With Metal Oxide Or Elemental Carbon, E.g., Supported, Etc. Patents (Class 585/744)
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Patent number: 8323478Abstract: A process, comprising: a. taking a sample from a continuous alkylation reactor process; b. measuring a content of a halide in the sample; and c. within 45 minutes from the taking a sample, adjusting a flow of a halide containing additive comprising the halide to control a ratio of a yield of an alkylate gasoline and a yield of a middle distillate. Also a process, comprising: a. taking a sample from an effluent of an alkylation reactor in an alkylation reactor process; b. measuring a content of a halide in the sample; and c. in response to the measured content of the halide, adjusting a flow of a halide containing additive to a predetermined range that has been selected to obtain a ratio of a yield of an alkylate gasoline and a yield of a middle distillate from 0.31 to 4.0 in a product from the alkylation reactor.Type: GrantFiled: July 21, 2011Date of Patent: December 4, 2012Assignee: Chevron U.S.A. Inc.Inventors: Sven Ivar Hommeltoft, Howard S. Lacheen
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Patent number: 8142725Abstract: An apparatus comprising: a) an alkylation reactor holding an ionic liquid catalyst and a reactant mixture, b) a means for measuring levels of a halide in an effluent from the alkylation reactor, and c) a control system that receives a signal in response to the measuring and communicates changes in an operating condition that influences the yield of products from the reactant mixture. The control system is responsive to deviations outside a predetermined range of halide level that has been selected to obtain a ratio of a yield of an alkylate gasoline and a yield of a middle distillate from 0.31 to 4.0 in the product from the alkylation reactor.Type: GrantFiled: July 8, 2011Date of Patent: March 27, 2012Assignee: Chevron U.S.A. Inc.Inventors: Sven Ivar Hommeltoft, Howard S. Lacheen
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Patent number: 8070939Abstract: A process comprising: a) taking a sample from a continuous reactor process, b)measuring a content of a halide in the sample, and c) in response to the measured content of the halide, adjusting a flow of a halide containing additive comprising the halide to control the process. Also, an apparatus comprising: a) a reactor holding an ionic liquid catalyst and a reactant mixture, b) a means for measuring levels of a halide in an effluent from the reactor, and c) a control system that receives a signal in response to the measuring and communicates changes in an operating condition that influences the yield of a product in the reactant mixture.Type: GrantFiled: September 18, 2008Date of Patent: December 6, 2011Assignee: Chevron U.S.A. Inc.Inventors: Sven Ivar Hommeltoft, Howard S. Lacheen
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Patent number: 7601881Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a phosphorus component, and at least one platinum-group metal component which is preferably platinum. The catalyst has a structure other than a heteropoly anion structure.Type: GrantFiled: January 30, 2008Date of Patent: October 13, 2009Assignee: UOP LLCInventors: Ralph D. Gillespie, Feng Xu
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Patent number: 7384538Abstract: A process for the hydroisomerization of a waxy feed having a major portion boiling above 650° F. to produce a lubricating base oil having a lower pour point, said process comprising (a) passing the waxy feed along with hydrogen gas through a hydroisomerization zone maintained at a hydrogen partial pressure of between about 100 psia and about 400 psia, said hydroisomerization zone comprising a catalyst bed containing at least two active wax hydroisomerization catalysts, said catalysts comprising at least (i) a first catalyst comprising an active hydrogenation component and a 1-D, 10-ring molecular sieve having a maximum crystallographic free diameter of the channels equal to 6.2 ? units or greater and (ii) a second catalyst comprising an active hydrogenation component and a 1-D, 10-ring molecular sieve having a maximum crystallographic free diameter of the channels equal to 5.Type: GrantFiled: November 2, 2004Date of Patent: June 10, 2008Assignee: Chevron U.S.A. Inc.Inventor: Stephen J. Miller
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Publication number: 20040249230Abstract: A process for the isomerization of a feedstream comprising C5-C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5-C6 hydrocarbons into an isomerization zone and contacting said hydrogen and feedstream with an isomerization catalyst at isomerization conditions to increase the branching of the feedstream hydrocarbons and produce an isomerization effluent stream comprising at least normal pentane, normal hexane, methylbutane, dimethylbutane, and methylpentane has been discovered. The catalyst used is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB (IUPAC 4) of the Periodic Table, a first component selected from the group consisting of at least one lanthanide-series element, mixtures thereof, and yttrium, and a second component selected from the group of platinum-group metals and mixtures thereof.Type: ApplicationFiled: March 19, 2004Publication date: December 9, 2004Inventors: Ralph D. Gillespie, Michelle J. Cohn, Lynn H. Rice
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Patent number: 6573417Abstract: The fractional distillation performed as part of the isomerization of C5-C6 paraffins is heat integrated. A portion of a sidedraw recycle stream is employed to cool the feed to a deisohexanizer column and then returned to a lower portion of the column. This reduces the reflux demand of the column and the operating cost of the process.Type: GrantFiled: November 5, 2001Date of Patent: June 3, 2003Assignee: UOP LLCInventor: Lynn H. Rice
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Patent number: 6320089Abstract: An improved catalyst is disclosed for the conversion of hydrocarbons. The catalyst comprises an alumina support, a Friedel-Crafts metal halide, and a platinum-group metal component, wherein the support comprises primarily eta alumina and a small amount of gamma alumina and has a defined pore-size and acidity characteristics. An isomerization process also is disclosed which is particularly effective for the conversion of C4-C7 alkanes.Type: GrantFiled: January 9, 2001Date of Patent: November 20, 2001Assignee: UOP LLCInventor: Ralph D. Gillespie
