WO2012085407A1 - Procède de conversion de charge hydrocarbonate comprenant une huile de schiste par hydre conversion en lit bouillonnant, fractionnement par distillation atmosphérique, et hydrocraquage - Google Patents
Procède de conversion de charge hydrocarbonate comprenant une huile de schiste par hydre conversion en lit bouillonnant, fractionnement par distillation atmosphérique, et hydrocraquage Download PDFInfo
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- WO2012085407A1 WO2012085407A1 PCT/FR2011/053021 FR2011053021W WO2012085407A1 WO 2012085407 A1 WO2012085407 A1 WO 2012085407A1 FR 2011053021 W FR2011053021 W FR 2011053021W WO 2012085407 A1 WO2012085407 A1 WO 2012085407A1
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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
- 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
- C10G65/10—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including only cracking steps
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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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- 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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
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- 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
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/06—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/06—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
- C10G45/08—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
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- 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
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
- C10G47/10—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used with catalysts deposited on a carrier
- C10G47/12—Inorganic carriers
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- 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
- C10G47/24—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions with moving solid particles
- C10G47/26—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions with moving solid particles suspended in the oil, e.g. slurries
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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
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes 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
- 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
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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
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
- C10G65/14—Treatment of hydrocarbon oils by two or more hydrotreatment processes 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
- C10G2300/1011—Biomass
- C10G2300/1014—Biomass of vegetal origin
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- 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
- C10G2300/1011—Biomass
- C10G2300/1018—Biomass of animal origin
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- 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
- C10G2300/1074—Vacuum distillates
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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
- C10G2300/1077—Vacuum residues
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- 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
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- 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
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- 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
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/02—Gasoline
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/06—Gasoil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
Definitions
- the invention relates to a process for converting hydrocarbon feedstocks comprising a shale oil into lighter products, recoverable as fuels and / or raw materials for petrochemicals. More particularly, the invention relates to a process for converting hydrocarbon feedstocks comprising a shale oil comprising a step of hydroconversion of the boiling bed feedstock, followed by a step of fractionation by atmospheric distillation into a light fraction, naphtha, gas oil and in a heavier fraction than the gas oil fraction, a dedicated hydro treatment for each of the naphtha and diesel fractions, and a hydrocracking of the heavier fraction than diesel.
- This process makes it possible to convert shale oils into fuel base of very good quality and aims in particular at an excellent yield.
- Oil shales are sedimentary rocks containing an insoluble organic substance called kerogen.
- kerogen an insoluble organic substance called kerogen.
- heat treatment in situ or ex situ in the English terminology in the absence of air at temperatures between 400 and 500 ° C, these schists release an oil, shale oil , whose general appearance is that of crude oil.
- shale oils can be a substitute for the latter and also a source of chemical intermediates.
- Shale oils can not be a direct substitute for crude oil applications. Indeed, although these oils in some ways resemble oil (for example by a ratio
- H / C similar
- they are distinguished by their chemical nature and by a content of metal impurities and / or nonmetallic impurities much more important, making the conversion of this unconventional resource much more complex than that of oil.
- Shale oils have higher levels of oxygen and nitrogen than oil. They may also contain higher concentrations of olefins, sulfur or metal compounds (including arsenic).
- Shale oils obtained by pyrolysis of kerogen contain many olefinic compounds resulting from cracking, which implies an additional demand for hydrogen in refining.
- the bromine index which makes it possible to calculate the concentration by weight of olefinic hydrocarbons (by addition of bromine to the ethylenic double bond), is generally greater than 30 g / 100 g of filler for shale oils, whereas it is between 1 and 5 g / 100 g of charge for the oil residues.
- the olefinic compounds resulting from cracking consist essentially of mono olefins and diolefins. The unsaturations present in the olefins are potential source of instability by polymerization and / or oxidation.
- the oxygen content is generally higher than in heavy crudes and can reach up to 8% by weight of the filler.
- Oxygen compounds are often phenols or carboxylic acids. As a result, shale oils may have marked acidity.
- the sulfur content varies between 0.1 and 6.5% by weight, requiring severe desulfurization treatments in order to reach the specifications of the fuel bases.
- the sulfur compounds are in the form of thiophenes, sulfides or disulfides.
- the distribution profile of sulfur in a shale oil may be different from that obtained in conventional oil.
- shale oils are their high nitrogen content, making them unsuitable as conventional refinery feedstock.
- the oil generally contains about 0.2% by weight of nitrogen whereas crude shale oils generally contain from about 1 to about 3% by weight or more of nitrogen.
- the nitrogen compounds present in petroleum are generally concentrated in the higher boiling ranges whereas the nitrogen of the compounds present in the oils of Raw shale is usually distributed throughout all the boiling ranges of the material.
- Nitrogen compounds in petroleum are predominantly non-basic compounds, whereas typically about half of the nitrogen compounds present in crude shale oils are basic in nature. These basic nitrogen compounds are particularly undesirable in the refining feeds because these compounds often act as catalyst poisons.
- shale oils may contain many trace metal compounds, generally present as organometallic complexes.
- metal compounds mention may be made of conventional contaminants such as nickel, vanadium, calcium, sodium, lead or iron, but also metal arsenic compounds.
- shale oils can contain an amount of arsenic greater than 20 ppm while the amount of arsenic in crude oil is generally in the area of ppb (parts per billion). All these metal compounds are poisons of catalysts. In particular, they irreversibly poison the hydro-treatment and hydrogenation catalysts by gradually depositing on the active surface.
- Conventional metal compounds and some of the arsenic are found mainly in heavy cuts and are removed by settling on the catalyst.
- products containing arsenic are able to generate volatile compounds, these can be found partly in lighter cuts and can, therefore, poison the catalysts of the subsequent transformation processes, at the same time. refining or petrochemicals.
