EP1893727A2 - Procede d'hydrocraquage doux incluant une dilution de la charge - Google Patents
Procede d'hydrocraquage doux incluant une dilution de la chargeInfo
- Publication number
- EP1893727A2 EP1893727A2 EP06764709A EP06764709A EP1893727A2 EP 1893727 A2 EP1893727 A2 EP 1893727A2 EP 06764709 A EP06764709 A EP 06764709A EP 06764709 A EP06764709 A EP 06764709A EP 1893727 A2 EP1893727 A2 EP 1893727A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- fraction
- weight
- charge
- vacuum
- 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
- C10G69/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process
- C10G69/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only
- C10G69/04—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process plural serial stages only including at least one step of catalytic cracking in the absence of hydrogen
-
- 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
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
- C10G11/18—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised-bed" technique
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
Definitions
- the present invention is in the technical field of cracking hydrocarbon feeds. More particularly, the invention relates to a process in which a vacuum distillate cut or a deasphalted oil or a mixture of these two fractions is diluted by a lighter cut, for example of diesel type, before its mild hydrocracking treatment. , this mild hydrocracking step being prior to treatment with FCC.
- Mild hydrocracking is a particularly useful application in FCC pretreatment. It is well known that the sulfur content in FCC species as well as the NO x and SO x emissions are significantly reduced when hydrotreating is implemented upstream of the FCC.
- US Pat. No. 6,248,230 proposes to eliminate the polar natural compounds from a hydrocarbon fraction whose distillation range is in the range 110 ° C. to 560 ° C., before the catalytic treatment, these compounds having an effect harmful to the desulfurization reactions.
- the techniques used for their removal are adsorption and solvent extraction.
- Patent FR 2 864 103 of the Applicant describes a process in which the hydrocarbon feedstock, at least 80% of the compounds of which have a boiling point greater than or equal to 34O 0 C, is subjected to a selective extraction of the resins, prior to cracking of this charge.
- the resins have a polar character and consist mainly of condensed naphtheno-aromatic compounds, compounds containing sulfur, nitrogen, oxygen, and possibly metals such as nickel and vanadium.
- the patent application FR 2 830 870 of the applicant discloses an improved hydrocracking process in one step, hydrocarbon feeds containing high levels of nitrogen.
- the improvement relates to the implementation of a partial separation of the ammonia, for example by hot flash, between the hydrorefining zone and the hydrocracking zone.
- the harmful compound is nitrogen and it is removed in the gas phase in the form of ammonia, which allows operating under less severe conditions at the second reactor.
- the prior art thus essentially discloses processes for which the compounds which are harmful to the hydrodesulphurization reaction are extracted beforehand from the reaction zone by a physical separation mode, for example by adsorption, by solvent extraction or by flash. These methods are expensive since they require specific equipment.
- the inventors have therefore sought a more economical method.
- the invention describes a process for pre-treating FCC by mild hydrocracking of a hydrocarbon feedstock comprising a vacuum distillate cutter or a deasphalted oil or a mixture of these two fractions to produce gas oil and an effluent having a initial boiling point greater than 320 0 C, said effluent (FCC feedstock) being then catalytically cracked.
- the feedstock also comprises a lighter cut of hydrocarbons, said so-called lighter load being defined in that at least 50% by weight is below 375 ° C and at least 80% by weight above 200 ° C in the sense simulated distillation according to ASTM D2887.
- a very interesting charge is a diesel-type charge having a temperature T 5 of between 190 and 210 ° C (that is to say for which 5% by weight of said charge boils below this temperature), and a temperature T 95 included between 380 and 420 0 C (ie for which 95% weight of said filler boils below this temperature).
- the vacuum distillate cut is a vacuum distillate obtained from the direct distillation of the crude or from a conversion process such as coking, visbreaking, FCC, the Hyvahl process of the applicant, or any mixture of the effluents of the processes. previously mentioned. The list above is not exhaustive.
- the deasphalted oil comes from a deasphalting unit. Most often, the residue of the vacuum distillation (vacuum residue) is deasphalted, and said deasphalted residue is the deasphalted oil.
- the vacuum distillate cut or the deasphalted oil, or else a mixture of these two fractions is used in the composition of the so-called main filler for which at least 85% by weight is above 375 ° C., preferably at least 90%. . At least 95% by weight of said feedstock is below 650 ° C. in the sense of the simulated distillation ASTM D2887.
- the sulfur content of the main filler is generally between 0.3% and 4% by weight and preferably between 0.4% and 3.5% by weight.
- the total nitrogen content of the main filler is generally between 400 and 5000 ppm and preferably between 500 and 4000 ppm by weight.
