With Subsequent Hydrocracking Patents (Class 208/68)
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Patent number: 6183627Abstract: Upgrading of a hydrocarbon feed containing sulfur, metals, and asphaltenes involves applying the feed to a distillation column for producing a substantially asphaltene-free, and metal-free distillate fraction and a non-distilled fraction containing sulfur, asphaltenes, and metals. At least some of the substantially asphaltene-free, and metal-free distillate fraction is converted to a hydrogen donor diluent. The non-distilled fraction is processed in a solvent deasphalting unit for producing a deasphalted oil stream and an asphaltene stream. After a combined stream is formed from the hydrogen donor diluent and the deasphalted oil stream, the combined stream is thermally cracked forming a thermally cracked stream that is applied to the distillation column.Type: GrantFiled: March 3, 1999Date of Patent: February 6, 2001Assignee: Ormat Industries Ltd.Inventors: J. Robert Friday, Philip B. Rettger, Randall S. Goldstein
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Patent number: 6172272Abstract: A high-yield process for converting lignin into reformulated, partially oxygenated gasoline compositions of high quality is provided. The process is a two-stage catalytic reaction process that produces a reformulated, partially oxygenated gasoline product with a controlled amount of aromatics. In the first stage of the process, a lignin feed material is subjected to a base-catalyzed depolymerization reaction, followed by a selective hydrocracking reaction which utilizes a superacid catalyst to produce a high oxygen-content depolymerized lignin product mainly composed of alkylated phenols, alkylated alkoxyphenols, and alkylbenzenes.Type: GrantFiled: August 18, 1999Date of Patent: January 9, 2001Assignee: The University of UtahInventors: Joseph S. Shabtai, Wlodzimierz W. Zmierczak, Esteban Chornet
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Patent number: 5925236Abstract: In a process and apparatus for visbreaking a heavy hydrocarbon feedstock in the liquid state, whereby the feedstock is brought to an appropriate temperature to cause cracking of at least part of the hydrocarbons present, and is then introduced into the bottom of a soaker (3) wherein it travels from bottom to top, and is then discharged from the top of said soaker (3) and directed to a fractionation unit, the improvement wherein a preferably inert gas is injected into the hydrocarbon feedstock inside the soaker (3), in the vicinity of the soaker side walls, at least at the bottom of the soaker (3) and the gas is injected upward along the side walls of the soaker (3) and flows from bottom to top along said walls co-currently with the hydrocarbon feedstock.Type: GrantFiled: December 4, 1996Date of Patent: July 20, 1999Assignee: Total Rafinage Distribution S.A.Inventors: Marc Fersing, Luc Gouzien, Elisabeth Mouchot, Geraud Bourley
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Patent number: 5481052Abstract: This invention relates to a process for cracking waste polymers in a fluidized bed reactor to produce vaporous products comprising primary products which can be further processed, eg in a steam cracker to produce olefins, characterized in that the vaporous products are treated to generate a primary product substantially free of a high molecular weight tail having molecular weights >700 prior to further processing. The removal of the high molecular weight tail minimizes fouling and prolongs the lifetime of the reactors used for further processing.Type: GrantFiled: April 8, 1993Date of Patent: January 2, 1996Assignee: BP Chemicals LimitedInventors: Stephen Hardman, Stephen A. Leng, David C. Wilson
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Patent number: 5389230Abstract: This invention relates to a catalytic process for converting a carbonaceous material to a liquid product. More specifically, this invention relates to a process for hydroconverting coal in a hydroconverting zone to liquid hydrocarbon products in the presence of a catalyst prepared in situ, with the catalyst being added to a mixture of coal and solvent as an oil soluble metal compound. An increased quantity of liquid product is achieved by incorporating a hydrocracking zone into the process.Type: GrantFiled: June 11, 1993Date of Patent: February 14, 1995Assignee: Exxon Research & Engineering Co.Inventor: Lavanga R. Veluswamy
