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EP3087162B1 - Procédé de production de distillats intermédiaires - Google Patents

Procédé de production de distillats intermédiaires Download PDF

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Publication number
EP3087162B1
EP3087162B1 EP14819014.3A EP14819014A EP3087162B1 EP 3087162 B1 EP3087162 B1 EP 3087162B1 EP 14819014 A EP14819014 A EP 14819014A EP 3087162 B1 EP3087162 B1 EP 3087162B1
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EP
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Prior art keywords
product
process according
recycled
carried out
residual fraction
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German (de)
English (en)
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EP3087162A1 (fr
Inventor
Nicolaas Van Dijk
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Shell Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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Priority to PL14819014T priority patent/PL3087162T3/pl
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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
    • C10G67/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
    • C10G67/04—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen
    • C10G67/0454—Solvent desasphalting
    • C10G67/0463—The hydrotreatment being a hydrorefining
    • 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
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C10G21/003—Solvent de-asphalting
    • 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
    • C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
    • C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
    • C10G65/12—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
    • 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
    • C10G67/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
    • C10G67/04—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen
    • C10G67/0454—Solvent desasphalting
    • C10G67/049—The hydrotreatment being a hydrocracking
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • 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
    • C10G2300/40—Characteristics of the process deviating from typical ways of processing
    • C10G2300/4081—Recycling aspects
    • 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
    • C10G2300/40—Characteristics of the process deviating from typical ways of processing
    • C10G2300/42—Hydrogen of special source or of special composition

