ja) | 2012-08-15 |
CN101283074A (zh) | 2008-10-08 |
WO2007017581A1 (fr) | 2007-02-15 |
BRPI0614337B1 (pt) | 2016-04-05 |
US20070261993A1 (en) | 2007-11-15 |
BRPI0614337A2 (pt) | 2011-03-22 |
US7731836B2 (en) | 2010-06-08 |
KR101320813B1 (ko) | 2013-10-21 |
FR2889539A1 (fr) | 2007-02-09 |
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