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Patent number: 5180868Abstract: The present invention is a multi-stepped method of converting an oil which is produced by various biomass and coal conversion processes and contains primarily single and multiple ring hydroxyaromatic hydrocarbon compounds to highly aromatic gasoline. The single and multiple ring hydroxyaromatic hydrocarbon compounds in a raw oil material are first deoxygenated to produce a deoxygenated oil material containing single and multiple ring aromatic compounds. Then, water is removed from the deoxygenated oil material. The next step is distillation to remove the single ring aromatic compouns as gasoline. In the third step, the multiple ring aromatics remaining in the deoxygenated oil material are cracked in the presence of hydrogen to produce a cracked oil material containing single ring aromatic compounds. Finally, the cracked oil material is then distilled to remove the single ring aromatics as gasoline.Type: GrantFiled: October 9, 1990Date of Patent: January 19, 1993Assignee: Battelle Memorial InstituteInventors: Eddie G. Baker, Douglas C. Elliott
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Patent number: 5152883Abstract: Process for producing gasolines having improved RON and MON which consists in subjecting the LCO, HCO and CLO obtained by catalytic cracking of a heavy hydrocarbon feedstock, to a hydrogenation treatment and subjecting the obtained products to a new catalytic cracking and then recovering hydrocarbons boiling in the range of gasolines.Type: GrantFiled: March 22, 1991Date of Patent: October 6, 1992Assignee: Fina Research S.A.Inventors: Michel Melin, Jacques F. Grootjans
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Patent number: 5108580Abstract: In a two stage catalytic cracking process a heavy cycle gas oil fraction (HCGO) nominal boiling range 600.degree. F. to 1050.degree. F., API gravity of -10.degree. to +10.degree. and 65 to 95 vol % aromatics is recycled to extinction between an ebullated bed hydrocracking zone and fluidized catalytic cracking zone to yield a liquid fuel and lighter boiling range fraction as the light fraction from each zone.The catalyst in the fluidized catalytic cracking zone is maintained at a micro activity 68 to 72 while cracking a virgin gas oil to HCGO. HCGO is then mixed with vacuum residuum and hydrocracked in an ebullated bed reactor. The mid range fraction is recycled to the fluidized catalytic cracking zone. The 1000.degree. F..sup.+ fraction is blended with a fuel oil.Type: GrantFiled: March 8, 1989Date of Patent: April 28, 1992Assignee: Texaco Inc.Inventors: Govanon Nongbri, Gerald V. Nelson, Roy E. Pratt, Charles H. Schrader, William B. Livingston, Michael P. Bellinger, Scott M. Sayles
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Patent number: 5080777Abstract: For upgrading heavy slurry oil containing catalyst fines from a catalytic cracking operation, the viscosity of the slurry oil is lowered in a hydrovisbreaking process step. In a preferred embodiment an admixture of the fines containing slurry oil and a metal containing resid oil fraction, resulting from a crude distillation, is passed through the hydrovisbreaker. The hydrovisbreaker effluent is separated into higher and lower boiling fractions with the lower boiling fraction preferably passed through a cracking unit so as to covert the lower boiling fraction to lower molecular weight hydrocarbon products.Type: GrantFiled: April 30, 1990Date of Patent: January 14, 1992Assignee: Phillips Petroleum CompanyInventors: Paul A. Aegerter, Jr., Jerald A. Howell, Edward L. Sughrue, II, Kelly G. Knopp
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Patent number: 5061362Abstract: An improved process for hydrogenation of heavy oil is provided by the use of a mixed catalyst. In the process of the present invention, a mixture of a direct desulfurization catalyst and a spent FCC catalyst which is free of molybdenum is used as the mixed catalyst. In accordance with the process of the present invention, a middle distillate fraction having a boiling point falling within the range of 171.degree. to 343.degree. C. can be obtained in high yield.Type: GrantFiled: October 10, 1990Date of Patent: October 29, 1991Assignee: Research Association for Petroleum Alternatives DevelopmentInventors: Takashi Yamamoto, Toshio Itoh