Definitions

  • the present invention relates to process for producing middle distillates.
  • Object of the present invention is to provide a process for producing ultra low sulphur middle distillates in high yields.
  • This object is achieved when use is made of a particular multi-step process.
  • high yields of middle distillates containing less than 10 ppm sulphur can advantageously be produced from residual hydrocarbonaceous feedstocks.
  • the residual hydrocarbonaceous feedstocks to be used in accordance with the present invention can suitable be residual hydrocarbon oils, such as those obtained in the distillation of crude oils at atmospheric or reduced pressure.
  • at least 75 wt%, more preferably at least 85 wt%, and even more preferably at least 90 wt% of the residual hydrocarbonaceous feedstock has a boiling point of above 550 °C.
  • Atmospheric residues or vacuum residues contain however considerable amounts of non-distillable compounds having a high molecular weight such as asphaltenes. It is therefore considered desirable to remove asphaltenes from a residual hydrocarbon oil feed prior to subjecting the residual hydrocarbon oil to subsequent upgrading steps.
  • a residual hydrocarbonaceous feedstock is deasphalted to obtain a deasphalted product of which at least 50 wt% , preferably at least 70 %, more preferably at least 80 wt%, and even more preferably at least 85 wt% has a boiling point above 550 °C and an asphaltic product.
  • step (a) the deasphalting in step (a) is carried out by means of a solvent deasphalting treatment.
  • paraffinic compounds include C3-8 paraffinic hydrocarbons, such as propane, butane, isobutane, pentane, isopentane, hexane or mixtures of two or more of these.
  • C3-C5 paraffinic hydrocarbons most preferably butane, pentane or a mixture thereof, are used as the extracting solvent.
  • the extraction depth increases at increasing number of carbon atoms of the extracting solvent.
  • a rotating disc contactor or a plate column can be used with the residual hydrocarbonaceous feedstock entering at the top and the extracting solvent entering at the bottom.
  • the lighter hydrocarbons which are present in the residual hydrocarbonaceous feedstock dissolve in the extracting solvent and are withdrawn as the deasphalted product at the top of the apparatus.
  • the asphaltenes which are insoluble in the extracting solvent are withdrawn in the form of the asphaltic product at the bottom of the apparatus.
  • the conditions under which deasphalting takes place are known in the art. Deasphalting is carried out at a total extracting solvent to residual hydrocarbon oil ratio of 1.5 to 8 wt/wt, a pressure of from 1 to 60 bara and a temperature of from 40 to 200 ° C.
  • a deasphalting treatment generally causes a substantial amount of the metallic contaminants present in the feed as high-molecular weight complexes to accumulate in the asphaltic product rather than in the deasphalted product. Nonetheless, the metals content of the deasphalted product will be such that the deasphalted product needs to be subjected to a hydrodemetallizing step before it can be subjected to further hydroprocessing upgrading steps.
  • step (b) at least part of the deasphalted product as obtained in step (a) is hydrodemetallized to obtain a hydrodemetallized product.
  • step (b) the entire deasphalted product as obtained in step (a) is hydrodemetallized.
  • the deasphalted product which is hydrodemetallized in step (b) is a pure and heavy deasphalted product. This means that at least 50 wt%, preferably at least 70 wt%, more preferably at least 80 wt%, and even more preferably at least 85 wt% of the deasphalted product to be treated in step (b) has a boiling point of above 550 °C. Unlike in other hydroconversion processes such as for instance disclosed in EP 1731588 A1 , the entire undiluted deasphalted product as obtained in step (a) can now be hydrodemetallized in step (b), and there is no need to dilute the deasphalted product before it can be further processed.
  • the hydrodemetallisation of the deasphalted product in step (b) can be achieved by any well known hydrodemetallization treatment wherein the deasphalted product to be hydrodemetallized is passed at elevated temperature and pressure and in the presence of hydrogen in an upward, downward or radial direction, through one or more vertically disposed reactors containing a fixed or moving bed of hydrodemetallization catalyst particles.
  • the hydrodemetallization is at least partially carried out in a bunker flow.
  • a hydrodemetallization catalyst for use in step (b), suitably use is made of a hydrodemetallization catalyst.
  • Suitable hydrodemetallization catalysts to be used in accordance with the present invention consist of oxidic carriers such as alumina, silica or silica-alumina, on which one or more Group VIB or Group VIII metals or metal compounds may be deposited.
  • Such hydrodemetallization catalysts are commercially available from many catalyst suppliers.
  • Particularly suitable hydrodemetallization catalysts are those having as the active agent one of the combinations nickel/molybdenum (NiMo) or cobalt/molybdenum (CoMo), optionally promoted with phosphorus (P), on an alumina (Al2O3) carrier. Concrete examples of particularly suitable catalysts are CoMo/A1203, CoMoP/Al2O3 and NiMo/A1203 and NiMoP/Al2O3 catalysts.
  • the hydrodemetallization in step (b) can suitably be carried out at a hydrogen partial pressure of 20-300 bara, preferably 50-210 bara, a temperature of 300-470 °C, preferably 310-440 °C, and a space velocity of 0.1-10 hr -1 , preferably 0.2 to 7 hr - 1.
  • the hydrodemetallization reactor is preferably a bunker flow reactor, a fixed bed swing reactor or a movable bed reactor.