- shale oils generally contain sandy sediments from oil shale deposits from which shale oils are extracted. These sandy sediments can create clogging problems, especially in fixed bed reactors.
- shale oils contain waxes which give them a pour point higher than the ambient temperature, preventing their transport in oil pipelines.
- patent document FR2197968 describes a process for the filtration and hydrogenation of shale oils or oil sands oils containing particles, comprising the steps of (a) continuously passing said oil to the bottom of a reactor in admixture with hydrogen, (b) intermittently feeding catalyst at the reactor head and removing catalyst and entrained particles at the bottom of the reactor to effect catalyst transfer through the reactor, (c) measuring the drop pressure line between the bottom and the reactor head, and (d) adjusting the catalyst flow rate to correct the pressure drop at a preselected pressure which corresponds to a desired filtration rate in the reactor.
- the method described in FR2197968 is particularly silent on the use of independent sections of hydro-treatment of naphtha and diesel fractions.
- US 6153087 discloses a heavy charge conversion process including bubbling bed conversion and hydrocracking. The process is applied to various heavy feedstocks having an initial boiling point of at least 300 ° C.
- the present invention aims to improve the known processes for converting hydrocarbon feedstocks comprising a shale oil, in particular by increasing the yield of fuel bases for a combination of steps having a specific sequence, and a treatment adapted to each fraction derived from the oils of shale.
- the object of the present invention is to obtain products of good quality having in particular a low content of sulfur, nitrogen and arsenic, preferably respecting the specifications.
- Another objective is to propose a simple process, that is to say with the least necessary steps, while remaining effective, to limit investment costs.
- the present invention is defined as a hydrocarbon feed conversion process comprising at least one shale oil having a nitrogen content of at least 0.1%, often at least 1% and very often at least 2% by weight, characterized in that it comprises the following steps:
- a hydroconversion section in the presence of hydrogen, said section comprising at least one ebullating bed reactor operating at an upward flow of liquid and gas and containing at least one supported hydroconversion catalyst,
- step b) The effluent obtained in step a) is sent, at least in part, and often entirely, into a fractionation zone from which a fraction of a fraction is recovered by atmospheric distillation. gaseous, a naphtha fraction, a diesel fraction and a heavier fraction than diesel,
- said naphtha fraction is treated, at least in part, and often completely in a first hydrotreating section in the presence of hydrogen, said first section comprising at least a first fixed bed reactor containing at least a first catalyst hydro treatment,
- Said gas oil fraction is treated, at least in part, and often completely in a second hydrotreating section in the presence of hydrogen, said second section comprising at least a second fixed bed reactor containing at least a second catalyst hydro treatment, and
- the hydroconversion section of step a) comprises from one to three, and preferably two, reactors in series, and the first and second hydro-treatment sections of steps c) and d) each independently comprise from one to three reactors in series.
- the hydrocarbon feedstock comprising shale oil is subjected to ebullated bed hydroconversion.
- Bubble bed technology allows, compared to fixed bed technology, to treat highly contaminated loads of metals, heteroatoms and sediments, such as shale oils, while having conversion rates generally greater than
- the effluent obtained in the hydroconversion stage is then fractionated by atmospheric distillation, making it possible to obtain different fractions for which a treatment specific to each fraction is carried out thereafter.
- Atmospheric distillation makes it possible, in a single step, to obtain the various desired fractions
- the light fractions (naphtha and gas oil) contain less contaminants and can therefore be processed in a fixed bed section generally having improved hydrogenation kinetics relative to the bubbling bed.
- the operating conditions may be milder due to the limited contaminant content. Providing a treatment for each fraction makes it possible to have a better operability according to the desired products. Depending on the operating conditions chosen (more or less severe), it is possible to obtain either a fraction that can be sent to a fuel pool, or a finished product that meets the specifications (sulfur content, smoke point, cetane, aromatic content, etc.). ) in force.
- the fixed bed hydrotreatment sections preferably comprise, upstream of the hydro-treatment catalytic beds, specific guard beds for the arsenic and silicon compounds optionally contained in the naphtha and / or diesel fractions.
- the arsenic compounds escaping the ebullating bed are fixed in the guard beds, avoiding poisoning the downstream catalysts, and making it possible to obtain fuel bases that are heavily depleted of arsenic.
- Atmospheric distillation also makes it possible to concentrate the most refractory nitrogen compounds in the heavier fraction than the diesel fraction, which in step e) is hydrocracked.
- This hydrocracking step makes it possible to recover the heavier fraction than diesel by producing lighter products and thus to minimize the problems of recovery and economic opportunities of this fraction.
- the hydrocarbon feedstock comprises at least one shale oil or a mixture of shale oils.
- shale oil is used here in its broadest sense and is intended to include any shale oil or a shale oil fraction, which contains nitrogenous impurities. This includes crude shale oil, whether obtained by pyrolysis, solvent extraction or other means, shale oil that has been filtered to remove solids, or that has been treated by a or more solvents, chemicals, or other treatments, and which contains nitrogenous impurities.
- shale oil also includes shale oil fractions obtained by distillation or other fractionation technique.
- the shale oils used in the present invention generally have a Conradson carbon content of at least 0.1% by weight and generally at least 5% by weight, an asphaltene content (IP143 / C7 standard) of at least 1%, often at least 2% by weight.
- Their sulfur content is generally at least 0.1%, often at least 1% and very often at least 2% or even up to 4% or even 7% by weight.
- the amount of metals they contain is generally at least 5 ppm by weight, often at least 50 ppm by weight, and typically at least 100 ppm by weight or at least 200 ppm by weight.
- Their nitrogen content is generally at least 0.5%, often at least 1% and often at least 2% by weight.
- Their arsenic content is generally greater than 1 ppm by weight, and up to 50 ppm by weight.
