Recycle Of Bottoms (resid) Patents (Class 208/417)
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Patent number: 11370978Abstract: The present disclosure provides a method and an apparatus for integrating pressurized hydrocracking of heavy oil and coke gasification. A coupled reactor having a cracking section and a gasification section is used in the method: a heavy oil feedstock and a hydrogenation catalyst are fed into a cracking section, to generate light oil-gas and coke; the coke is carried by the coke powder into the gasification section, to generate syngas; a regenerated coke powder is returned to the cracking section; the syngas enters the cracking section and merges with light oil-gas, and enters a gas-solid separator, to separate out first-stage solid particles and second-stage particles in sequence, and a purified oil-gas product is collected; oil-gas fractionation of the purified oil-gas product is performed, and a light oil product and a syngas product are collected. Yield and quality of the light oil can be improved by the method.Type: GrantFiled: September 22, 2020Date of Patent: June 28, 2022Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJINGInventors: Yuming Zhang, Jinsen Gao, Xingying Lan, Chengxiu Wang, Xiaogang Shi
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Patent number: 8518334Abstract: A process for upgrading unconventional or heavy oils such as, tar sands, shale oil, or bitumen. This process may include a coking scheme in which oil-containing solids, of suitable size, are fed directly into the riser of an FCC unit. Contacting a hot stream of solids causes vaporization and produces a gaseous product stream. The gaseous product may be separated out in a separating vessel and coked or unconverted oil-containing solids may be transferred to a gasifier for combustion at high temperatures to remove the coke and residual oil. Syngas from the gasifier may be converted to hydrogen using a water gas shift reaction. The hydrogen may be used for hydroprocessing.Type: GrantFiled: March 31, 2010Date of Patent: August 27, 2013Assignee: UOP LLCInventor: Gavin P. Towler
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Patent number: 8287723Abstract: This invention relates to biomass pyrolysis through the use of a hot liquid refinery feedstock as a heat transfer medium, preferably a vacuum gas oil feedstock.Type: GrantFiled: January 26, 2011Date of Patent: October 16, 2012Assignee: Phillips 66 CompanyInventors: Andreas Jess, Dominic Kaufmann, Daren E. Daugaard
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Patent number: 8206577Abstract: This invention encompasses systems and methods for pretreating a carbonaceous material, comprising heating to a suitable temperature and for a suitable reaction time, a mixture comprising the carbonaceous material, one or more catalysts or catalyst precursors and a hydrocarbonaceous liquid.Type: GrantFiled: April 10, 2009Date of Patent: June 26, 2012Inventors: Alexander E. Kuperman, Jinyi Han
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Patent number: 8123934Abstract: This invention encompasses systems and methods for pretreating a carbonaceous material, comprising heating to a suitable temperature and for a suitable reaction time, a mixture comprising the carbonaceous material, one or more catalysts or catalyst precursors, and a hydrocarbonaceous liquid.Type: GrantFiled: June 18, 2008Date of Patent: February 28, 2012Assignee: Chevron U.S.A., Inc.Inventors: Alexander E. Kuperman, Jinyi Han
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Patent number: 8063258Abstract: A process for producing fuel from biomass is disclosed herein. The process includes torrefying biomass material at a temperature between 80° C. and 300° C. to form particulated biomass having a mean average particle size from about 1 ?m to about 1000 ?m. The particulated biomass is mixed with a liquid to form a suspension, wherein the liquid comprises bio-oil, wherein the suspension includes between 1 weight percent to 40 weight percent particulated biomass. The suspension is fed into a hydropyrolysis reactor; and at least a portion of the particulated biomass of the suspension is converted into fuel.Type: GrantFiled: November 2, 2010Date of Patent: November 22, 2011Assignee: Kior Inc.Inventors: Robert Bartek, Michael Brady, Dennis Stamires
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Patent number: 7744827Abstract: A fuel delivery system for a gas turbine engine includes a catalytic device for treating fuel to increase the usable cooling capability of an endothermic fuel. The catalytic device operates to treat and decompose components within in the fuel to render the fuel non-coking beyond 250° F. The catalytic device includes material that initiates reactions, and decomposition of coke forming components within the fuel to non-coke forming components within the fuel.Type: GrantFiled: February 13, 2004Date of Patent: June 29, 2010Assignee: United Technologies CorporationInventors: Thomas Vanderspurt, Harry Cordatos