  • the hydrodemetallization catalyst(s) is (are) regularly replaced for instance every three weeks or two months, whereas in conventional processes the hydrodemetallization catalyst(s) (like the hydrotreating and hydrocracking catalysts to be used in steps (c) and (d) in the present process) may not be replaced within a year time.
  • step (c) at least part of the hydrodemetallized product as obtained in step (b) is hydrotreated to obtain a hydrotreated product.
  • step (c) the entire hydrodemetallized product as obtained in step (b) is hydrotreated.
  • the hydrotreating of the hydrodemetallized product in step (c) can be achieved by any well known hydrotreating process wherein the hydrodemetallized product to be hydrotreated is passed at elevated temperature and pressure and in the presence of hydrogen in an upward, downward or radial direction, through one or more vertically disposed reactors containing a fixed or moving bed of hydrotreating catalyst particles.
  • the hydrotreatment can be carried out in a bunker flow reactor, a fixed bed reactor, a fixed bed swing reactor or a movable bed reactor.
  • the hydrotreatment in step (c) is carried out in two reaction zones, whereby the hydrodemetallized product is first passed to a first reaction zone in which the hydrodemetallized product is partly hydrotreated after which the partly hydrotreated effluent so obtained is subjected to further hydrotreatment in a second reaction zone.
  • the first reaction zone and second reaction zone can be arranged in a stacked bed configuration or the two reactions zones can each be arranged in a separate reactor.
  • the first reaction zone and the second reaction zone are respectively arranged in a first reactor and a second reactor.
  • the first reactor may be a bunker flow reactor and the second reactor may bea fixed bed reactor.
  • the hydrotreating catalyst to be used in step (c) can suitably be a desulphurization catalyst.
  • the desulphurization catalyst may be any hydrodesulphurization catalyst known in the art.
  • Suitable hydrodesulphurization catalysts comprise a Group VIII metal of the Periodic Table and a compound of a Group VIB metal of the Periodic Table as hydrogenation components on a porous catalyst support, usually alumina or amorphous silica-alumina.
  • a porous catalyst support usually alumina or amorphous silica-alumina.
  • suitable combinations of hydrogenation compounds are cobalt-molybdenum, nickel-molybdenum, nickel-tungsten, and nickel-cobalt-molybdenum.
  • a hydrodesulphurization catalyst comprising compounds of nickel and/or cobalt and molybdenum as hydrogenation compounds is preferred.
  • the hydrodesulphurization catalyst may further comprise a cracking component such as for example Y zeolite. It is, however, preferred that no substantial hydrocracking takes place in the hydrotreatment in step (c). Therefore, it is preferred that the catalyst is substantially free of a cracking component.
  • the hydrotreating conditions in step (c), i.e. temperature, pressure, hydrogen supply rate, weight hourly velocity of the feedstock, are typical hydrotreating conditions.
  • the temperature used for the hydrotreating in step (c) is in the range of from 280 to 430 °C, more preferably in the range of from 320 to 420 °C, and most preferably in the range of from 330 to 410 °C.
  • Suitable hydrotreating pressures are in the range of from 10 to 300 bara.
  • the hydrotreating pressure is in the range of from 30 to 250 bara, more preferably in the range of from 80 to 220 bara.
  • step (d) at least part of the hydrotreated product as obtained in step (c) is hydrocracked to obtain a hydrocracked product.
  • step (d) the entire hydrotreated product as obtained in step (a) is hydrocracked.
  • the hydrocracking in step (d) of the process according to the present invention may be conducted in any way known in the art, provided that at least one of the catalysts used in the hydrocracking zone is acidic.
  • the hydrocracking is carried out in the presence of hydrogen and a suitable hydrocracking catalyst at elevated temperature and pressure.
  • Suitable hydrocracking catalysts consist of one or more metals from nickel, tungsten, cobalt and molybdenum in elemental, oxidic or sulphidic form on a suitable carrier such as alumina, silica, silica-alumina or a zeolite.
  • a suitable carrier such as alumina, silica, silica-alumina or a zeolite.
  • There are many commercially available hydrocracking catalysts which can be suitably applied in the process of the present invention.
  • At least one of the catalysts used in the hydrocracking zone must be acidic, i.e. must contain a silica-alumina and/or zeolitic component.
  • the hydrocracking in step (d) can be carried out in a single- or multiple-stage mode of operation.
  • a single-stage mode of operation a stacked bed of a hydrodenitrification/first-stage hydrocracking catalyst on top of a conversion catalyst can suitably be used.
  • Particularly suitable hydrodenitrification/first-stage hydrocracking catalysts are NiMo/Al2O3 and CoMo/Al2O3, optionally promoted with phosphorus and/or fluor.
  • Preferred conversion catalysts are those based on NiW/zeolite or NiW/zeolite/silica-alumina.
  • Suitable hydrocracking conditions in step (d) are an operating pressure of 80-250 bara, preferably 90-220 bara, and a temperature of 300-460 °C, preferably 350-430 °C.
  • step (e) at least part of the hydrocracked product as obtained in step (d) is subjected to a separation treatment to obtain at least a middle distillate fraction.
  • step (e) the entire hydrocracked product as obtained in step (d) is subjected to the separation treatment.
  • the separation treatment is step (e) can suitably a fractionating treatment which is carried out at a temperature in the range from 50 to 400 °C, preferably at a temperature in the range of from 70 to 370 °C, and a pressure in the range of from 0.03 to 15 bara, preferably a pressure in the range of from 0.05 to 10 bara.