- the basic nitrogen content of the main filler is generally between 200 and 2000 ppm and preferably between 250 and 1500 ppm by weight.
- the aromatic content of the main filler is generally between 10 and 90% by weight and preferably between 40 and 80% by weight.
- the hydrogen content of the main filler is generally between 10 and 14% by weight and preferably between 10.5 and 13% by weight.
- the lighter cut referred to as the secondary charge, is defined in that at least 50% by weight of said cut is below 375 ° C. and at least 80% of said cut ends above 200 ° C.
- the lighter cut is a diesel cut.
- the sulfur content of the secondary charge is generally between 0.05 and 3.0% by weight and preferably between 0.1 and 2.0% by weight.
- the total nitrogen content of the secondary charge is generally between 10 and 2000 ppm and preferably between 10 and 400 ppm by weight.
- the basic nitrogen content of the secondary charge is generally between 5 and 1000 ppm and preferably between 10 and 200 ppm by weight.
- the aromatic content of the secondary charge is generally between 10 and 90% by weight and preferably between 15 and 40% by weight.
- the secondary charge may advantageously be a fraction of the gas oil obtained during the atmospheric distillation from which the vacuum distillate is obtained, a fraction of the gas oil produced by the catalytic cracking unit (LCC gasoil fraction of the FCC) or any other diesel fuel cut from a conversion process, for example a coking, conversion process fixed-bed or bubbling-bed residue, hydrophilic distillation of distillates under vacuum in a fixed bed or bubbling bed, as well as any mixture of the preceding cuts.
- the gas oil fraction consists of the heavy fraction of the straight-run gas oil.
- the lighter cut, or secondary load constitutes up to 50% by weight of the total charge composed of the main charge and the secondary charge, preferably 5% to 50% by weight, and more preferably from 5% to 40%. weight.
- Said lighter cut is preferably free of dissolved hydrogen gas.
- the total charge resulting from the combination of the two fillers contains between 0.15 and 4.0% by weight of sulfur, preferably between 0.25 and 3.5% by weight; between 200 and 4000 ppm by weight of total nitrogen, preferably between 250 and 2000 ppm by weight; between 100 and 2000 ppm by weight of basic nitrogen, preferably between 150 and 1500 ppm by weight and between 10 and 90% by weight of aromatics, preferably between 25 and 80% by weight.
- the dilution carried out upstream of the FCC pretreatment process has the effect of lowering the concentration of inhibitory compounds of the hydrotreatment reactions (hydrodesulfurization, hydrodenitrogenation, aromatics hydrogenation, cracking), such as nitrogen, nitrogen basic, and, the aromatics of the main charge.
- inhibitory compounds of the hydrotreatment reactions such as nitrogen, nitrogen basic, and, the aromatics of the main charge.
- Some compounds with a character Basic eg basic nitrogen
- acidic catalysts such as silica-aluminas or zeolites.
- Dilution also has the effect of reducing the concentration of reagents, ie sulfur, nitrogen, aromatics and the crackable fraction of the feedstock, eg compounds boiling above 375 ° C.
- reagents ie sulfur, nitrogen, aromatics
- the effect of the decrease in reagents is to reduce the rate of hydrotreatment reactions.
- the positive effect of the deconcentration of the inhibiting compounds on the reaction speed, induced by the dilution, is preponderant compared to the negative effect of the deconcentration of the reagents.
- Another advantage of the process is to improve the properties of the diesel fuel leaving the FCC pretreatment process (after a gas oil / fuel gas separation step).
- FCC further in terms of sulfur content, density (measured at 15 ° C) and cetane number.
- the diesel fuel leaving the FCC pretreatment process has the following characteristics: D 15 : 0.875-0.890; sulfur content: 50-500 ppm weight; cetane number: 32-40.
- the addition of the secondary charge to the main charge also has consequences on the contact time of the total charge with the catalyst.
- several possibilities can be envisaged, for example keeping the same total charge rate or keeping the same DSV flow rate.
- the hydraulic flow is kept constant, which means that the charge / catalyst contact time is also kept constant, while in the second case, the contact time is decreased proportionally to the dilution factor.
- It usually operates at an absolute pressure of 2 to 12 MPa 5 often from 2 to 10 MPa and usually from 4 to 9 MPa or 3 to 7 MPa at a temperature between 300 and 500 ° C, and preferably between 350 and 450 ° C.
- the hourly space velocity (VVH) and the hydrogen partial pressure are chosen according to the characteristics of the batch to be treated and the desired conversion. Most often, the LHSV is in a range from 0.1 to 10 h -1, and preferably from about 0.2 hr "1 to about 5 h -1.