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Publication number: 20080290000Abstract: A process for upgrading unconventional or heavy oils such as, tar sands, shale oil, or bitumen. This process may include a coking scheme in which oil-containing solids, of suitable size, are fed directly into the riser of an FCC unit. Contacting a hot stream of solids causes vaporization and produces a gaseous product stream. The gaseous product may be separated out in a separating vessel and coked or unconverted oil-containing solids may be transferred to a gasifier for combustion at high temperatures to remove the coke and residual oil. Syngas from the gasifier may be converted to hydrogen using a water gas shift reaction. The hydrogen may be used for hydroprocessing.Type: ApplicationFiled: May 22, 2007Publication date: November 27, 2008Inventor: Gavin P. Towler
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Patent number: 6936159Abstract: A process for recovering hydrocarbons from coal or oil shale is disclosed. The process involves the steps of forming a pulp of finely divided coal or oil shale in a first reaction bed, adding concentrated sulphuric acid to the first reaction bed, controlling the temperature of the first reaction bed to produce a hydrocarbon mixture, and deacidifying the hydrocarbon mixture.Type: GrantFiled: November 23, 2000Date of Patent: August 30, 2005Assignee: Add Astra Environment Technologies Pty LtdInventor: Percy Evan Kean
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Patent number: 6511937Abstract: The invention described herein is directed to (a) slurry hydroprocessing (SHP) of a feed under SHP conditions; (b) deasphalting, under deasphalting conditions the product obtained from said step (a) and recovering a solvent deasphalted oil and solvent deasphalted rock; (c) calcining said solvent deasphalted rock at a temperature of ≦about 1200° F. to produce an ash catalyst precursor; (d) recycling said ash catalyst precursor to said step (a).Type: GrantFiled: October 3, 2000Date of Patent: January 28, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Roby Bearden, Jr., Zhiguo Hou, Martin Leo Gorbaty, David Thomas Ferrughelli, Ronald Damian Myers
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Patent number: 5783065Abstract: A process is disclosed for coal liquefaction in which minute particles of coal in intimate contact with a hydrogenation catalyst and hydrogen are reacted for a very short time at a temperature in excess of 400.degree. C. at a pressure of at least 250 psi to yield over 50% liquids with a liquid to gaseous hydrocarbon ratio in excess of 8:1.Type: GrantFiled: September 25, 1995Date of Patent: July 21, 1998Assignee: University of Utah Research FoundationInventors: Wendell H. Wiser, Alex G. Oblad, Joseph S. Shabtai
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Patent number: 5308477Abstract: A process is disclosed for coal liquefaction in which minute particles of coal in intimate contact with a hydrogenation catalyst and hydrogen arc reacted for a very short time at a temperature in excess of 400.degree. C. at a pressure of at least 1500 psi to yield over 50% liquids with a liquid to gaseous hydrocarbon ratio in excess of 8:1.Type: GrantFiled: September 3, 1992Date of Patent: May 3, 1994Assignee: University of UtahInventors: Wendell H. Wiser, Alex G. Oblad, Joseph S. Shabtai
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Patent number: 5122260Abstract: In the two stage liquefaction of a carbonaceous solid such as coal wherein coal is liquefied in a first stage in the presence of a liquefaction solvent and the first stage effluent is hydrogenated in the presence of a supported hydrogenation catalyst in a second stage, catalyst which has been previously employed in the second stage and comminuted to a particle size distribution equivalent to 100% passing through U.S. 100 Mesh, is passed to the first stage to improve the overall operation.Type: GrantFiled: January 9, 1989Date of Patent: June 16, 1992Assignee: ABB Lummus Crest Inc.Inventors: Avinash Gupta, Marvin I. Greene
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Patent number: 5120429Abstract: In a process for producing distillates from coal by a first stage thermal liquefaction followed by a catalytic hydrogenation, liquefaction solvent is added at points spaced over the length of the thermal liquefaction heater.Coal may be co-processed with petroleum oil by adding pre-hydrogenated oil to the first stage or unhydrogenated oil to the second stage.Type: GrantFiled: July 10, 1987Date of Patent: June 9, 1992Assignee: Lummus Crest Inc.Inventors: Avinash Gupta, Marvin I. Greene