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Patent number: 4990239Abstract: High octane gasoline and high quality distillate are co-produced by a hydrocracking light cycle oil from a catalytic cracking process under conditions of low to moderate hydrogen pressure and severity to produce a high octane, hydrocracked gasoline. The distillate fraction from the hydrocracker is separated to form a first fraction which boils immediately above the gasoline fraction and a second, higher boiling fraction which is withdrawn as product. The first distillate fraction is recycled, preferably to extinction, to the cracker to increase the paraffinic content of the higher boiling distillate product by removal of the hydroaromatic components in the recycled fraction. The recycled fraction may be mixed with fresh feed to the cracker or may be injected at a higher level in the cracking riser as a secondary feed injection. The paraffinic distillate product has a low sulfur content and a high cetane index and is useful as a road diesel fuel.Type: GrantFiled: December 13, 1989Date of Patent: February 5, 1991Assignee: Mobil Oil CorporationInventors: W. Rodman Derr, Jr., Peter J. Owens, Michael S. Sarli
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Patent number: 4985134Abstract: High octane gasoline and high quality distillate are co-produced by a hydrocracking process in which a catalytic cracking light cycle oil is hydrocracked under conditions of low to moderate hydrogen pressure and severity to produce a high octane, hydrocracked gasoline. The distillate fraction which boils immediately above the gasoline fraction is recycled to the hydrocracker to increase the paraffinic content of this fraction by partial saturation and cracking of the aromatics contained in it so as to form a paraffinic distillate of low sulfur and high cetane index which is useful as a road diesel fuel. A higher boiling distillate fraction of relatively lower aromaticity may also be produced for use as a low sulfur fuel oil. The recycled fraction may be cooled to provide quench for the hydrocracker.Type: GrantFiled: November 8, 1989Date of Patent: January 15, 1991Assignee: Mobil Oil CorporationInventors: W. Rodman Derr, Jr., Peter J. Owens, Michael S. Sarli
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Patent number: 4971680Abstract: A hydrocarbon conversion process is disclosed involving the hydrocracking of a catalytic cycle oil in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from about 25 to about 60 wt. % based on the weight of the support component wherein at least about 1 to about 80 wt. % of the sieve material is a gallosilicate, based on the total weight of the sieve component.Type: GrantFiled: December 20, 1988Date of Patent: November 20, 1990Assignee: Amoco CorporationInventors: Simon G. Kukes, Victor K. Shum, P. Donald Hopkins, L. Charles Gutberlet
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Patent number: 4968402Abstract: A one stage catalytic process for producing high octane gasoline from a highly aromatic hydrocarbon feedstock. The process comprises hydrocracking the feedstock with an NiW/MCM-22 zeolite catalyst. Fractionation of the hydrocracker effluent provides a high octane gasoline fraction.Type: GrantFiled: February 14, 1990Date of Patent: November 6, 1990Assignee: Mobil Oil Corp.Inventors: Garry W. Kirker, Stuart S. Shih
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Patent number: 4943366Abstract: A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock having a boiling point in the range between 300.degree. and 650.degree. F. is processed directly to high octane gasoline by hydrocracking over a catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y together with a hydrogenation-dehydrogenation component. The feedstock which is preferably a light cut light cycle oil has an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion levels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline.Type: GrantFiled: April 6, 1988Date of Patent: July 24, 1990Assignee: Mobil Oil CorporationInventors: Ronald H. Fischer, Rene B. LaPierre, Peter J. Owens, Philip Varghese