- the total blended amount of hydrogen to the charge is usually from about 100 to about 5000 Nm 3 of hydrogen per m 3 of liquid feed and most often from 100 to 2000 Nm 3 Year 3 . Generally, it is at least 200 Nm 3 / m 3 and preferably 200 to 1500 Nm 3 / m 3 .
- the net conversion to products boiling below 375 ° C. is generally between 5 and 50% by weight, advantageously between 10 and 45% by weight.
- the effluent from the mild hydrocracking process is separated into a gas oil fraction for which the distillation range is between 130 and 39O 0 C, and a fraction having an initial boiling point above 320 0 C treated downstream. by the FCC process. It is also obtained, during the separation, further fractions essences.
- the fraction of the mild hydrocracking effluent having an initial boiling point greater than 320 ° C. contains less than 0.25% by weight of sulfur, and preferably less than 0.15%.
- the fraction having an initial boiling point above 320 ° C. is treated downstream by the FCC process but it could also, for example, be sent to the fuel oil pole to produce a very low-grade fuel oil. in sulfur.
- a conventional hydroconversion catalyst comprising, on an amorphous support, at least one metal or metal compound having a hydro-dehydrogenating function.
- This catalyst may be a catalyst comprising Group VIII metals, for example nickel and / or cobalt, most often in combination with at least one Group VIB metal, for example molybdenum and / or tungsten.
- Group VIII metals for example nickel and / or cobalt
- at least one Group VIB metal for example molybdenum and / or tungsten.
- a catalyst comprising from 0.5 to 10% by weight of nickel (expressed as nickel oxide NiO) and from 1 to 30% by weight of molybdenum, preferably from 5 to 20% by weight of molybdenum (expressed as molybdenum oxide). MoO 3 ) on an amorphous mineral support.
- the total content of metal oxides of groups VI and VIII in the catalyst is generally between 5 and 40% by weight and preferably between 7 and 30% by weight.
- the weight ratio (based on metal oxides) between Group VI metal (metals) and Group VIII metal (metals) is, in general, from about 20 to about 1, and most often from about 10 to about 2.
- the support will, for example, be selected from the group consisting of alumina, silica, silica-aluminas, magnesia, clays and mixtures of at least two of these minerals. This support may also contain other compounds and, for example, oxides chosen from boron oxide, zirconia, titanium oxide and phosphoric anhydride. Most often, an alumina support is used and preferably ⁇ or ⁇ alumina.
- the catalyst may also contain a promoter element such as phosphorus and / or boron. This element may have been introduced into the matrix or preferably deposited on the support. Silicon may also be deposited on the support, alone or with phosphorus and / or boron.
- the catalysts contain silicon deposited on a support such as alumina, optionally with phosphorus and / or boron deposited on the support, and also containing at least one metal of group VIII (Ni, Co ) and at least one Group VIB metal (Mo 5 W).
- the concentration of said element is usually less than about 20% by weight (on the oxide base) and most often less than about 10%.
- the concentration of boron trioxide (B 2 O 3 ) is usually from about 0 to about 10% by weight.
- Another catalyst is a silica-alumina comprising at least one Group VIII metal and at least one Group VIB metal.
- Another type of usable catalyst is a catalyst containing at least one matrix, at least one zeolite Y and at least one hydro-dehydrogenating metal.
- the matrices, metals, additional elements previously described may also be included in the composition of this catalyst.
- Certain compounds having a basic character are well known to significantly reduce the cracking activity of acidic catalysts such as silica-aluminas or zeolites. The more the catalyst will have a pronounced acid character (silica-alumina, even zeoh ' the), plus the decrease in the concentration of basic compounds by dilution will have a beneficial effect on the mild hydrocracking reaction.
- the invention also relates to an installation that can be used to implement the method according to the invention, that is to say to carry out a method for pre-treating an FCC charge.
- a vacuum distillate is treated, without mixing with deasphalted oil.
- This installation includes, in general:
- a mild hydrocracking zone (7) containing a catalyst and provided with a pipe (5) for the introduction of hydrogen, a pipe (6) for the introduction of the main charge which is a distillate under vacuum and / or a deasphalted oil and of which 85% by weight at least end above 375 ° C, and a pipe for the introduction of a load, said secondary, at least 50% weight end below 375 ° C and at least 80% weight above 200 ° C, and a pipe (8) for discharging the effluent,
- a separation zone (9) provided with a conduit for the introduction of said effment and at least one pipe (20) for the evacuation of a cup having an initial boiling point greater than 320 ° C, and a pipe (10) for separating a fraction whose boiling range is between 130 and 390 0 C 5
- a catalytic cracking zone provided with a pipe (20) for introducing said initial boiling point cut of greater than 320 ° C, of at least one pipe (31) for the output of a light catalytic cracked gas oil (LCO) and from least one line (32) for the output of a heavy catalytic cracked diesel (HCO).