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Patent number: 5096569Abstract: Disclosed is a method for catalytically hydropyrolyzing carbonaceous material to produce liquid products boiling under about 550.degree. C. with reduced amounts of methane being formed. The process comprises (a) treating the carbonaceous material with as hydrogenation catalyst; (b) contacting the so-treated carbonaceous material with an effective amount of hydrogen, at an effective residence time, at a temperature below the critical temperature of rapid methane formation; (c) recovering the resulting liquids, gases, and char; and (d) recycling the char.Type: GrantFiled: January 15, 1991Date of Patent: March 17, 1992Assignee: Exxon Research and Engineering CompanyInventors: Peter S. Maa, Russell R. Chianelli
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Patent number: 5071540Abstract: An improved process for the hydroconversion of coal comprising pretreating coal in an aqeuous carbon monoxide-containing environment, followed by extracting a soluble hydrocarbon material from the coal, and subsequently hydroconverting the extracted material in a hydroconversion reactor with a high catalyst loading to obtain a nearly finished product with low heteroatom levels. The extracted material consists of a relatively hydrogen-rich material which is readily converted to valuable liquid products in high yield. The residue from the extraction stage is relatively hydrogen deficient material which can be gasified to produce hydrogen and carbon monoxide for the hydroconversion and pretreatment stages, respectively.Type: GrantFiled: December 21, 1989Date of Patent: December 10, 1991Assignee: Exxon Research & Engineering CompanyInventors: Claude C. Culross, Steve D. Reynolds
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Patent number: 5045180Abstract: A process for catalytic multi-stage hydrogenation and liquefaction of coal to produce high yields of low-boiling hydrocarbon liquids containing low concentrations of nitogen compounds. First stage catalytic reaction conditions are 700.degree.-800.degree. F. temperature, 1500-3500 psig hydrogen partial pressure, with the space velocity maintained in a critical range of 10-40 lb coal/hr ft.sup.3 catalyst settled volume. The first stage catalyst has 0.3-1.2 cc/gm total pore volume with at least 25% of the pore volume in pores having diameters of 200-2000 Angstroms. Second stage reaction conditions are 760.degree.-870.degree. F. temperature with space velocity exceeding that in the first stage reactor, so as to achieve increased hydrogenation yield of low-boiling hydrocarbon liquid products having at least 75% removal of nitrogen compounds from the coal-derived liquid products.Type: GrantFiled: April 16, 1990Date of Patent: September 3, 1991Assignee: HRI, Inc.Inventor: Alfred G. Comolli
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Patent number: 4994174Abstract: A process and system for low-temperature carbonization of oil shale, oil sands and similar oil-bearing solids includes low-temperature carbonization of oil-bearing solids in a high-pressure fluidized bed reactor in the presence of a substance selected from the group consisting of hydrogen and steam at temperatures substantially between 400.degree.and 600.degree. C. for producing low-temperature carbonization gas. The low-temperature carbonization gas is condensed in at least two stages for producing relatively higher boiling and relatively lower boiling oil fractions. The oil-bearing solids are peripherally mashed with the higher boiling oil fraction of the low-temperature carbonization gas, before introducing the oil-bearing solids into the high-pressure fluidized bed reactor. The oil-bearing solids mashed with the higher boiling oil fraction are returned to the high-pressure fluidized bed reactor.Type: GrantFiled: December 19, 1989Date of Patent: February 19, 1991Assignee: Siemens AktiengesellschaftInventors: Konrad Kunstle, Gerd Brunner, Jurgen Hoffmann, Till Dehrmann
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Patent number: 4874506Abstract: A process for catalytic two-stage hydrogenation and liquefaction of coal with selective extinction recycle of all heavy liquid fractions boiling above a distillation cut point of about 600.degree.-750.degree. F. to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal feed is slurried with a process-derived liquid solvent normally boiling above about 650.degree. F. and fed into a first stage catalytic reaction zone operated at conditions which promote controlled rate liquefaction of the coal, while simultaneously hydrogenating the hydrocarbon recycle oils. The first stage reactor is maintained at 710.degree.-800.degree. F. temperature, 1000-4000 psig hydrogen partial pressure, and 10-90 lb/hr per ft.sup.3 catalyst space velocity. Partially hydrogenated material withdrawn from the first stage reaction zone is passed directly to the second stage catalytic reaction zone maintained at 760.degree.-860.degree. F.Type: GrantFiled: October 16, 1987Date of Patent: October 17, 1989Assignee: HRI, Inc.Inventors: James B. MacArthur, Alfred G. Comolli, Joseph B. McLean