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Patent number: 4919789Abstract: A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock having a boiling point in the range between 300.degree. and 650.degree. F. is processed directly to high octane gasoline by hydrocracking over a catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y together with a hydrogenation-dehydrogenation component. The feedstock which is preferably a light cut light cycle oil has an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion levels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline.Type: GrantFiled: October 18, 1988Date of Patent: April 24, 1990Assignee: Mobil Oil Corp.Inventors: Ronald H. Fischer, Rene B. LaPierre, Peter J. Owens, Philip Varghese
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Patent number: 4906353Abstract: A dual-mode hydrocarbon conversion process is provided which comprises reforming a sulfur-, nitrogen- and/or olefin-containing hydrocarbon feedstock, e.g. an FCC gasoline, in a conversion unit operated under reforming conditions employing as catalyst a noble metal-containing crystalline silicate having a Constraint Index of not greater than about 2 and a framework SiO.sub.2 /Al.sub.2 O.sub.3 ratio of at least about 50 to provide a relatively high yield of high octane reformate and a relatively low yield of C.sub.3-4 hydrocarbons prior to or following hydrocracking the feedstock in the unit operated under hydrocracking conditions in the presence of the aforesaid catalyst to provide a relatively low yield of high octane hydrocrackate and a relatively high yield of C.sub.3-4 hydrocarbons. The latter can be separated from the liquid product and processed in a gas plant to provide LPG products.Type: GrantFiled: February 23, 1989Date of Patent: March 6, 1990Assignee: Mobil Oil Corp.Inventors: Lloyd L. Breckenridge, Catherine L. Markham
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Patent number: 4828677Abstract: A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock is processed directly to high octane gasoline by hydrocracking over a monofunctional acidic cracking catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y. The feedstock which is preferably a light cycle oil obtained from catalytic cracking with an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion levels to mazimize the production of monocyclic aromatics which provide the requiste octane value to the product gasoline.Type: GrantFiled: November 2, 1987Date of Patent: May 9, 1989Assignee: Mobil Oil CorporationInventors: Ronald H. Fischer, Rene B. LaPierre, Stuart S. Shih, Philip Varghese
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Patent number: 4820403Abstract: A hydrocarbon conversion process is disclosed involving the hydrocracking of a catalytic cycle oil in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 25 to 60 wt. % based on the weight of the support component with the balance being alumina.Type: GrantFiled: November 23, 1987Date of Patent: April 11, 1989Assignee: Amoco CorporationInventors: L. Charles Gutberlet, Jeffrey T. Miller
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Patent number: 4812224Abstract: A hydrocarbon conversion process is disclosed involving the hydrocracking of a catalytic cycle oil in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 10 to 40 wt. % based on the weight of the support component with the balance of the support component being alumina.Type: GrantFiled: November 23, 1987Date of Patent: March 14, 1989Assignee: Amoco CorporationInventor: Jeffrey T. Miller
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Patent number: 4789457Abstract: A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock is processed directly to high octane gasoline by hydrocracking over a catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y together with a hydrogenation-dehydrogenation component. The feedstock which is preferably a light cycle oil has an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion leavels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline. The unconverted products from the hydrocracker are recyclied to the catalytic cracking unit to obtain further improvements in gasoline yield and octane.Type: GrantFiled: June 22, 1987Date of Patent: December 6, 1988Assignee: Mobil Oil CorporationInventors: Ronald H. Fischer, Yun-Yang Huang, Rene B. LaPierre, Philip Varghese
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Patent number: 4750985Abstract: A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process which may be integrated with a deasphalting process.Type: GrantFiled: December 6, 1985Date of Patent: June 14, 1988Assignee: Exxon Research and Engineering CompanyInventors: Clyde L. Aldridge, Roby Bearden, Jr., Clarence M. Eidt, Jr.