- LCO light catalytic cracked gas oil
- HCO heavy catalytic cracked diesel
- an LCO cut that may possibly be used in the composition of the secondary filler by a recycle line
- an HCO cut a gasoline fraction and a slurry fraction.
- this installation generally comprises:
- an atmospheric distillation column (2) of a crude oil provided with a pipe (1) for the introduction of a crude oil, at least one pipe for the withdrawal of a diesel fraction and a pipe (3) for withdrawing the atmospheric residue,
- a vacuum distillation column (4) provided with a pipe (3) for introducing said atmospheric residue and at least one pipe (6) for withdrawing a vacuum distillate and a pipe ( 11) for the withdrawal of the residue under vacuum, optionally, a deasphalting unit (28) provided with a pipe (11a) for the introduction of at least a portion of the residue under vacuum, a pipe (33) which introduces the deasphalted oil obtained in the zone (7) of mild hydrocracking and a pipe (34) for the outlet of the asphalt,
- a mild hydrocracking zone (7) containing a catalyst and provided with a pipe (5) for the introduction of hydrogen, a pipe (6) for the introduction of the main charge which is a distillate under vacuum and / or a deasphalted oil, of which at least 85% by weight is above 375 ° C, and a pipe for the introduction of a so-called secondary charge, at least 50% by weight of which is less than 375 ° C and at least 80% weight above 200 ° C, and a pipe (8) for discharging the effluent,
- a separation zone (9) provided with a pipe for the introduction of said effluent and at least one pipe (20) for discharging a section having an initial boiling point greater than 320 ° C., and a line (10) for separating a section whose distillation range is between 130 and 390 ° C.
- Figure 1 depicts an embodiment of the invention. This embodiment is given by way of example and is not limiting in nature.
- This embodiment further comprises the general characteristics mentioned above: a pipe (13) for the evacuation of said separated diesel in the atmospheric column
- distillation zone (14) provided with a pipe (17) for evacuating a light fraction of diesel fuel and also a pipe (15) for discharging a heavy fraction of diesel fuel,
- the crude oil is sent via a conduit (1) to an atmospheric distillation column (2). From this distillation column, a diesel fuel cut is withdrawn via a pipe (13) and an atmospheric residue via a pipe (3).
- the vacuum residue is sent to a vacuum distillation (4), the vacuum residue is extracted through a conduit (11) feeding a conversion process (12), for example a coker.
- the distillate of the vacuum distillation (4) is withdrawn through a conduit (6) and sent to a mild hydrocracking process (7), supplied with hydrogen via a conduit (5).
- duct (6) is also introduced, through a pipe (16), a fraction of a heavy diesel cut representing 5 to 50% of the total charge passing through the conduit (6).
- this section is extracted by the line (15) of a distillation zone (14) supplied via line (13) by a diesel fuel cutoff from the atmospheric distillation column (2).
- the remainder of the heavy diesel cut not passing through the pipe (16) is sent through a pipe (18), mixed in a pipe (17), with the light gas oil fraction from the distillation zone (14).
- the fluid mixture of the lines (17) and (18) is sent to a hydrotreatment (not shown in FIG. 1) in order to bring the diesel to specification.
- the effluent (8) of the mild hydrocracking process (7) is, after various separation steps represented by the block (9) for separating a gas oil fraction whose distillation is between 130 and 39O 0 C 5 extracted by a conduit (10), and a fraction extracted by a conduit (20) having an initial boiling point greater than 320 0 C may advantageously constitute the charge of the FCC process represented by the block (30).
- FIG. 1 depicts another embodiment of the invention.
- the installation includes:
- the vacuum distillate cut and / or the deasphalted oil come from an atmospheric distillation of a crude oil, making it possible to separate at least one light gasoil fraction, a heavy gasoil fraction and an atmospheric residue, the residue being distilled under vacuum to produce at least one vacuum distillate and a vacuum residue.
- At least a portion of said heavy gas oil fraction is introduced (secondary charge) into the main feed treated with mild hydrocracking.
- a portion of the heavy diesel cut is introduced into the main charge, the other portion being mixed with the light fuel cut.
- Crude oil is sent through a conduit (1) into an atmospheric distillation column
- the residue is sent to a vacuum distillation (4) whose vacuum residue is extracted via a conduit (11) feeding a conversion process (12), for example a coker.
- the distillate of the vacuum distillation (4) is withdrawn through a conduit (6) and sent to a mild hydrocracking process (7), supplied with hydrogen via a conduit (5).