- the process according to the present invention aims at converting shale oils.
- the filler may also contain, in addition to shale oil, other synthetic liquid hydrocarbons, particularly those containing a significant amount of organic cyclic nitrogen.
- hydrocarbon feeds can also supplement shale oil or shale oil blend.
- the feeds are selected from the group consisting of coal derived oils, heavy tar oils and oil sands, vacuum distillates and straight run residues, vacuum distillates and unconverted residues from conversion processes such as, for example, those derived from distillation to coke (coking), products resulting from a hydroconversion of heavy-duty fixed bed, products resulting from ebullating bed hydroconversion processes, and oils that are desalphated with solvents
- the fillers may also contain light cutting oil (LCO for "light cycle oil” in English) of various origins, heavy cutting oil (HCO for "heavy cycle oil” in English) of various origins, and also diesel fuel cuts from catalytic cracking generally having a distillation range of about 150 ° C to about 650 ° C.
- the fillers may also contain aromatic extracts obtained in the context of the manufacture of lubricating oils.
- the fillers can also be prepared and used in a mixture, in all proportions.
- the hydrocarbons added to the shale oil or the shale oil mixture can represent from 20 to 60% by weight of the total hydrocarbon feedstock (shale oil or mixture of shale oils + added hydrocarbons), or even % to 90% by weight.
- Hydroconversion is understood to mean hydrogenation reactions, hydro-treatment, hydrodesulfurization, hydrodenitrogenation, hydrodemetallation and hydrocracking.
- the operation of the bubbling bed catalytic reactor including the recycle of reactor liquids upwardly through the agitated catalyst bed, is generally well known.
- Bubbling bed technologies use supported catalysts, generally in the form of extrudates whose diameter is generally of the order of 1 mm or less than 1 mm, for example greater than or equal to 0.7 mm.
- the catalysts remain inside the reactors and are not evacuated with the products.
- the catalytic activity can be kept constant by the on-line replacement (addition and withdrawal) of the catalyst. It is therefore not necessary to stop the unit to change the spent catalyst, nor to increase the reaction temperatures along the cycle to compensate for the deactivation.
- working with constant operating conditions provides consistent yields and product qualities throughout the catalyst cycle.
- the conditions of step a) of treating the feedstock in the presence of hydrogen are usually conventional conditions of boiling bed hydroconversion of a liquid hydrocarbon fraction. It is usually carried out under a total pressure of 2 to 35 MPa, preferably 10 to 20 MPa, at a temperature of 300.degree.
- the hourly space velocity (WH) and the hydrogen partial pressure are important factors that are chosen according to the characteristics of the product to be treated and the desired conversion. Most often, the WH is in a range of from 0.2 h -1 to 1.5 h 1 and preferably from 0.4 h 1 to 1 h 1 .
- the amount of hydrogen mixed with the feed is usually 50 to 5000 normal cubic meters (Nm 3 ) per cubic meter (m 3 ) of load liquid, and most often from 100 to 1000 Nm 3 / m 3 , and preferably from 300 to 500 Nm 3 / m 3 ;
- this hydroconversion step a) can be carried out under the conditions of the T-STAR® process, as described for example in the article Heavy Oil Hydroprocessing, published by Aiche,
- the hydrogen needed for hydroconversion (and subsequent hydrotreatment) can come from steam reforming hydrocarbons (methane) or gas from oil shale during the production of shale oils.
- the catalyst of step a) is preferably a conventional granular hydroconversion catalyst comprising on an amorphous support at least one metal or metal compound having a hydro-dehydrogenating function.
- a catalyst is used whose porous distribution is suitable for the treatment of metal-containing fillers.
- the hydro-dehydrogenating function may be provided by at least one Group VIII metal selected from the group consisting of nickel and / or cobalt, optionally in combination with at least one Group VIB metal selected from the group consisting of molybdenum and / or tungsten.
- a catalyst comprising from 0.5 to 10% by weight of nickel and preferably from 1 to 5% by weight of nickel (expressed as nickel oxide NiO) and from 1 to 30% by weight of molybdenum may be used, preferably from 5 to 20% by weight of molybdenum (expressed as molybdenum oxide M0O3), on an amorphous mineral support.
- the total content of Group VIB and VIII metal oxides is often from 5 to 40% by weight and generally from 7 to 30% by weight.
- the weight ratio expressed as metal oxide between metal (or metals) of group VI on metal (or metals) of group VIII is, in general, from 20 to 1 and most often from 10 to 2.
- the support of the catalyst will for example be chosen from the group formed by alumina, silica, silica-aluminas, magnesia, clays and mixtures of two or more of these minerals.
- This support may also contain other compounds, for example oxides chosen from the group formed by boron oxide, zirconia, titanium oxide and phosphoric anhydride. Most often an alumina support is used, and very often a support of alumina doped with phosphorus and possibly boron.
- the concentration of phosphorus pentoxide P2O5 is usually less than about 20% by weight and most often less than about 10% by weight and at least 0.001% by weight.
- the concentration of B2O3 boron trioxide is usually from about 0 to about 10% by weight.
- the alumina used is usually ⁇ (gamma) or ⁇ (eta) alumina.
- This catalyst is most often in the form of extruded.
- the catalyst of step a) is based on nickel and molybdenum, doped with phosphorus and supported on alumina.
- the catalysts used in the process according to the present invention may be subjected to a sulphurization treatment making it possible, at least in part, to convert the metal species into sulphides before they come into contact with the feedstock. treat.
- This activation treatment by sulfurization is well known to those skilled in the art and can be performed by any method already described in the literature either in-situ, that is to say in the reactor, or ex-situ.
- the spent catalyst is partly replaced by fresh catalyst by withdrawal at the bottom of the reactor and introduction to the top of the fresh or new catalyst reactor at regular time interval, for example by spot addition, or almost continuously.