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Patent number: 4738766Abstract: A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock having a boiling point in the range between 300.degree. and 650.degree. F. is processed directly to high octane gasoline by hydrocracking over a catalyst, preferably comprising a large pore size, crystalline alumino-silicate zeolite hydrocracking catalyst such as zeolite Y together with a hydrogenation-dehydrogenation component. The feedstock which is preferably a light cut light cycle oil has an aromatic content of at least 50, usually at least 60 percent and an API gravity not more than 25. The hydrocracking typically operates at 600-1000 psig at moderate to high conversion levels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline.Type: GrantFiled: December 10, 1986Date of Patent: April 19, 1988Assignee: Mobil Oil CorporationInventors: Ronald H. Fischer, Rene B. LaPierre, Peter J. Owens, Philip Varghese
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Patent number: 4721557Abstract: A process for the conversion of residual asphaltene-containing hydrocarbonaceous charge stock to selectively produce large quantities of high quality middle distillate while minimizing hydrogen consumption.Type: GrantFiled: October 8, 1986Date of Patent: January 26, 1988Assignee: UOP Inc.Inventor: Darrell W. Staggs
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Patent number: 4715947Abstract: A process for the conversion of residual asphaltene-containing hydrocarbonaceous charge stock to selectively produce large quantities of high quality middle distillate while minimizing hydrogen consumption.Type: GrantFiled: November 24, 1986Date of Patent: December 29, 1987Assignee: UOP Inc.Inventor: Darrell W. Staggs
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Patent number: 4713221Abstract: In a crude oil refining apparatus, heavy cycle oil from the catalytic cracking unit employed in the crude oil refining apparatus is recycled to a hydrofining process. Such recycling improves the value of the product mix obtained from the crude oil refining apparatus with respect to an apparatus in which the heavy cycle oil withdrawn from the catalytic cracking units is recycled to the catalytic cracking units.Type: GrantFiled: September 16, 1985Date of Patent: December 15, 1987Assignee: Phillips Petroleum CompanyInventors: Dean P. Montgomery, James W. Gall, Ed D. Davis
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Patent number: 4676887Abstract: A moderate pressure hydrocracking process is disclosed in which substantially dealkylated heavy distillate feedstocks are processed directly to high octane gasoline over a catalyst, preferably comprising a crystalline silicate zeolite hydrocracking component having a Constraint Index less than 2. The bottoms fraction produced from the contacting may be passed to an FCC unit for further processing. In another embodiment, the substantially dealkylated heavy distillate feedstock may be fractionated into a lighter boiling stream and a heavier boiling stream for better ease of processing.Type: GrantFiled: February 3, 1986Date of Patent: June 30, 1987Assignee: Mobil Oil CorporationInventors: Ronald H. Fischer, Yun-Yang Huang, Rene B. LaPierre, Philip Varghese
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Patent number: 4585545Abstract: An aromatic gasoline component is prepared in a multi-step petroleum refining process starting with a heavy carbometallic petroleum fraction which is catalytically cracked to yield a light catalytic cycle oil which, in turn, is mildly hydrogenated to produce a partially saturated bicyclic hydrocarbon fraction which itself is catalytically cracked to yield a monoaromatic hydrocarbon fraction from which is recovered a gasoline product. The bicyclic hydrocarbons are converted to monoaromatics by selective partial saturation and ring scission.Type: GrantFiled: December 7, 1984Date of Patent: April 29, 1986Assignee: Ashland Oil, Inc.Inventors: Robert E. Yancey, Jr., William P. Hettinger, Jr.
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Patent number: 4579646Abstract: This invention relates to a process for hydroconverting a hydrocarbon chargestock having the steps of: heating the chargestock to produce a minor amount of coke; contacting the coke within the chargestock with a minor effective amount of an oil-soluble metal compound, the metal being selected from the group consisting of Groups IV-B, V-B, VI-B, VII-B, and VIII of the Periodic Table of Elements, and mixtures thereof; contacting the metal compound and the coke within the chargestock with a hydrogen-containing gas under conditions to produce a solid catalyst within the chargestock capable of promoting hydroconversion of at least a portion of the chargestock; contacting the chargestock containing the catalyst with hydrogen under hydroconversion conditions; and recovering a hydroconverted substantially-hydrocarbon product.Type: GrantFiled: July 13, 1984Date of Patent: April 1, 1986Assignee: Atlantic Richfield Co.Inventors: Martin P. Grosboll, Paul H. Dittmar
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Patent number: 4569752Abstract: A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal, and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process in which a catalyst precursor is added to the feed of the hydroconversion zone as a catalyst precursor concentrate prepared from a virgin hydrocarbonaceous oil and a thermally decomposable or oil dispersible metal compound.Type: GrantFiled: November 30, 1984Date of Patent: February 11, 1986Assignee: Exxon Research and Engineering Co.Inventors: Clyde L. Aldridge, Roby Bearden, Jr.