- a conduit (6) is also introduced, by a pipe (23), a fraction of the heavy diesel cut transported in the pipe (22). This fraction represents 5 to 50% of the total charge passing in the pipe (6).
- the remainder of the heavy diesel cut not passing through the pipe (23) is sent through a pipe (24), mixed in the pipe (21), with the light gas oil fraction resulting from the atmospheric distillation (2).
- the fluid mixture of the lines (21) and (24) is sent to a hydrotreatment (not shown in FIG. 2) in order to bring the diesel to specification.
- the effluent (8) of the mild hydrocracking process (7) is, after various separation steps represented by the block (9) for separating a gas oil fraction whose distillation range is between 130 and 390 ° C. extracted by a conduit (10), and a fraction extracted by a conduit (20) having an initial boiling point greater than 32O 0 C may advantageously constitute the FCC process feedstock represented by the block (30).
- FIG. 3 depicts another embodiment of the invention.
- the installation includes:
- the vacuum distillate cut and / or the deasphalted oil come from an atmospheric distillation of a crude oil, making it possible to separate at least one light gas oil fraction and an atmospheric residue containing a heavy gas oil fraction, said residue being distilled under vacuum to separate at least one vacuum distillate, a vacuum residue and a heavy gas oil cut.
- At least a portion of said heavy gas oil fraction is introduced (secondary charge) into the main feed treated with mild hydrocracking.
- the other part of said heavy gas oil fraction is mixed with the light diesel fuel fraction.
- the crude oil is sent via a conduit (1) to an atmospheric distillation column (2). From this distillation column, a light gas oil fraction is withdrawn via a line (21) and an atmospheric residue through line (3). The residue is sent to a vacuum distillation (4) whose vacuum residue is extracted via a conduit (11) feeding a conversion process (12), for example a coker.
- the distillate of the vacuum distillation (4) is withdrawn through a conduit (6) and sent to a mild hydrocracking process (7), supplied with hydrogen via a conduit (5).
- a pipe (26) In the duct (6) is also introduced, via a pipe (26), a fraction of the heavy gas oil cut also extracted from the vacuum distillation (4) by a pipe (25). This fraction represents 5 to 50% of the total charge passing in the pipe (6).
- the remainder of the heavy diesel cut not passing through the pipe (26) is sent through a pipe (27), mixed in the pipe (21), with the light gas oil fraction resulting from the atmospheric distillation (2).
- the fluid mixture of the lines (21) and (27) is sent to a hydrotreatment (not shown in FIG. 3) in order to bring the diesel to specification.
- the effluent (8) of the mild hydrocracking process (7) is, after various separation steps represented by the block (9) to separate a gas oil fraction whose distillation range is between 130 and 390 ° C, extracted by a conduit (10), and a fraction extracted by a conduit (20) having an initial boiling point greater than 32O 0 C may advantageously constitute the FCC process feedstock represented by the block (30).
- FIG. 4 shows the treatment of a mixture of a vacuum distillate filler and a deasphalted oil by mild hydrocracking.
- the main charge (6) being a vacuum distillate, the soft hydrocracking zone (7), the separation zone (9) and the FCC zone (30) .
- the vacuum residue exiting through line (11) is sent through line (11a) to a deasphalting unit (28) and a deasphalted residue (or deasphalted oil) is output through line (33) and asphalt by the pipe (34).
- a deasphalted residue or deasphalted oil
- the deasphalted oil is fed into the pipe (6) where the main charge flows.
- a secondary charge is also added via the line (29).
- the mixture is subjected to mild hydrocracking of the zone (7).
- the secondary load of the pipe (29) can also be a load external to the installation, it is the same for Figures 1 to 3.
- FIG. 4 shows a treatment of a mixture of vacuum distillate and deasphalted oil.
- the deasphalted oil alone could have been treated equally well in mild hydrocracking, the vacuum distillate of the pipe (6) then being intended for another use.
- the load (29) can also be an external load.
- FIGS. 1 to 3 where a vacuum distillate is treated with mild hydrocracking in zone (7), the vacuum residue is advantageously introduced wholly or partly into a conversion zone (12) via the pipe ( 11), the other part of the residue, fed through line (11a), can be used to produce a deasphalted oil which can be processed by the method and the plant according to the invention.
- the conversion zone (12) has not been shown in FIG.
- a heavy Arab vacuum distillate having the properties mentioned in Table 1 is treated in mild hydrocracking in an isothermal fixed bed pilot unit containing NiMo formulation catalyst (HR548 marketed by AXENS).
