Recycle Of Bottoms (resid) Patents (Class 208/417)
  • Patent number: 11370978
    Abstract: 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: Grant
    Filed: September 22, 2020
    Date of Patent: June 28, 2022
    Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Yuming Zhang, Jinsen Gao, Xingying Lan, Chengxiu Wang, Xiaogang Shi
  • Patent number: 8518334
    Abstract: 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: Grant
    Filed: March 31, 2010
    Date of Patent: August 27, 2013
    Assignee: UOP LLC
    Inventor: Gavin P. Towler
  • Patent number: 8287723
    Abstract: 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: Grant
    Filed: January 26, 2011
    Date of Patent: October 16, 2012
    Assignee: Phillips 66 Company
    Inventors: Andreas Jess, Dominic Kaufmann, Daren E. Daugaard
  • Patent number: 8206577
    Abstract: 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: Grant
    Filed: April 10, 2009
    Date of Patent: June 26, 2012
    Inventors: Alexander E. Kuperman, Jinyi Han
  • Patent number: 8123934
    Abstract: 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: Grant
    Filed: June 18, 2008
    Date of Patent: February 28, 2012
    Assignee: Chevron U.S.A., Inc.
    Inventors: Alexander E. Kuperman, Jinyi Han
  • Patent number: 8063258
    Abstract: 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: Grant
    Filed: November 2, 2010
    Date of Patent: November 22, 2011
    Assignee: Kior Inc.
    Inventors: Robert Bartek, Michael Brady, Dennis Stamires
  • Patent number: 7744827
    Abstract: 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: Grant
    Filed: February 13, 2004
    Date of Patent: June 29, 2010
    Assignee: United Technologies Corporation
    Inventors: Thomas Vanderspurt, Harry Cordatos
  • Publication number: 20080290000
    Abstract: 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: Application
    Filed: May 22, 2007
    Publication date: November 27, 2008
    Inventor: Gavin P. Towler
  • Patent number: 6936159
    Abstract: 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: Grant
    Filed: November 23, 2000
    Date of Patent: August 30, 2005
    Assignee: Add Astra Environment Technologies Pty Ltd
    Inventor: Percy Evan Kean
  • Patent number: 6511937
    Abstract: 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: Grant
    Filed: October 3, 2000
    Date of Patent: January 28, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Roby Bearden, Jr., Zhiguo Hou, Martin Leo Gorbaty, David Thomas Ferrughelli, Ronald Damian Myers
  • Patent number: 5783065
    Abstract: 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: Grant
    Filed: September 25, 1995
    Date of Patent: July 21, 1998
    Assignee: University of Utah Research Foundation
    Inventors: Wendell H. Wiser, Alex G. Oblad, Joseph S. Shabtai
  • Patent number: 5308477
    Abstract: 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: Grant
    Filed: September 3, 1992
    Date of Patent: May 3, 1994
    Assignee: University of Utah
    Inventors: Wendell H. Wiser, Alex G. Oblad, Joseph S. Shabtai
  • Patent number: 5122260
    Abstract: 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: Grant
    Filed: January 9, 1989
    Date of Patent: June 16, 1992
    Assignee: ABB Lummus Crest Inc.
    Inventors: Avinash Gupta, Marvin I. Greene
  • Patent number: 5120429
    Abstract: 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: Grant
    Filed: July 10, 1987
    Date of Patent: June 9, 1992
    Assignee: Lummus Crest Inc.
    Inventors: Avinash Gupta, Marvin I. Greene
  • Patent number: 5096569
    Abstract: 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: Grant
    Filed: January 15, 1991
    Date of Patent: March 17, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Peter S. Maa, Russell R. Chianelli
  • Patent number: 5071540
    Abstract: 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: Grant
    Filed: December 21, 1989
    Date of Patent: December 10, 1991
    Assignee: Exxon Research & Engineering Company
    Inventors: Claude C. Culross, Steve D. Reynolds
  • Patent number: 5045180
    Abstract: 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: Grant
    Filed: April 16, 1990
    Date of Patent: September 3, 1991
    Assignee: HRI, Inc.