  • a heavy residual fraction Beside of the middle distillate fraction to be obtained in step (e) there can also be obtained a heavy residual fraction.
  • at least 80% of the heavy residual fraction also obtained in the separation treatment in step (e) has a boiling point above 370 °C.
  • at least 90% of the heavy residual fraction also obtained in the separation treatment in step (e) has a boiling point above 370 °C.
  • At least part of a heavy residual fraction also obtained in step (e) may be recycled to step (a). In this way an improved yield of middle distillates can be obtained.
  • said heavy fraction could also be suitably applied as a feed for a fluidised bed catalytic cracking (FCC) unit or as a feedstock for lubricating oil manufacture.
  • FCC fluidised bed catalytic cracking
  • step (e) In order to achieve an optimum middle distillates yield, it is preferred that at least a part of the heavy fraction obtained in step (e) is again subjected to hydrocracking to improve the yield of middle distillates. Hence, in a preferred embodiment at least part of a heavy residual fraction which is also obtained in step (e) is recycled to step (d).
  • step (e) At least part of the heavy residual fraction also obtained in step (e) is recycled to step (a) and at least part of the heavy residual fraction also obtained in step (e) is recycled to step (d). In this way the yield of middle distillates is further improved.
  • step (e) At least part of a heavy residual fraction also obtained in step (e) is subjected to a further hydrocracking step (f), and at least part of the hydrocracked product as obtained in such a step (f) is recycled to step (e). Also this embodiment ensures that an optimal yield of middle distillates will be established.
  • At least part of the heavy residual fraction also obtained in step (e) is also recycled to step (a) to improve the middle distillate yield even further.
  • the hydrocracking in step (d) and/or step (f) is carried out in two or more reaction zones.
  • the two or more reaction zones are arranged in a stacked bed configuration.
  • the asphaltic product as obtained in step (a) may be used in several ways. It can for instance be combusted for cogeneration of power and steam. Alternatively, it can be partially combusted for clean fuel gas production, cogeneration of power and steam, hydrogen manufacture or hydrocarbon synthesis. Still another option is application in bitumen, emulsion fuels or solid fuels by means of pelletizing.
  • step (a) Preferably, at least part of the asphaltic product as obtained in step (a) is subjected to a gasification step (g) to obtain hydrogen and carbon monoxide.
  • such a gasification step (g) is a partial combustion step.
  • step (g) At least part of the hydrogen as obtained in step (g) is recycled to at least one of steps (b), (c), (d) and (f).
  • the middle distillate fraction as obtained in step (e) comprises middle distillates which contain less than 10 ppmwt of sulphur.
  • the middle distillates contain less than 8 ppmwt of sulphur, more preferably less than 6 ppmwt of sulphur, and most preferably less than 5 ppmwt of sulphur.
  • Figure 1 depicts the process according to the present invention
  • Figure 2 depicts a preferred embodiment of the present invention
  • Figure 3 depicts a further preferred embodiment of the process according to the present invention.
  • an atmospheric or reduced pressure hydrocarbon oil residue is passed via a line 1 into a deasphalting unit 2 in which a deasphalted product and an asphaltic product are obtained. At least part of the deasphalted product is passed via a line 3 into a hydrodemetallization unit 5 and the asphaltic product is withdrawn from the deasphalting unit 2 via a line 4. At least part of the hydrodemetallized product as obtained in hydrodemetallization unit 5 is passed via a line 6 to hydrotreating unit 7. At least part of the hydrotreated product as obtained in the hydrotreating unit 7 is then passed to a hydrocracking unit 9 via a line 8. At least part of the hydrocracked product as obtaind in the hydrocracking unit 9 is passed via a line 10 to a fractionating unit 11 from which at least a middle distillate fraction is recovered via a line 12.
  • Figure 2 is an extension of Figure 1 in that in the fractionating unit 11 also a heavy residual fraction is obtained which is withdrawn via a line 13 from the fractionating unit 11 and at least part of the heavy residual fraction is recycled to the deasphalting unit 2.
  • Figure 3 is an extension of Figure 2 in that in the fractionating unit 11 also a heavy residual fraction is obtained which is withdrawn via a line 13 from the fractionating unit 11 and at least part of the heavy residual fraction is recycled via a line 14 to the hydrocracking unit 9 and/or at least part of the heavy residual fraction is recycled via a line 15 to the hydrodemetallization unit 5 and/or at least part of the heavy residual fraction is recycled via a line 16 to the deasphalting unit 2.
  • Figure 4 is an extension of Figure 1 in that in the fractionating unit 11 also a heavy residual fraction is obtained which is withdrawn via a line 13 from the fractionating unit 11 and at least part of the heavy residual fraction is passed via the line 13 to a hydrocracking unit 14. At least part of the hydrocracked product as obtained in the hydrocracking unit 14 is recycled to fractionating unit 11 via lines 15 and 16 and at least part of the heavy residual fraction as obtained in the fractionating unit 11 is recycled via lines 15 and 17 to the deasphalting unit 2.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Claims (13)