- the feedstock is introduced with hydrogen under the following operating conditions representative of the FCC pre-treatment process:
- the catalyst temperature is chosen to have a desulfurization rate (HDS) of 97.72% defined by:
- the effluent leaving the reactor is separated into a gas phase and a liquid phase at ambient temperature and pressure by a set of separators. Then the liquid phase is stripped continuously with hydrogen to remove residual TH 2 S.
- the liquid phase is distilled in the laboratory in a Pi-section 150 0 C, a cutting 150-375 ° C and a cut 375 0 C +.
- Table 3 Characteristics of Direct Diesel Fuel and Mixture The mixture, 21% by weight end below 375 0 C 5 is inserted in the same pilot plant as in Example 1 and hydrotreated in the same volume of AXENS catalyst, according to the same procedure, and under the following conditions :
- the effluent leaving the reactor is separated into a gas phase and a liquid phase at ambient temperature and pressure by a set of separators. Then the liquid phase is stripped continuously with hydrogen to remove the residual H 2 S.
- the liquid phase is distilled in the laboratory in a Pi-150 ° C cut, a 150-375 ° C cut and a 375 ° C + cut.
- the charge / catalyst contact time is lower than in the case of Example 2 (difference of 21.4%); However, the performance in terms of desulfurization and hydrogenation of the 375+ cut, which is the FCC 5 charge are better.
- Example 2 The mixture of Example 2, of which 21% by weight is below 375 ° C., is introduced into the same pilot unit as in Example 1 and hydrotreated on the same volume of the AXENS catalyst, according to the same operating procedure and in the same manner. following operating conditions:
- the effluent leaving the reactor is separated into a gas phase and a liquid phase at ambient temperature and pressure by a set of separators. Then the liquid phase is stripped continuously with hydrogen to remove residual I 1 H 2 S.
- the liquid phase is distilled in the laboratory in a Pi-150 ° C cut, a 150-375 ° C cut and a 375 ° C + cut.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0505865A FR2886941B1 (fr) | 2005-06-09 | 2005-06-09 | Procede d'hydrocraquage doux incluant une dilution de la charge |
PCT/FR2006/001238 WO2006131621A2 (fr) | 2005-06-09 | 2006-05-29 | Procede d'hydrocraquage doux incluant une dilution de la charge |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1893727A2 true EP1893727A2 (fr) | 2008-03-05 |
Family
ID=35344719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06764709A Ceased EP1893727A2 (fr) | 2005-06-09 | 2006-05-29 | Procede d'hydrocraquage doux incluant une dilution de la charge |
Country Status (7)
Country | Link |
---|---|
US (1) | US7718050B2 (fr) |
EP (1) | EP1893727A2 (fr) |
BR (1) | BRPI0611736A2 (fr) |
CA (1) | CA2611089C (fr) |
FR (1) | FR2886941B1 (fr) |
RU (1) | RU2412976C2 (fr) |
WO (1) | WO2006131621A2 (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2910486B1 (fr) * | 2006-12-21 | 2009-02-13 | Inst Francais Du Petrole | Procede de conversion de charges issues de sources renouvelables pour produire des bases carburants gazoles de faible teneur en soufre et de cetane ameliore |
US8433680B2 (en) | 2008-07-01 | 2013-04-30 | Oracle International Corporation | Capturing and restoring database session state |
FR2935982B1 (fr) * | 2008-09-15 | 2010-12-17 | Total France | Procede de pretraitement de fcc par hydrocraquage doux incluant une dilution de la charge par une charge d'origine biologique |
CO6290095A1 (es) * | 2009-12-11 | 2011-06-20 | Ecopetrol Sa | Proceso para incrementar la produccion de aceite liviano de ciclo en una unidad de ruptura catalitica |
US9101854B2 (en) | 2011-03-23 | 2015-08-11 | Saudi Arabian Oil Company | Cracking system and process integrating hydrocracking and fluidized catalytic cracking |
US9101853B2 (en) | 2011-03-23 | 2015-08-11 | Saudi Arabian Oil Company | Integrated hydrocracking and fluidized catalytic cracking system and process |
JP6068437B2 (ja) * | 2011-04-15 | 2017-01-25 | ペトロレオ ブラジレイロ ソシエダ アノニマ − ペトロブラス | 2つの別個のコンバータを使用してディーゼルを最大限にするfcc法 |
US8932451B2 (en) | 2011-08-31 | 2015-01-13 | Exxonmobil Research And Engineering Company | Integrated crude refining with reduced coke formation |