    Inventor: Alfred G. Comolli
  • Patent number: 4994174
    Abstract: 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: Grant
    Filed: December 19, 1989
    Date of Patent: February 19, 1991
    Assignee: Siemens Aktiengesellschaft
    Inventors: Konrad Kunstle, Gerd Brunner, Jurgen Hoffmann, Till Dehrmann
  • Patent number: 4874506
    Abstract: 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: Grant
    Filed: October 16, 1987
    Date of Patent: October 17, 1989
    Assignee: HRI, Inc.
    Inventors: James B. MacArthur, Alfred G. Comolli, Joseph B. McLean
  • Patent number: 4818374
    Abstract: 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 reaction
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: April 4, 1989
    Assignees: 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
  • Patent number: 4741822
    Abstract: 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: Grant
    Filed: July 29, 1986
    Date of Patent: May 3, 1988
    Assignee: Ruhrkohle Aktiengesellschaft
    Inventors: Eckard Wolowski, Rainer Loring, Frank Friedrich, Bernd Strobel
  • Patent number: 4740289
    Abstract: 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: Grant
    Filed: April 20, 1987
    Date of Patent: April 26, 1988
    Assignees: 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
  • Patent number: 4675102
    Abstract: 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: Grant
    Filed: May 30, 1985
    Date of Patent: June 23, 1987
    Assignee: Ruhrkohle Aktiengesellschaft
    Inventors: Eckard Wolowski, Klaus-Dieter Dohms
  • Patent number: 4627913
    Abstract: 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: Grant
    Filed: January 9, 1985
    Date of Patent: December 9, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Diwakar Garg, Edwin N. Givens, Frank K. Schweighardt
  • Patent number: 4610777
    Abstract: 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: Grant
    Filed: August 15, 1984
    Date of Patent: September 9, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Philip Varghese
  • Patent number: 4609455
    Abstract: 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: Grant
    Filed: February 21, 1985
    Date of Patent: September 2, 1986
    Assignee: International Coal Refining Company
    Inventors: Robert F. Weimer, Robert N. Miller
  • Patent number: 4605486
    Abstract: 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: Grant
    Filed: April 26, 1985
    Date of Patent: August 12, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventor: Daniel F. Ryan
  • Patent number: 4602992
    Abstract: 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: Grant
    Filed: September 20, 1985
    Date of Patent: July 29, 1986
    Assignee: Ruhrkohle Aktiengesellschaft
    Inventors: Josef Langhoff, Eckard Wolowski, Frank Mirtsch
  • Patent number: 4601812
    Abstract: 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: Grant
    Filed: January 7, 1985
    Date of Patent: July 22, 1986
    Assignee: Conoco Inc.
    Inventors: Ardis L. Anderson, James R. McConaghy, Jr.
  • Patent number: 4596650
    Abstract: 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: Grant
    Filed: March 16, 1984
    Date of Patent: June 24, 1986
    Assignee: Lummus Crest, Inc.
    Inventors: Harvey D. Schindler, James M. Chen
  • Patent number: 4595488
    Abstract: 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: Grant
    Filed: June 7, 1984
    Date of Patent: June 17, 1986
    Assignee: ENI-Ente Nazionale Idrocarburi
    Inventors: Giancarlo Pecci, Luigi Carvani, Domenico Valentini, Michele Zaninelli
  • Patent number: 4589973
    Abstract: 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 t
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: May 20, 1986
    Assignee: Breckinridge Minerals, Inc.
    Inventor: Carl S. Minden
  • Patent number: 4587006
    Abstract: 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 exc
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: May 6, 1986
    Assignee: Breckinridge Minerals, Inc.
    Inventor: Carl S. Minden