- fresh catalyst can be introduced every day.
- the replacement rate of the spent catalyst with fresh catalyst can be, for example, from about 0.05 kg to about 10 kg per m 3 of filler.
- This withdrawal and replacement are carried out using devices allowing the continuous operation of this hydroconversion stage.
- the unit usually comprises a recirculation pump for maintaining the bubbling bed catalyst by continuously recycling at least a portion of the liquid withdrawn at the top of the reactor and reinjected at the bottom of the reactor. It is also possible the spent catalyst withdrawn from the reactor is sent to a regeneration zone in which the carbon and sulfur contained therein are removed, and then said regenerated catalyst is returned to the hydroconversion reactor of step a).
- the operating conditions coupled with the catalytic activity make it possible to obtain conversion rates of the feedstock that can range from 50 to 95%, preferably from 70 to 95%.
- the conversion rate mentioned above is defined as the mass fraction of the feed at the inlet of the reaction section minus the mass fraction of the heavy fraction having a boiling point greater than 343 ° C. at the outlet of the reaction zone. reaction section, all divided by the mass fraction of the feed at the inlet of the reaction section.
- the bubbling bed technology makes it possible to treat highly contaminated loads of metals, sediments and heteroatoms, without encountering problems of loss of pressure or clogging known in the case of use of fixed bed.
- Metals such as nickel, vanadium, iron and arsenic are largely removed from the charge by settling on the catalysts during the reaction. The remaining arsenic (volatile) will be eliminated during the hydro treatment stages by specific guard beds.
- the sediments contained in the shale oils are also removed by replacing the catalyst in the bubbling bed without disturbing the hydroconversion reactions. These steps also make it possible to remove most of the nitrogen by hydrodenitrogenation, leaving only the most refractory nitrogen compounds.
- step a) makes it possible to obtain an effluent with a very low nitrogen content relative to that of the feed, of the order of 3 times to 10 times less than in the feed.
- the effluent obtained in step a) of hydroconversion is sent at least partly, and preferably entirely, into a fractionation zone from which a gaseous fraction, a naphtha fraction, a fraction, or a fraction are recovered by atmospheric distillation. diesel and a heavier fraction than the diesel fraction.
- the effluent obtained in step a) is fractionated by atmospheric distillation into a gaseous fraction having a point boiling point below 50 ° C, a naphtha fraction boiling between about 50 ° C and 150 ° C, a gas oil fraction boiling between about 150 ° C and 370 ° C, and a heavier fraction than the diesel fraction boiling generally above above 340 ° C, preferably above 370 ° C.
- the naphtha and diesel fractions are then separately sent to hydrotreatment sections.
- the heavier fraction than the gas oil fraction is sent to the hydrocracking section of step e).
- the gaseous fraction contains gases (3 ⁇ 4, H2S, NH3, H2O, CO2,
- the C3 and C4 hydrocarbons may, after purification treatments used to construct LPG products (liquefied petroleum gas).
- Incondensable gases (C 1-C2) are generally used as internal fuel for the heating furnaces of hydroconversion and / or hydrotreatment and / or hydrocracking reactors.
- the process according to the invention comprises a hydrocracking step [step e)], in which at least a part, and preferably all of the heavier fraction obtained in step b), is sent to a hydrocracking section in the presence of hydrogen, wherein said heavier fraction than gas oil is conventionally treated under conditions well known to those skilled in the art, to produce a second gaseous fraction, a second naphtha fraction, a second diesel fraction and a second heavier fraction than diesel, called "unconverted oil" according to the English terminology.
- the second naphtha fraction will for example be treated, at least in part, and often entirely in the hydrotreatment section of step c).
- the second diesel fraction will be, for example, at least in part, often in full, sent to fuel tanks (pools) and / or recycled at least partially, or even completely, in step d) of hydrotreatment.
- the second heavier fraction than diesel will be, for example, at least in part, or even in all, sent to the tank (pool) fuel oil and / or recycled at least partially, or all in the hydroconversion step a) and / or hydrocracking step e).
- the hydrocracking effluents obtained at the end of step e), can also be separated into a gas oil fraction and less heavy than diesel, and a second fraction heavier than diesel.
- This gas oil fraction and less heavy than diesel is a mixture of a second gas fraction, a second naphtha fraction and a second gas oil fraction.
- the gas oil fraction and less heavy than diesel can be sent, at least in part, and often in full, in a fractionation zone of step b).
- Ni-Mo on alumina Ni-Mo on zeolite, Ni-Mo and Ni-W on silica-alumina, Co-Mo on alumina and Co-Mo on zeolite.
- These catalysts can also contain, depending on the desired properties, other metals chosen from transition metals and rare earths, in the form of traces or in relatively large proportions (from less than 1% by weight to 30% by weight). weight relative to the total metal load) in metallic form or in oxide form.
- Hydrocracking is carried out in a vertical reactor, generally in downflow mode.
- the feed is preheated in the presence of hydrogen before introduction to the reactor head.
- a booster of hydrogen is supplied between each catalyst bed (quench gas) to reduce the temperature. This quench gas is then intimately mixed with the charge, usually in devices called “quench boxes”.
- the choice of the catalyst and the operating conditions depend on the desired products as a function of the feedstock treated.
- the hydrocracking units are usually operated on temperatures between 320 ° C and 450 ° C, preferably between 350 ° C and 400 ° C, with hourly mass velocities of between 0.3 and 7 h 1 , with a hydrogen / charge ratio between 300 and 1000 Nm 3 of hydrogen / m 3 of charge.
- MHC the acronym for “Mild HydroCracking” which have service pressures usually between 8 and 15 MPa, more generally between 10 and 12 MPa
- DHC acronym for “Distillate HydroCracking” which have service pressures usually between 12 and 20 MPa, more generally between 15 and 20 MPa.