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Patent number: 4818374Abstract: A process for converting coal to an oil fraction, which comprises subjecting coal to a first hydrogenation reaction, deashing the reaction product of the first hydrogenation reaction and subjecting the deashed liquefied oil to a second hydrogenation reaction, wherein coal, a solvent and hydrogenation-treated heavy oil components are supplied for the first hydrogenation reaction; from the first hydrogenation reaction product, at least a part of the oil fraction is obtained; from the first hydrogenation reaction product, a substantial amount of preasphaltene components is removed simultaneously with or independently of the deashing operation, and the deashed liquefied oil containing heavy oil components and not greater than 20% by weight of preasphaltene components thereby obtained, is supplied for the second hydrogenation reaction; from the second hydrogenation reaction product, an oil fraction and heavy oil components are separated and the heavy oil components are recycled to the first hydrogenation reactionType: GrantFiled: November 8, 1985Date of Patent: April 4, 1989Assignees: Mitsubishi Chemical Industries Ltd., Kabushiki Kaisha Kobe Seiko Sho, Idemitsu Kosan Company Limited, Asia Oil Company Limited, Nippon Brown Coal Liquefaction Co., Ltd.Inventors: Nobuyoshi Hirokoh, Yoichi Kageyama, Yukio Nakako, Tetsuo Matsumura
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Patent number: 4741822Abstract: Procedure for hydrogenation of coal by means of liquid phase and fixed-bed catalyst hydrogenation whereby the head products of the high-temperature separator are led directly, and together with the entire high-pressure circuit gas, over a reactor with a rigidly installed catalyst; are separated from the exhaust products of this reactor by partial condensation of the cycle oil required for producing the coal paste and withdrawn from an intermediate separator; and are led again, together with the entire high-pressure circuit gas, over an additional reactor with a fixed-bed catalyst.Type: GrantFiled: July 29, 1986Date of Patent: May 3, 1988Assignee: Ruhrkohle AktiengesellschaftInventors: Eckard Wolowski, Rainer Loring, Frank Friedrich, Bernd Strobel
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Patent number: 4740289Abstract: A process for the hydrogenolysis of a coal liquid bottom containing benzene-insoluble components and having a boiling point of at least 420.degree. C., which comprises:(a) hydrogenating the coal liquid bottom at a temperature of not higher than 350.degree. C. in the presence of a catalyst comprising an alkali metal and/or an alkaline earth metal and a metal of Group VI A of the Periodic Table to reduce the content of the benzene-insoluble components in the fraction having a boiling point of at least 420.degree. C., to a level of not higher than 10% by weight, and then(b) subjecting the product to hydrogenolysis at a temperature of higher than 350.degree. C. and not higher than 450.degree. C. in the presence of a catalyst comprising a metal of Group VI A of the Periodic Table.Type: GrantFiled: April 20, 1987Date of Patent: April 26, 1988Assignees: Mitsubishi Chemical Industries Ltd., Kabushiki Kaisha Kobe Seiko Sho, Idemitsu Kosan Company Limited, Asia Oil Company, Nippon Brown Coal Liquefaction Co., Ltd.Inventors: Yoichi Kageyama, Tetsuo Masuyama
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Patent number: 4675102Abstract: The invention provides an improvement to a process for producing a diesel fuel from a medium heavy oil obtained from coal. The invention increases the amount of medium oil which can be used to produce diesel fuel while keeping the total yield of oil from the coal about the same. Thus, the fraction of the medium oil recovered is greater without altering the total yield of oil from the coal, and now amounts to about 80 to 85 percent of the total oil yield. Accordingly, the amount of light oil derived in this process becomes correspondingly smaller. Thus, the total oil yield is increased by about 4 to 6 percent compared with previously obtained results.Type: GrantFiled: May 30, 1985Date of Patent: June 23, 1987Assignee: Ruhrkohle AktiengesellschaftInventors: Eckard Wolowski, Klaus-Dieter Dohms