FR2984916B1 (fr) * | 2011-12-23 | 2014-01-17 | IFP Energies Nouvelles | Procede ameliore de conversion d'une charge lourde en distillat moyen faisant appel a un pretraitement en amont de l'unite de craquage catalytique |
JP6026782B2 (ja) * | 2012-05-31 | 2016-11-16 | 出光興産株式会社 | 重質油の水素化処理方法 |
CN103805256B (zh) * | 2012-11-07 | 2015-09-30 | 中国石油化工股份有限公司 | 一种催化柴油反应蒸馏方法 |
CN104611049B (zh) * | 2013-11-05 | 2016-08-17 | 中国石油化工股份有限公司 | 一种催化柴油反应蒸馏方法 |
US9181500B2 (en) | 2014-03-25 | 2015-11-10 | Uop Llc | Process and apparatus for recycling cracked hydrocarbons |
US10385279B2 (en) | 2014-03-25 | 2019-08-20 | Uop Llc | Process and apparatus for recycling cracked hydrocarbons |
FR3022255B1 (fr) * | 2014-06-13 | 2016-07-29 | Ifp Energies Now | Procede d'hydrotraitement de coupes distillats utilisant un catalyseur a base d'une alumine mesoporeuse amorphe ayant une connectivite elevee |
RU2612133C1 (ru) * | 2016-03-11 | 2017-03-02 | Акционерное общество "Всероссийский научно-исследовательский институт по переработке нефти" (АО "ВНИИ НП") | Способ гидрогенизационной переработки вакуумного дистиллата |
US11788017B2 (en) | 2017-02-12 | 2023-10-17 | Magëmã Technology LLC | Multi-stage process and device for reducing environmental contaminants in heavy marine fuel oil |
US20180230389A1 (en) | 2017-02-12 | 2018-08-16 | Magēmā Technology, LLC | Multi-Stage Process and Device for Reducing Environmental Contaminates in Heavy Marine Fuel Oil |
US12025435B2 (en) | 2017-02-12 | 2024-07-02 | Magēmã Technology LLC | Multi-stage device and process for production of a low sulfur heavy marine fuel oil |
US10604709B2 (en) | 2017-02-12 | 2020-03-31 | Magēmā Technology LLC | Multi-stage device and process for production of a low sulfur heavy marine fuel oil from distressed heavy fuel oil materials |
US12071592B2 (en) | 2017-02-12 | 2024-08-27 | Magēmā Technology LLC | Multi-stage process and device utilizing structured catalyst beds and reactive distillation for the production of a low sulfur heavy marine fuel oil |
EP3728523B1 (fr) * | 2017-12-19 | 2021-12-15 | ExxonMobil Research and Engineering Company | Compositions de carburant marin à faible teneur en soufre |
US11578273B1 (en) | 2022-02-15 | 2023-02-14 | Saudi Arabian Oil Company | Upgrading of heavy residues by distillation and supercritical water treatment |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2914457A (en) * | 1957-06-28 | 1959-11-24 | Texaco Inc | Petroleum refining process |
US6280606B1 (en) * | 1999-03-22 | 2001-08-28 | Institut Francais Du Petrole | Process for converting heavy petroleum fractions that comprise a distillation stage, ebullated-bed hydroconversion stages of the vacuum distillate, and a vacuum residue and a catalytic cracking stage |
FR2815041B1 (fr) * | 2000-10-05 | 2018-07-06 | IFP Energies Nouvelles | Procede de production de diesel par hydrocraquage a pression moderee |
US6702935B2 (en) * | 2001-12-19 | 2004-03-09 | Chevron U.S.A. Inc. | Hydrocracking process to maximize diesel with improved aromatic saturation |
FR2864103B1 (fr) * | 2003-12-23 | 2006-03-17 | Inst Francais Du Petrole | Procede de traitement d'une charge hydrocarbonee incluant un enlevement des resines |
-
2005
- 2005-06-09 FR FR0505865A patent/FR2886941B1/fr not_active Expired - Fee Related
-
2006
- 2006-05-29 EP EP06764709A patent/EP1893727A2/fr not_active Ceased
- 2006-05-29 BR BRPI0611736-8A patent/BRPI0611736A2/pt not_active Application Discontinuation
- 2006-05-29 CA CA2611089A patent/CA2611089C/fr not_active Expired - Fee Related
- 2006-05-29 RU RU2007149274/04A patent/RU2412976C2/ru active
- 2006-05-29 WO PCT/FR2006/001238 patent/WO2006131621A2/fr not_active Application Discontinuation
- 2006-06-09 US US11/449,867 patent/US7718050B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
US20060289338A1 (en) | 2006-12-28 |
BRPI0611736A2 (pt) | 2010-09-28 |
RU2412976C2 (ru) | 2011-02-27 |
FR2886941B1 (fr) | 2010-02-12 |
WO2006131621A2 (fr) | 2006-12-14 |
RU2007149274A (ru) | 2009-07-10 |
CA2611089A1 (fr) | 2006-12-14 |
FR2886941A1 (fr) | 2006-12-15 |
WO2006131621A3 (fr) | 2007-02-08 |
US7718050B2 (en) | 2010-05-18 |
CA2611089C (fr) | 2013-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2611089C (fr) | Procede d'hydrocraquage doux incluant une dilution de la charge | |