- Step e) of hydrocracking of the heavier fraction than gas oil operates at a temperature of between 350 ° C. and 450 ° C., preferably between 370 ° C. and 425 ° C., at a total pressure of between 10 and 20 MPa. , preferably between 15 and 18 MPa, at an hourly mass velocity of between 0.3 and 7 h 1 , preferably between 0.5 and 1.5 h 1 , and at a hydrogen / charge ratio of between 100 and 5000 Nm 3 / m 3 , preferably between 1000 and 2000 Nm 3 / m 3 .
- an MHC in the context of the invention, will produce effluents converted to about 10 to 20%, sufficient to constitute a synthetic crude oil, after mixing with the various naphtha and diesel cuts resulting from the process. This synthetic crude can then be shipped to a conventional refinery.
- a DHC in the context of the invention would produce effluents converted to 80 to 90%, which would direct the products rather to commercialization as bases for the manufacture of fuels.
- the naphtha and diesel fractions are then separately subjected to a fixed bed hydrotreatment [steps c] and d]].
- hydrotreating is meant hydrodesulfurization, hydrodenitrogenation and hydrodemetallation reactions.
- the objective is, according to the operating conditions chosen in a more or less severe way, to bring the different cuts to the specifications (sulfur content, smoke point, cetane, aromatic content, etc.) or to produce an oil gross synthetic.
- the fact of treating the naphtha fraction in a hydro-treatment section and the gas oil fraction in another hydro-treatment section makes it possible to have a better operability in the operating conditions, in order to be able to bring each cut to the required specifications with maximum yield in one step per cut. Thus, fractionation after hydro treatment is not necessary.
- the difference between the two hydro treatment sections is based more on differences in operating conditions than on the choice of catalyst.
- the fixed bed hydrotreatment sections preferably comprise, upstream of the hydrotreating catalytic beds, specific guard beds for the arsenic compounds (arsenic compounds) and silicon optionally contained in the naphtha and / or naphtha fractions. or diesel.
- the arsenic compounds having escaped the bubbling bed (because they are generally relatively volatile) are fixed in the guard beds, thus avoiding poisoning the catalysts downstream, and making it possible to obtain fuel bases that are heavily depleted of arsenic.
- Guard beds for removing arsenic and silicon from naphtha or diesel cuts are known to those skilled in the art. They include for example an absorbent mass comprising nickel deposited on a suitable support (silica, magnesia or alumina) as described in FR2617497, or an absorbent mass comprising copper on a support, as described in FR2762004. Mention may also be made of guard beds marketed by AXENS: ACT 979, ACT989, ACT961, ACT981.
- each hydrotreating section is adapted to the feedstock to be treated.
- the operating conditions for hydrotreatment of the naphtha fraction are generally milder than those of the diesel fraction.
- step c) In the hydrotreatment step of the naphtha fraction [step c)], it is usually carried out under an absolute pressure of 4 to 15 MPa, often 10 to 13 MPa.
- the temperature in this step c) is usually 280 ° C to 380 ° C, often 300 ° C to 350 ° C. This temperature is usually adjusted according to the desired level of hydrodesulfurization.
- the hourly space velocity (WH) is in a range from 0.1 h 1 to 5 h 1 , and preferably from 0.5 h 1 to 1 h 1 .
- the amount of hydrogen mixed with the charge is usually from 100 to 5000 normal cubic meters (Nm 3 ) per cubic meter (m 3 ) of liquid charge, and most often from 200 to 1000 Nm 3 / m 3 , and preferably from 300 to 500 Nm 3 / m 3 .
- Use is advantageously carried out in the presence of hydrogen sulphide (for the sulphidation of the catalyst) and the partial pressure of the hydrogen sulphide is usually 0.002 times at 0.1 times, and preferably 0.005 times at 0.05 times the total pressure. .
- step d) In the hydro-treatment step of the gas oil fraction [step d)], it is usually carried out under an absolute pressure of 7 to 20 MPa, often 10 to 15 MPa.
- the temperature in this step d) is usually 320 ° C to 450 ° C, often 340 ° C to 400 ° C. This temperature is usually adjusted according to the desired level of hydrodesulfurization.
- the hourly mass velocity is between 0, 1 and 1 h 1 .
- the hourly space velocity (WH) is in a range from 0.2 h 1 to 1 h 1 , and preferably from 0.3 h 1 to 1 h 1
- the amount of hydrogen mixed with the feed is usually 100 to 5000 normal cubic meters (Nm 3 ) per cubic meter (m 3 ) of liquid feed, and most often 200 to 1000 Nm 3 / m 3 , and preferably from 300 to 500 Nm 3 / m 3 .
- Useful operation is carried out in the presence of hydrogen sulfide, and the partial pressure of hydrogen sulfide is usually 0.002 times to 0.1 times, and preferably 0.005 times to 0.05 times the total pressure.
- the ideal catalyst In the hydrotreating sections, the ideal catalyst must have a high hydrogenating power, so as to achieve a deep refining of the products, and to obtain a significant lowering of the sulfur and nitrogen content.
- the hydro-treatment sections operate at a relatively low temperature, which is in the sense of deep hydrogenation and coking limitation of the catalyst. It would not be departing from the scope of the present invention to use, in the hydro-treatment sections, simultaneously or successively, a single catalyst or several different catalysts.
- the hydro treatment of steps c) and d) is carried out industrially, in one or more liquid downflow reactors.
- step c) and d) the same type of catalyst is used, the catalysts in each section being identical or different.
- At least one fixed bed of conventional hydrotreatment catalyst comprising on an amorphous support at least one metal or metal compound having a hydro-dehydrogenating function.
- the hydro-dehydrogenating function may be provided by at least one Group VIII metal selected from the group consisting of nickel and / or cobalt, optionally in combination with at least one Group VIB metal selected from the group consisting of molybdenum and / or tungsten.