  1. Procédé de production de distillats intermédiaires à partir d'une charge de départ hydrocarbonée résiduelle, comprenant les étapes de :
    (a) désasphaltage de la charge de départ hydrocarbonée résiduelle selon un rapport en poids du solvant d'extraction total à l'huile hydrocarbonée résiduelle situé dans la plage allant de 1,5 à 8, à une pression située dans la plage allant de 1 à 60 bara et à une température située dans la plage allant de 40 à 200°C, pour obtenir un produit désasphalté, dont au moins 50 % en poids présente un point d'ébullition supérieur à 550°C, et un produit asphaltique, au moins 70 % en poids de la charge de départ hydrocarbonée résiduelle présentant un point d'ébullition supérieur à 550°C ;
    (b) hydrodémétallisation d'au moins une partie du produit désasphalté tel qu'obtenu à l'étape (a) pour obtenir un produit hydrodémétallisé, l'hydrodémétallisation étant au moins partiellement effectuée dans un réacteur à écoulement de mazout lourd ;
    (c) hydrotraitement d'au moins une partie du produit hydrodémétallisé tel qu'obtenu à l'étape (b) pour obtenir un produit hydrotraité ;
    (d) hydrocraquage d'au moins une partie du produit hydrotraité tel qu'obtenu à l'étape (c) pour obtenir un produit hydrocraqué ; et
    (e) soumission d'au moins une partie du produit hydrocraqué tel qu'obtenu à l'étape (d) à un traitement de séparation pour obtenir au moins une fraction de distillat intermédiaire.
  2. Procédé selon la revendication 1, dans lequel le désasphaltage de l'étape (a) est effectué au moyen d'un traitement de désasphaltage au solvant.
  3. Procédé selon la revendication 1 ou 2, dans lequel l'hydrodémétallisation de l'étape (b) est effectuée en présence d'hydrogène à une température située dans la plage allant de 300 à 470°C et à une pression située dans la plage allant de 20 à 300 bara.
  4. Procédé selon l'une quelconque des revendications 1 à 3, dans lequel l'hydrotraitement de l'étape (c) est effectué en présence d'hydrogène à une température située dans la plage allant de 280 à 430°C et à une pression située dans la plage allant de 10 à 300 bara.
  5. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel l'hydrocraquage de l'étape (d) est effectué en présence d'hydrogène à une température située dans la plage allant de 300 à 500°C et à une pression située dans la plage allant de 80 à 250 bara.
  6. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel, dans le traitement de séparation effectué à l'étape (e), on obtient également une fraction résiduelle lourde, au moins une partie de la fraction résiduelle lourde étant recyclée vers l'étape (a) et/ou au moins une partie de la fraction résiduelle lourde étant recyclée vers l'étape (b) et/ou au moins une partie de la fraction résiduelle lourde étant recyclée vers l'étape (c) et/ou au moins une partie de la fraction résiduelle lourde étant recyclée vers l'étape (d).
  7. Procédé selon l'une quelconque des revendications 1 à 6, dans lequel, dans le traitement de séparation effectué à l'étape (e), on obtient également une fraction résiduelle lourde, dont au moins une partie est soumise à une étape d'hydrocraquage supplémentaire (f), et au moins une partie du produit hydrocraqué tel qu'obtenu à l'étape (f) est recyclée vers l'étape (e).
  8. Procédé selon la revendication 7, dans lequel au moins une partie de la fraction résiduelle lourde telle qu'obtenue à l'étape (e) est également recyclée vers l'étape (a).
  9. Procédé selon l'une quelconque des revendications 1 à 8, dans lequel l'hydrocraquage de l'étape (d) et/ou de l'étape (f) est effectué en deux étapes ou plus.
  10. Procédé selon l'une quelconque des revendications 1 à 9, dans lequel au moins une partie du produit asphaltique tel qu'obtenu à l'étape (a) est soumise à une étape de gazéification (g) pour obtenir de l'hydrogène et du monoxyde de carbone.
  11. Procédé selon la revendication 10, dans lequel au moins une partie de l'hydrogène tel qu'obtenu à l'étape (g) est recyclée vers au moins l'une des étapes (b), (c), (d) et (f).
  12. Procédé selon l'une quelconque des revendications 6 à 11, dans lequel au moins 80 % de la fraction résiduelle lourde telle qu'obtenue lors du traitement de séparation de l'étape (e) présente un point d'ébullition supérieur à 370°C.
  13. Procédé selon l'une quelconque des revendications 1 à 12, dans lequel les distillats intermédiaires produits contiennent moins de 6 ppm en poids de soufre.
EP14819014.3A 2013-12-24 2014-12-22 Procédé de production de distillats intermédiaires Active EP3087162B1 (fr)