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Patent number: 4627913Abstract: A process for the solvent refining of coal to distillable, pentane soluble products using a dephenolated and denitrogenated recycle solvent and a recycled, pentane-insoluble, solvent-refined coal material, which process provides enhanced oil-make in the conversion of coal.Type: GrantFiled: January 9, 1985Date of Patent: December 9, 1986Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Edwin N. Givens, Frank K. Schweighardt
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Patent number: 4610777Abstract: A method for the liquefaction of coal under coal liquefaction conditions in the presence of manganese nodules in combination with an improved coal liquefaction solvent. Liquid yields are increased when the solvent, containing substantially only polycondensed aromatic systems or components that possess polargraphic reduction potentials equal to or greater than about -2.4 volts, is utilized in the reaction. During the reaction the polycondensed aromatic compounds, in the presence of manganese, are selectively and rapidly hydrogenated leading to increased liquefaction of coal.Type: GrantFiled: August 15, 1984Date of Patent: September 9, 1986Assignee: Mobil Oil CorporationInventor: Philip Varghese
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Patent number: 4609455Abstract: A coal liquefaction system is disclosed with a novel preasphaltene recycle from a supercritical extraction unit to the slurry mix tank wherein the recycle stream contains at least 90% preasphaltenes (benzene insoluble, pyridine soluble organics) with other residual materials such as unconverted coal and ash. This subject process results in the production of asphaltene materials which can be subjected to hydrotreating to acquire a substitute for No. 6 fuel oil. The preasphaltene-predominant recycle reduces the hydrogen consumption for a process where asphaltene material is being sought.Type: GrantFiled: February 21, 1985Date of Patent: September 2, 1986Assignee: International Coal Refining CompanyInventors: Robert F. Weimer, Robert N. Miller
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Patent number: 4605486Abstract: An improved process for liquefying solid carbonaceous materials wherein the solid carbonaceous material is slurried with a suitable solvent and then subjected to liquefaction at elevated temperature and pressure to produce a normally gaseous product, a normally liquid product and a normally solid product. The normally liquid product is further separated into a naphtha boiling range product, a solvent boiling range product and a vacuum gas-oil boiling range product. At least a portion of the solvent boiling-range product and the vacuum gas-oil boiling range product are then combined and passed to a hydrotreater where the mixture is hydrotreated at relatively severe hydrotreating conditions and the liquid product from the hydrotreater then passed to a catalytic cracker. In the catalytic cracker, the hydrotreater effluent is converted partially to a naphtha boiling range product and to a solvent boiling range product.Type: GrantFiled: April 26, 1985Date of Patent: August 12, 1986Assignee: Exxon Research and Engineering Co.Inventor: Daniel F. Ryan
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Patent number: 4602992Abstract: In accordance with the invention, during hydrogenation by means of sump phase hydrogenation followed by gas-phase hydrogenation, the high boiling fractions are separated from the lower boiling vapor fractions, after leaving the hot precipitation head, by partial condensation in an intermediate precipitator with the result that the gas-phase reactor has a better service life and optimum reaction conditions can be provided. The improved process results in an improved quality of solvent for the sump phase hydrogenation.Type: GrantFiled: September 20, 1985Date of Patent: July 29, 1986Assignee: Ruhrkohle AktiengesellschaftInventors: Josef Langhoff, Eckard Wolowski, Frank Mirtsch
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Patent number: 4601812Abstract: A oil shale retorting process in which oil shale particles are separated into fines and large particles. The large particles are preheated and combined with hot spent shale from a combustor and introduced into a retorting vessel. The fines are introduced into the disengaging section of the retorting vessel. Retort vapors are processed to produce an upgraded syncrude. The portion of the retort vessel where the oil shale and spent shale are introduced has a smaller diameter than the retorting section.Type: GrantFiled: January 7, 1985Date of Patent: July 22, 1986Assignee: Conoco Inc.Inventors: Ardis L. Anderson, James R. McConaghy, Jr.