- a catalyst comprising from 0.5 to 10% by weight of nickel and preferably from 1 to 5% by weight of nickel (expressed as nickel oxide NiO) and from 1 to 30% by weight of molybdenum can be used. preferably from 5 to 20% by weight of molybdenum (expressed as molybdenum oxide M0O3), on an amorphous mineral support.
- the total metal oxide content of Groups VI and VIII is often from about 5 to about 40% by weight, and generally from about 7 to 30% by weight, and the weight ratio of metal oxide to metal (or metals) of group VIB on metal (or metals) of group VIII is generally from about 20 to about 1, and most often from about 10 to about 2.
- the support is for example chosen from the group formed by alumina, silica, silica-aluminas, magnesia, clays and mixtures of at least two of these minerals.
- This support may also contain other compounds, for example oxides chosen from the group formed by boron oxide, zirconia, titanium oxide and phosphoric anhydride.
- an alumina support is used and very often a support of alumina doped with phosphorus and possibly boron.
- the concentration of phosphorus pentoxide P2O5 is usually less than about 20% by weight and most often less than about 10% by weight, and is at least 0.001% by weight.
- the concentration of B2O3 boron trioxide is usually from about 0 to about 10% by weight.
- the alumina used is usually a ⁇ (gamma) or ⁇ (eta) alumina. This catalyst is most often in the form of beads or extrudates.
- the catalysts used in the process according to the present invention are preferably subjected to a sulphurization treatment making it possible, at least in part, to transform the metallic species into sulphide before they come into contact with the charge. treat.
- This sulphidation activation treatment is well known to those skilled in the art and can be performed by any method already described in the literature either in-situ, that is to say in the reactor, or ex-situ.
- stage c) of the naphtha section makes it possible to obtain a section containing at most 1 ppm by weight of nitrogen, preferably at most 0.5 ppm of nitrogen and at most 5 ppm by weight of sulfur, preferably at most 0.5 ppm of sulfur.
- stage d) of the diesel fraction makes it possible to obtain a section containing at most 100 ppm of nitrogen, preferably at most 20 ppm of nitrogen and at most 50 ppm of sulfur, preferably at most 10 ppm sulfur.
- the invention relates to a synthetic crude obtained by a method according to one of its previous aspects.
- the invention relates to an installation for treating a shale oil implementing a method according to one of its previous aspects.
- Such an installation includes:
- a hydroconversion section in the presence of hydrogen comprising at least one bubbling bed reactor operating at an upward flow of liquid and gas and containing at least one supported hydroconversion catalyst,
- a fractionation zone by atmospheric distillation a first hydrotreating section in the presence of hydrogen, comprising at least one fixed bed reactor containing at least one hydro-treatment catalyst,
- a second hydrotreating section in the presence of hydrogen comprising at least one fixed bed reactor containing at least one hydro-treatment catalyst,
- the hydroconversion section is connected to the fractionation zone in order to feed it with effluents from the hydroconversion section, a first conduit (or line) connects the fractionation zone to the first hydrotreatment section, a second conduit (or line) connects the fractionation zone to the second hydrotreatment section and a third conduit connects the fractionation zone. at the hydrocracking section.
- the plant may further comprise one or more recycle lines for returning the different fractions to the hydroconversion section, the hydrocracking section, or any of the first and second hydrotreatment sections.
- FIG. 1 shows schematically the method according to the present invention.
- FIG. 2 diagrammatically represents a variant of the process in which the separation of several sections takes place in the same distillation unit.
- the feedstock comprising the shale oil (1) to be treated enters via a line (2) in a bubbling bed hydroconversion section (3), in the presence of hydrogen (4), hydrogen (4) being introduced by a line (5).
- the effluent from the boiling bed hydroconversion section (3) is sent via a line (6) to an atmospheric distillation column (7), at the outlet of which a gaseous fraction (8), a naphtha fraction is recovered. (9), a gas oil fraction (10) and a heavier fraction than the gas oil fraction (1 1).
- the gaseous fraction (8) and a second gaseous fraction (26) containing hydrogen can be purified (not shown) to recycle the hydrogen and reinject it (i) into the bubbling bed hydroconversion section.
- the two hydrotreatment sections (12) and (13) are fed with hydrogen via lines (14) and (15).
- the heavier fraction than the gas oil fraction (1 1) is sent to the hydrocracking section (20) by the line (21).
- the hydrocracking effluents (23) are sent via a line (24) into a separation section (25) at the outlet of which the second gaseous fraction (26) is recovered, a second naphtha fraction (27), a second fraction diesel (28), and a second heavier fraction than diesel (29).
- the second naphtha fraction (27) can be sent wholly or partly to the hydro-treatment section (12) via a line (30).
- the second diesel fraction (28) is preferentially sent to the diesel fuel pool or can be sent wholly or partly to the hydro-treatment section (13) via a line (31).
- the second heavier fraction than diesel (29) may be (i) withdrawn, and / or (ii) returned wholly or partly to the hydrocracking section (20) via a line (32), and / or (iii) ) returned in whole or in part to the bubbling bed hydroconversion section (3) via a line (33).
- the charge comprising the shale oil (1) to be treated enters a line (2) in a bubbling bed hydroconversion section
- the effluent from the boiling bed hydroconversion section (3) is sent via a line (6) to an atmospheric distillation column (7), at the outlet of which a gaseous fraction (8), a naphtha fraction is recovered. (9), a gas oil fraction (10) and a heavier fraction than the gas oil fraction (1 1).
- the gaseous fraction (8), containing hydrogen can be purified (not shown) to recycle hydrogen and reinject it (i) into the bubbling bed hydroconversion section (3) via line (2) and / or (5), and / or (ii) in a hydro-treatment section (12) via a line (18) and / or
- the naphtha fraction (9) is sent to the fixed bed hydro-treatment section (12) at the outlet from which a naphtha fraction (16) depleted of impurities is recovered.