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EP14819014.3A EP3087162B1 (fr) 2013-12-24 2014-12-22 Procédé de production de distillats intermédiaires
PL14819014T PL3087162T3 (pl) 2013-12-24 2014-12-22 Sposób wytwarzania średnich destylatów

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Application Number Priority Date Filing Date Title
EP13199599 2013-12-24
PCT/EP2014/079095 WO2015097199A1 (fr) 2013-12-24 2014-12-22 Procédé pour produire des distillats moyens
EP14819014.3A EP3087162B1 (fr) 2013-12-24 2014-12-22 Procédé de production de distillats intermédiaires

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WO2018122274A1 (fr) 2016-12-28 2018-07-05 Shell Internationale Research Maatschappij B.V. Procédé de production de distillats moyens
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
US10655074B2 (en) 2017-02-12 2020-05-19 Mag{hacek over (e)}m{hacek over (a)} Technology LLC Multi-stage process and device for reducing environmental contaminates in heavy marine fuel oil
WO2023227639A1 (fr) * 2022-05-25 2023-11-30 Shell Internationale Research Maatschappij B.V. Procédé de production de distillats moyens

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MX9502237A (es) * 1994-05-19 1997-02-28 Shell Int Research Proceso para la conversion de un aceite residual de hidrocarburo.
EP0697455B1 (fr) * 1994-07-22 2001-09-19 Shell Internationale Research Maatschappij B.V. Procédé de préparation d'une cire hydrogénée
EP1731588A1 (fr) * 2005-06-08 2006-12-13 Shell Internationale Researchmaatschappij B.V. Procédé de valorisation d'huile brute
US9284502B2 (en) 2012-01-27 2016-03-15 Saudi Arabian Oil Company Integrated solvent deasphalting, hydrotreating and steam pyrolysis process for direct processing of a crude oil
JP5991562B2 (ja) * 2012-06-05 2016-09-14 サウジ アラビアン オイル カンパニー 原油全体を脱アスファルトおよび脱硫するための統合された方法

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PL3087162T3 (pl) 2019-09-30
CN113214866A (zh) 2021-08-06
EP3087162A1 (fr) 2016-11-02
WO2015097199A1 (fr) 2015-07-02
KR102444109B1 (ko) 2022-09-15
CN105849237A (zh) 2016-08-10
KR20160102510A (ko) 2016-08-30

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