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Patent number: 4569751Abstract: A carbonaceous feed, such as a heavy hydrocarbonaceous oil or coal and mixtures thereof, is upgraded by a combination coking and catalytic slurry hydroconversion process.Type: GrantFiled: November 30, 1984Date of Patent: February 11, 1986Assignee: Exxon Research and Engineering Co.Inventors: Clarence M. Eidt, Jr., Clyde L. Aldridge, Roby Bearden, Jr.
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Patent number: 4565620Abstract: In a crude oil refining process, heavy cycle oil from the catalytic cracking unit employed in the crude oil refining process is recycled to a hydrofining process. Such recycling improves the value of the product mix obtained from the crude oil refining process with respect to a process in which the heavy cycle oil withdrawn from the catalytic cracking units is recycled to the catalytic cracking units.Type: GrantFiled: May 25, 1984Date of Patent: January 21, 1986Assignee: Phillips Petroleum CompanyInventors: Dean P. Montgomery, James W. Gall, Ed D. Davis
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Patent number: 4560467Abstract: A hydrocarbon containing feed stream, e.g., a heavy oil or residuum, is contacted under suitable reaction conditions with a carbon monoxide containing gas, so as to produce a hydrocarbon stream having a reduced level of metal impurities, especially nickel and vanadium compounds, and an increased API.sup.60 gravity, essentially in the absence of a catalyst or extractant.Type: GrantFiled: April 12, 1985Date of Patent: December 24, 1985Assignee: Phillips Petroleum CompanyInventor: Paul R. Stapp
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Patent number: 4530753Abstract: Heavy hydrocarbon oils are converted into light hydrocarbon oils by two-stage process wherein, in the first stage, a heavy hydrocarbon oil is subjected to thermal cracking conditions and, in the second stage, the product of the thermal cracking is subjected to a hydrotreatment in the presence of a specific catalyst including, as a carrier, a clay mineral consisting mainly of magnesium silicate having a double-chain structure such as sepiolite.Type: GrantFiled: July 16, 1984Date of Patent: July 23, 1985Assignee: Chiyoda Chemical Engineering & Construction Co., Ltd.Inventors: Yoshimi Shiroto, Shinichi Nakata, Hideki Hashimoto
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Patent number: 4530754Abstract: Heavy hydrocarbon oils are converted into light hydrocarbon oils by two-stage process wherein, in the first stage, a heavy hydrocarbon oil is subjected to thermal cracking conditions and, in the second stage, the product of the thermal cracking is subjected to a hydrotreatment in the presence of a specific catalyst having a large pore volume in pores with diameters of 200-400 .ANG.. The hydrotreatment is carried out so that the product oil may have a toluene insoluble content of 0.5 wt % or less.Type: GrantFiled: July 16, 1984Date of Patent: July 23, 1985Assignee: Chiyoda Chemical Engineering & Construction Co., Ltd.Inventors: Yoshimi Shiroto, Shinichi Nakata, Hideki Hashimoto
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Patent number: 4462895Abstract: A heavy hydrocarbon oil comprising constituents boiling above 1050.degree. F. is upgraded by a combination visbreaking or hydrovisbreaking and hydrorefining process in which at least a portion of the hydrorefined bottoms fraction is recycled to the visbreaking zone. The hydrorefining zone is operated at conditions to convert at least a portion of the 1050.degree. F..sup.+ constituents to lower boiling hydrocarbons.Type: GrantFiled: February 25, 1983Date of Patent: July 31, 1984Assignee: Exxon Research & Engineering Co.Inventors: Omer Biceroglu, Bruce M. Sankey