- the gas oil fraction (10) is sent to the fixed bed hydro-treatment section (13) at the outlet of which a diesel fuel fraction (17) depleted in impurities.
- Both hydro treatment sections (12) and (13) are fed with hydrogen via lines (14) and (15).
- the heavier fraction than the gas oil fraction (1 1) is sent to the hydrocracking section (20) via the line (21).
- the hydrocracking effluents (23) are sent via a line (24) into a separation section (34) at the outlet of which a mixture (35) comprising a second gaseous fraction, a second naphtha fraction, is recovered at the head. and a second gas oil fraction (28), and, at the bottom, a second heavier fraction than diesel (29).
- the mixture (35) is sent via a line (36) to the distillation column (7).
- the second heavier fraction than diesel (29) may be (i) withdrawn, and / or (ii) returned wholly or partly to the hydrocracking section (20) via a line (32), and / or (iii) ) returned in whole or in part to the bubbling bed hydroconversion section (3) via a line (33).
- a shale oil is processed, the characteristics of which are presented in Table 1.
- the shale oil is treated in a bubbling bed reactor containing the HOC 458 commercial catalyst from Axens.
- the operating conditions for implementation are as follows:
- WH global 0.3 h 1
- the liquid products from the reactor are fractionated by atmospheric distillation into a naphtha fraction (C5 + - 150 ° C), a gas oil fraction (150-370 ° C) and a residual fraction 370 ° C + which constitutes a heavier fraction than gas oil.
- the naphtha fraction is subjected to a fixed bed hydrotreatment using a NiMo catalyst on alumina.
- the operating conditions are as follows:
- WH global 1 h 1
- the gas oil fraction is subjected to a hydrotreatment in fixed bed using a NiMo catalyst on alumina.
- the operating conditions are as follows:
- the heavier fraction than gas oil is then subjected to hydrocracking using catalysts containing NiMo on alumina, NiW on silica alumina and NiMo on zeolite.
- This charge preheated in the presence of hydrogen is introduced at the top of a vertical reactor containing 5 catalyst beds.
- the operating pressure is 16 MPa absolute
- the temperature is 380 ° C
- the hydrogen / charge ratio is 1200 Nm 3 / m 3
- the WH is ⁇ , ⁇ 1 .
- a booster of hydrogen is supplied between each catalyst bed (quench gas) to reduce the temperature. This quench gas is intimately mixed with the charge in devices called "quench boxes".
- the hydrocracked hydrocarbons are drawn off at the bottom of the reactor and are cooled. They are directed to a fractionation unit from which the gases are isolated at the top, at least one naphtha cut, at least one diesel fuel cut, and at least one cut heavier than diesel bottom.
- Table 2 gives the properties of the different loads of each step as well as the yields obtained in the different units and the overall yield. It is then observed that starting from 100% by weight of shale oil, we obtain 93.9% by weight of products (LPG, naphtha, middle distillates) to commercial specifications
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RU2013134377/04A RU2592688C2 (ru) | 2010-12-24 | 2011-12-16 | Способ конверсии углеводородного сырья, содержащего сланцевое масло, путем гидроконверсии в кипящем слое, фракционирования с помощью атмосферной дистилляции и гидрокрекинга |
BR112013015358A BR112013015358A2 (pt) | 2010-12-24 | 2011-12-16 | processo de conversão carga hidrocarbonato, compreendendo um óleo de xisto por hidroconversão em camada fervente, fracionado por destilação atmosférica e hidrocraqueamento |
US13/997,330 US20130319908A1 (en) | 2010-12-24 | 2011-12-16 | Method for converting hydrocarbon feedstock comprising a shale oil by hydroconversion in an ebullating bed, fractionation by atmospheric distillation and hydrocracking |
CN201180062159.0A CN103328613B (zh) | 2010-12-24 | 2011-12-16 | 通过在沸腾床中加氢转化、通过常压蒸馏分馏和加氢裂化转化包含页岩油的烃原料的方法 |
CA2816666A CA2816666C (fr) | 2010-12-24 | 2011-12-16 | Procede de conversion de charge hydrocarbonee comprenant une huile de schiste par hydroconversion en lit bouillonnant, fractionnement par distillation atmospherique, et hydrocraquage |
AU2011347042A AU2011347042B2 (en) | 2010-12-24 | 2011-12-16 | Method for converting hydrocarbon feedstock comprising a shale oil by hydroconversion in an ebullating bed, fractionation by atmospheric distillation and hydrocracking |
IL226641A IL226641A (en) | 2010-12-24 | 2013-05-29 | A method for converting hydrocarbon raw materials containing shale oil through hydroconversion into a floating substrate, separating into components through atmospheric distillation and hydrocarbon breaking |
MA36030A MA34752B1 (fr) | 2010-12-24 | 2013-06-20 | Procede de conversion de charge hydrocarbonee comprenant une huile de schiste par hydroconversion en lit bouillonnant, fractionnement par distillation atmosphérique, et hydrocraquage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1061246 | 2010-12-24 | ||