EP3018188B1 (fr) | Procede de conversion de charges petrolieres comprenant une etape d'hydrotraitement en lit fixe, une etape d'hydrocraquage en lit bouillonnant, une etape de maturation et une etape de separation des sediments pour la production de fiouls a basse teneur en sediments | |
EP1307526B1 (fr) | Procede flexible de production de bases huiles et de distillats moyens a partir de charge contenant des heteroatomes | |
EP3018189B1 (fr) | Procede de conversion de charges petrolieres comprenant une etape de viscoreduction, une etape de maturation et une etape de separation des sediments pour la production de fiouls a basse teneur en sediments | |
WO2008081100A2 (fr) | Procede de conversion de charges issues de sources renouvelables pour produire des bases carburants gazoles de faible teneur en soufre et de cetane ameliore | |
CA2854429A1 (fr) | Procede d'hydroconversion de charges petrolieres en lits fixes pour la production de fiouls a basse teneur en soufre | |
FR2940313A1 (fr) | Procede d'hydrocraquage incluant des reacteurs permutables avec des charges contenant 200ppm poids-2%poids d'asphaltenes | |
FR2885134A1 (fr) | Procede de prerafinage de petrole brut avec hydroconversion moderee en plusieurs etapes de l'asphalte vierge en presence de diluant | |
EP1849850A1 (fr) | Procédé de désulfuration d'essences oléfiniques comprenant au moins deux étapes distinctes d'hydrodésulfuration | |
FR2854163A1 (fr) | Procede de valorisation de charges lourdes par desasphaltage et hydrocraquage en lit bouillonnant | |
FR3014111A1 (fr) | Procede de raffinage d'une charge hydrocarbonee lourde mettant en œuvre un desasphaltage selectif en cascade | |
WO2013093227A1 (fr) | Procede ameliore de conversion d'une charge lourde en distillat moyen faisant appel a un pretraitement en amont de l'unite de craquage catalytique | |
EP3312260B1 (fr) | Procede d'hydrodesulfuration d'une essence olefinique | |
EP2886629B1 (fr) | Procédé d'hydrodesulfuration de coupes d'hydrocarbures | |
CA2607252C (fr) | Procede et installation de conversion de fractions lourdes petrolieres en lit fixe avec production integree de distillats moyens a tres basse teneur en soufre | |
FR3008711A1 (fr) | Procede de raffinage d'une charge hydrocarbonee de type residu sous-vide mettant en œuvre un desasphaltage selectif, un hydrotraitement et une conversion du residu sous-vide pour la production d'essence et d'olefines legeres | |
WO2020144095A1 (fr) | Procede d' hydrocraquage en deux etapes pour la production de naphta comprenant une etape d'hydrogenation mise en œuvre en aval de la deuxieme etape d'hydrocraquage | |
FR2933711A1 (fr) | Procede de conversion comprenant une viscoreduction de residu, puis un desasphaltage et une hydroconversion | |
FR2933709A1 (fr) | Procede de conversion comprenant une hydroconversion d'une charge, un fractionnement, puis un desasphatage de la fraction residu sous vide | |
WO2020144097A1 (fr) | Procede d'hydrocraquage en deux etapes comprenant une etape d'hydrogenation en aval de la deuxieme etape d'hydrocraquage pour la production de distillats moyens | |
WO2020144096A1 (fr) | Procede d'hydrocraquage en deux etapes comprenant une etape d'hydrogenation en amont de la deuxieme etape d'hydrocraquage pour la production de distillats moyens | |
FR2999600A1 (fr) | Procede de raffinage d'une charge hydrocarbonee lourde mettant en oeuvre un desasphaltage selectif | |
FR2970478A1 (fr) | Procede d'hydroconversion en lit fixe d'un petrole brut, etete ou non, un fractionnement, puis un desasphaltage de la fraction lourde pour la production d'un brut synthetique preraffine | |
WO2010004125A2 (fr) | Procede de conversion comprenant une hydroconversion de la charge puis une viscoreduction et un fractionnement | |
EP2163596A1 (fr) | Procédé de prétraitement de FCC par hydrocraquage doux incluant une dilution de la charge par une charge d'origine biologique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080109 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE ES GR IT NL |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE ES GR IT NL |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20090914 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: IFP ENERGIES NOUVELLES |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20171114 |