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Patent number: 4426276Abstract: An integrated combination of fluid catalytic cracking and hydrocracking select fractions of crude oil and FCC cycle oils to conserve hydrogen process requirements in the production of gasoline is discussed. Liquid products of hydrocracking are separated into low boiling components and a high boiling fraction is recycled to the FCC operation. Select fractions obtained from hydrocracking, FCC and crude oil distillation are upgraded by reforming and alkylation.Type: GrantFiled: April 20, 1983Date of Patent: January 17, 1984Inventors: Robert R. Dean, Jean-Louis Mauleon
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Patent number: 4405441Abstract: Distillates are prepared from asphaltenes-rich feeds by a process comprising subjecting the feed to catalytic hydroconversion, and subjecting the distillation residue of the hydroconverted product to a combination of solvent deasphalting and thermal cracking.Type: GrantFiled: September 30, 1982Date of Patent: September 20, 1983Assignee: Shell Oil CompanyInventors: Robert H. Van Dongen, John R. Newsome
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Patent number: 4400264Abstract: Distillates are prepared from asphaltenes-rich feeds by a process comprising subjecting the feed to thermal cracking, and subjecting the distillation residue of the cracked product to a combination of solvent deasphalting and catalytic hydroconversion.Type: GrantFiled: September 30, 1982Date of Patent: August 23, 1983Assignee: Shell Oil CompanyInventors: Pieter B. Kwant, John R. Newsome
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Patent number: 4390413Abstract: A petroleum distillate feed is upgraded and an olefinic product is produced by contacting the feed with ZSM-5-type zeolite at (1) a temperature in the 500.degree. F.-800.degree. F. range; (2) a pressure below about 13 atmospheres gauge; and (3) an LHSV in the 0.1-15 V/V/Hr range.Type: GrantFiled: October 6, 1980Date of Patent: June 28, 1983Assignee: Chevron Research CompanyInventors: Dennis J. O'Rear, Jerome F. Mayer
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Patent number: 4366047Abstract: A process for upgrading a heavy hydrocarbonaceous oil is provided in which the oil is hydrorefined, heat-treated and hydrocracked to increase the selectivity of the hydrocracked product to components boiling in the range of 350.degree. to 675.degree. F.Type: GrantFiled: June 2, 1981Date of Patent: December 28, 1982Assignee: Exxon Research and Engineering Co.Inventors: William E. Winter, Bong H. Chang
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Patent number: 4354922Abstract: This invention provides an integrated process for upgrading a combination of crude petroleum residua, refractory bottoms from catalytic cracking operations, and coal to gasoline and middle distillate products.The process involves dense-gas solvent extraction under supercritical conditions, cracking, and hydroconversion stages.Type: GrantFiled: March 31, 1981Date of Patent: October 19, 1982Assignee: Mobil Oil CorporationInventors: Francis J. Derbyshire, Philip Varghese, Darrell D. Whitehurst
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Patent number: 4332670Abstract: The fractionation and stripping equipment of a middle distillate catalytic dewaxing unit may be eliminated by integrating the catalytic dewaxing unit with a catalytic cracking unit. The light cycle oil sidestream from the cat cracker fractionator, bypasses the sidestream stripper and serves as the feed to the catalytic dewaxing unit. The dewaxed product is separated into a gasoline fraction which is recycled for fractionation in the cat cracker fractionator and a fuel oil fraction which is recycled to the cat cracker sidestream stripper for removal of light materials to produce a low pour fuel oil meeting product specifications.Type: GrantFiled: January 14, 1981Date of Patent: June 1, 1982Assignee: Mobil Oil CorporationInventor: Michael J. Antal