FR1061246A FR2969648B1 (fr) | 2010-12-24 | 2010-12-24 | Procede de conversion de charge hydrocarbonee comprenant une huile de schiste par hydroconversion en lit bouillonnant, fractionnement par distillation atmospherique, et hydrocraquage |
Publications (2)
Publication Number | Publication Date |
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WO2012085407A1 true WO2012085407A1 (fr) | 2012-06-28 |
WO2012085407A8 WO2012085407A8 (fr) | 2013-07-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2011/053021 WO2012085407A1 (fr) | 2010-12-24 | 2011-12-16 | Procède de conversion de charge hydrocarbonate comprenant une huile de schiste par hydre conversion en lit bouillonnant, fractionnement par distillation atmosphérique, et hydrocraquage |
Country Status (11)
Country | Link |
---|---|
US (1) | US20130319908A1 (fr) |
CN (1) | CN103328613B (fr) |
AU (1) | AU2011347042B2 (fr) |
BR (1) | BR112013015358A2 (fr) |
CA (1) | CA2816666C (fr) |
EE (1) | EE05782B1 (fr) |
FR (1) | FR2969648B1 (fr) |
IL (1) | IL226641A (fr) |
MA (1) | MA34752B1 (fr) |
RU (1) | RU2592688C2 (fr) |
WO (1) | WO2012085407A1 (fr) |
Cited By (2)
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FR3004722A1 (fr) * | 2013-04-23 | 2014-10-24 | IFP Energies Nouvelles | Procede de conversion de charges d'origines renouvelables en bases carburants comprenant une etape d'hydrotraitement en lit bouillonnant et une etape d'hydroisomerisation en lit fixe |
FR3030568A1 (fr) * | 2014-12-18 | 2016-06-24 | Axens | Procede de conversion profonde de residus maximisant le rendement en gazole |
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US9080113B2 (en) | 2013-02-01 | 2015-07-14 | Lummus Technology Inc. | Upgrading raw shale-derived crude oils to hydrocarbon distillate fuels |
CN104560173B (zh) * | 2013-10-29 | 2016-11-16 | 中国石油化工股份有限公司 | 一种重油加氢转化方法 |
FR3015514B1 (fr) | 2013-12-23 | 2016-10-28 | Total Marketing Services | Procede ameliore de desaromatisation de coupes petrolieres |
US10527546B2 (en) * | 2015-06-10 | 2020-01-07 | Saudi Arabian Oil Company | Characterizing crude oil using laser induced ultraviolet fluorescence spectroscopy |
US9803505B2 (en) | 2015-08-24 | 2017-10-31 | Saudi Arabian Oil Company | Power generation from waste heat in integrated aromatics and naphtha block facilities |
US9803513B2 (en) * | 2015-08-24 | 2017-10-31 | Saudi Arabian Oil Company | Power generation from waste heat in integrated aromatics, crude distillation, and naphtha block facilities |
TWI736611B (zh) * | 2016-04-25 | 2021-08-21 | 荷蘭商蜆殼國際研究所 | 用於在低沈降物量下高度轉化重烴之沸騰床方法 |
CN108079911B (zh) * | 2016-11-21 | 2020-02-07 | 北京华石联合能源科技发展有限公司 | 一种上流差速控制裂化加氢的反应系统及其应用 |
US10457878B2 (en) * | 2017-09-20 | 2019-10-29 | Uop Llc | Process for recovering hydrocracked effluent |
EP3870679A1 (fr) * | 2018-10-24 | 2021-09-01 | Haldor Topsøe A/S | Procédé de production de carburant pour l'aviation |
FR3101082B1 (fr) * | 2019-09-24 | 2021-10-08 | Ifp Energies Now | Procédé intégré d’hydrocraquage en lit fixe et d’hydroconversion en lit bouillonnant avec une séparation gaz/liquide améliorée |
US11034895B1 (en) * | 2020-01-22 | 2021-06-15 | Axens SA | Process for production of on specification group III/III+ base oils while preserving base oil yield |
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- 2011-12-16 RU RU2013134377/04A patent/RU2592688C2/ru not_active IP Right Cessation
- 2011-12-16 US US13/997,330 patent/US20130319908A1/en not_active Abandoned
- 2011-12-16 CA CA2816666A patent/CA2816666C/fr not_active Expired - Fee Related
- 2011-12-16 CN CN201180062159.0A patent/CN103328613B/zh not_active Expired - Fee Related
- 2011-12-16 WO PCT/FR2011/053021 patent/WO2012085407A1/fr active Application Filing
- 2011-12-16 BR BR112013015358A patent/BR112013015358A2/pt not_active IP Right Cessation
- 2011-12-16 EE EEP201300024A patent/EE05782B1/et not_active IP Right Cessation
- 2011-12-16 AU AU2011347042A patent/AU2011347042B2/en not_active Ceased
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3004722A1 (fr) * | 2013-04-23 | 2014-10-24 | IFP Energies Nouvelles | Procede de conversion de charges d'origines renouvelables en bases carburants comprenant une etape d'hydrotraitement en lit bouillonnant et une etape d'hydroisomerisation en lit fixe |
FR3030568A1 (fr) * | 2014-12-18 | 2016-06-24 | Axens | Procede de conversion profonde de residus maximisant le rendement en gazole |
US10501695B2 (en) | 2014-12-18 | 2019-12-10 | Axens | Process for the intense conversion of residues, maximizing the gas oil yield |
Also Published As
Publication number | Publication date |
---|---|
FR2969648A1 (fr) | 2012-06-29 |
US20130319908A1 (en) | 2013-12-05 |
IL226641A (en) | 2017-05-29 |
EE05782B1 (et) | 2016-11-15 |
EE201300024A (et) | 2013-10-15 |
CA2816666A1 (fr) | 2012-06-28 |
RU2592688C2 (ru) | 2016-07-27 |
CA2816666C (fr) | 2018-10-23 |
RU2013134377A (ru) | 2015-01-27 |
AU2011347042B2 (en) | 2015-11-19 |
AU2011347042A1 (en) | 2013-05-09 |
BR112013015358A2 (pt) | 2017-07-18 |
CN103328613B (zh) | 2016-03-23 |
FR2969648B1 (fr) | 2014-04-11 |
WO2012085407A8 (fr) | 2013-07-11 |
CN103328613A (zh) | 2013-09-25 |
MA34752B1 (fr) | 2013-12-03 |
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