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Patent number: 4596650Abstract: Sub-bituminous coal is directly liquefied in two stages by use of a liquefaction solvent containing insoluble material as well as 850.degree. F.+ material and 850.degree. F.- material derived from the second stage, and controlled temperature and conversion in the second stage. The process is in hydrogen balance.Type: GrantFiled: March 16, 1984Date of Patent: June 24, 1986Assignee: Lummus Crest, Inc.Inventors: Harvey D. Schindler, James M. Chen
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Patent number: 4595488Abstract: Moisture- and ash-free coking coal is micronized and admixed with a recycle oil, whereafter it is rapidly hydrogenated and one portion of the residue of the fractional distillation of the hydrogenation product is sent to hydrotreating, together with hydrogen. Conventional catalysts can be used both for the hydrogenation and the hydrotreating.A gaseous fraction, consisting of water vapor, hydrogen sulphide, ammonia and C1-C4 hydrocarbon is obtained along with gasoline.Gasoil can be obtained together with gasoline.Type: GrantFiled: June 7, 1984Date of Patent: June 17, 1986Assignee: ENI-Ente Nazionale IdrocarburiInventors: Giancarlo Pecci, Luigi Carvani, Domenico Valentini, Michele Zaninelli
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Patent number: 4589973Abstract: A continuous process for recovering oil from raw oil shale using a new integrated hydropyrolysis/thermal pyrolysis technique and involving the addition of pulverized coal which produces oil which is more characteristic of typical crude oil, as well as providing supplemental gas and coal char fuel, and has unusually low heat and energy requirements, which process comprises passing hot and crushed raw shale to a slurry mixer where it is mixed with hot recycle heavy oil, treating the resulting slurry with hydrogen under elevated temperature and pressure for a short period, discharging the resulting mixture to a product stripper wherein the product hydrocarbons and a portion of the recycle slurry oil is vaporized and passed to a separation column where the desired fractions are removed and heavy gas oil recovered for recycle, mixing a portion of the heavy gas oil recycle with pulverized coal particles to form a pumpable coal slurry, discharging spent shale and remaining slurry oil from the product stripper to a tType: GrantFiled: July 15, 1985Date of Patent: May 20, 1986Assignee: Breckinridge Minerals, Inc.Inventor: Carl S. Minden
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Patent number: 4587006Abstract: A continuous process for recovering shale oil from raw oil shale using a new integrated hydropyrolysis/thermal pyrolysis technique which produces high yields of improved quality liquid hydrocarbon products and has unusually low heat and energy requirements, which process comprises crushing and grinding raw oil shale, mixing the ore particles with hot recycle heavy oil to form a slurry, treating the slurry with hydrogen under elevated temperature and pressure for a short period, stripping out the desired liquid hydrocarbon products, passing the remaining slurry mixture to a thermal retort where under fluidized bed conditions it is subjected to increased temperatures by adding spent shale that has been burned in an air lift combustor at two different temperature level treatment zones, the upper zone being selected such that the temperature is sufficient to vaporize the remaining slurry oil, and the lower zone being selected such that the temperature is sufficient to retort spent shale and to thermally crack excType: GrantFiled: July 15, 1985Date of Patent: May 6, 1986Assignee: Breckinridge Minerals, Inc.Inventor: Carl S. Minden