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Patent number: 4251348Abstract: A petroleum distillate feed is upgraded and a substantial C.sub.3 -C.sub.4 olefin product fraction produced by contacting the feed with ZSM-5 type zeolite at (1) a temperature in the 500.degree.-800.degree. F. range, (2) a pressure below about 13 atmospheres gauge, and (3) an LHSV in the 0.1-15 V/V/Hr range, and fractionating the effluent product stream.Type: GrantFiled: December 26, 1979Date of Patent: February 17, 1981Assignee: Chevron Research CompanyInventors: Dennis J. O'Rear, Jerome F. Mayer
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Patent number: 4207167Abstract: A used hydrocarbon cracking catalyst having coke laydown thereon is regenerated under conditions to produce a gas rich in carbon monoxide which, together with steam, is subjected to a shift reaction to produce carbon dioxide and hydrogen, and oil cracked with said catalyst produces vapors which are fractionated to yield gases, cracked gasoline, a light-cycle oil, a heavy-cycle oil and bottoms, at least one of the light and heavy cycle oils is hydrocracked with the hydrogen earlier produced.Type: GrantFiled: March 21, 1978Date of Patent: June 10, 1980Assignee: Phillips Petroleum CompanyInventor: Ralph W. Bradshaw
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Patent number: 4140621Abstract: A saturated hydrocarbon charge containing both butane and isobutane is subjected to selective hydrogenolysis in the presence of a catalyst comprising a specific carrier and 0.1 - 10 % b.w. of rhodium. Butane is thus selectively converted to ethane and propane, while isobutane is preserved or formed and can be recovered from the reaction product.Type: GrantFiled: September 20, 1977Date of Patent: February 20, 1979Assignee: Institut Francais du PetroleInventors: Jean-Pierre Franck, Jean-Francois Le Page, Germain Martino, Jean Miquel
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Patent number: 4022681Abstract: A light gas oil, consisting predominantly of alkylated naphthalenes plus minor amounts of thiophene, quinoline, indan, and related naphthalene type carbonaceous compounds, derived from the liquid by-product from olefin production by pyrolysis in steam of a hydrocarbon fraction, is converted to mononuclear aromatic hydrocarbons by a two stage process in which said naphthalene type carbonaceous compounds are first hydrogenated at tetralinizing conditions saturating only one of the two aromatic rings of the feedstock. Said first stage hydrogenation also hydrodesulfurizes and hydrodecontaminates said feedstock. The tetralanized desulfurized normally liquid effluent from the first stage hydrogenation is hydrocracked in the second stage, said hydrocracking being in the presence of a catalyst featuring a stabilizing metal component on an acid-modified mordenite having a silica to alumina unit mol ratio within the range from 15 to 70 as a result of acid leaching of mordenite.Type: GrantFiled: December 24, 1975Date of Patent: May 10, 1977Assignee: Atlantic Richfield CompanyInventors: Ming Nan Sheng, Walter Anthony Mameniskis, Patrick Walter Ryan
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Patent number: 4017379Abstract: This invention relates to a process for effectively and completely converting into a useful hydrocarbon oil comprising naphtha, kerosene and gas oil with high cracking rate, the tar-sand bitumen and the vacuum residues from various petroleum or origins which are difficult to treat in comparison with the ordinary crude oil and contain large amount of asphaltenes and resins according to the combined process of the thermal cracking and hydrocracking.The present invention is useful to manufacture the pollution-free product oil from the tar-sand bitumen and the vacuum residues from the various petroleum origins with high desulfurization percentage of more than 90%. The product oil can be used as the superior fuel oil having less sulfur and metal contents and also as the starting material suitable for the secondary processing.Type: GrantFiled: May 7, 1975Date of Patent: April 12, 1977Assignee: Showa Oil Company, Ltd.Inventors: Tetsuya Iida, Hideo Saori, Masao Inoguchi, Hiroo Tominaga