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Patent number: 6118036Abstract: A process to isomerize at least one normal or mono-methyl-branched alkane to form at least one multi-methyl-branched alkane has been developed. At least one normal or mono-methyl-branched is introduced to a reaction zone to form at least one multi-methyl-branched alkane. The reaction zone is located between a first and a second adsorption zone with the adsorption zones containing an adsorbent effective to selectively adsorb normal and mono-methyl-branched alkanes relative to multi-methyl-branched alkanes. A desorbent is introduced to the first adsorption zone and an effluent containing at least one multi-methyl-branched alkane is withdrawn from the second adsorption zone. After a period of time, the introduction of the desorbent is redirected to the second adsorption zone and concurrently the withdrawal of the effluent is moved to the first adsorption zone.Type: GrantFiled: September 24, 1998Date of Patent: September 12, 2000Assignee: UOP LLCInventor: Herman A. Zinnen
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Patent number: 5770783Abstract: A process to isomerize at least one normal or mono-methyl-branched alkane containing from about 6 to about 8 carbon atoms to form at least one multi-methyl-branched alkane has been developed. The normal or mono-methyl-branched alkane is introduced to a reaction and adsorption zone operating under conditions effective to isomerize the normal or mono-methyl-branched alkane and containing a catalyst effective to isomerize the normal or mono-methyl-branched alkane and an adsorbent effective to selectively adsorb normal and mono-methyl-branched alkanes relative to multi-methyl-branched alkanes. Hydrogen and a desorbent comprising at least one alkane having from about 4 to about 8 carbon atoms is introduced to a first portion of the reaction and adsorption zone and an effluent containing at least one multi-methyl-branched alkane is withdrawn from a second portion of the reaction and adsorption zone.Type: GrantFiled: February 3, 1997Date of Patent: June 23, 1998Assignee: UOP LLCInventors: Herman A. Zinnen, Charles P. McGonegal
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Patent number: 5763730Abstract: A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected.Type: GrantFiled: June 18, 1996Date of Patent: June 9, 1998Assignee: UOPInventors: Hemant W. Dandekar, Gregory A. Funk, Ralph D. Gillespie, Herman A. Zinnen, Charles P. McGonegal, Masami Kojima, Simon H. Hobbs
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Patent number: 5744683Abstract: A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected.Type: GrantFiled: June 18, 1996Date of Patent: April 28, 1998Assignee: UOPInventors: Hemant W. Dandekar, Gregory A. Funk, Simon H. Hobbs, Masami Kojima, Ralph D. Gillespie, Herman A. Zinnen, Charles P. McGonegal
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Patent number: 5744684Abstract: A process for isomerizing a mixture of alkanes containing pentanes and at least one alkane having from 6 to about 8 carbon atoms and no more than one methyl branch has been developed.Type: GrantFiled: June 18, 1996Date of Patent: April 28, 1998Assignee: UOPInventors: Herman A. Zinnen, Charles P. McGonegal, Hemant W. Dandekar, Gregory A. Funk, Ralph D. Gillespie
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Patent number: 5672264Abstract: A class of highly stable supergallery pillared clay compositions that have a basal spacing up to 55 .ANG. corresponding a gallery height of 35 .ANG. for samples dried at room temperature and a basal spacing up to 45 .ANG. corresponding a gallery height of 255 .ANG. for samples steamed at 800.degree. C. for 17 hours. Said compositions are prepared by special procedures including pillaring reaction in presence of poly (vinyl alcohol) as a pillaring precursor, an aging process at pH of around 4 to 9, and a calcinating or steaming treatment at high temperature. The new compositions exhibit catalytic properties and adsorption properties superior to prior art pillared clays. Said compositions are useful as catalysts for carbonium-ion reaction, and as adsorbents and catalyst carriers. They are especially suitable for preparing microspheric cracking catalysts for heavy oil or residual feedstock.Type: GrantFiled: July 1, 1996Date of Patent: September 30, 1997Assignee: Board of Trustees operating Michigan State UniversityInventors: Thomas J. Pinnavaia, Jingjie Guan
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Patent number: 5639933Abstract: A catalyst composition is prepared by a method comprising impregnating alumina with at least one platinum compound, followed by calcining, reducing treatment, and heating with gaseous aluminum chloride and gaseous titanium tetrachloride. The thus-prepared catalyst composition is employed in the isomerization of saturated C.sub.4 -C.sub.8 hydrocarbons (alkanes and/or cycloalkanes), preferably n-butane.Type: GrantFiled: April 12, 1996Date of Patent: June 17, 1997Assignee: Phillips Petroleum CompanyInventor: An-hsiang Wu
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Patent number: 5602292Abstract: Disclosed is an active catalyst in the hydroisomerization of waxes (paraffins), which catalyst is constituted by a carrier of acidic nature, of silica-alumina gel, and one or more metals belonging to Group VIIIA.Also a process for preparing said catalyst is disclosed.Type: GrantFiled: May 25, 1995Date of Patent: February 11, 1997Assignee: Eniricerche S.p.A.Inventors: Carlo Perego, Laura Zanibelli, Cristina Flego, Alberto Del Bianco, Giuseppe Bellussi
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Patent number: 5557029Abstract: In a process for isomerizing saturated C.sub.4- C.sub.10 hydrocarbons (preferably n-pentane) in the presence of a platinum/zeolite catalyst, wherein sulfur compounds are present in the feed as impurities and cause catalyst deactivating, at least one volatile chlorine compound (preferably tetrachloroethylene or carbon tetrachloride) is added to the feed in an amount sufficient to counteract the catalyst deactivation. A correlation between effective amounts of chloride additive(s) required to counteract the catalyst deactivating effect caused by specific sulfur compound(s) and a specific parameter of various sulfur compounds has been established. The water content in the isomerization feed is not to exceed about 60 ppm H.sub.2 O (based on the weight of the at least one feed hydrocarbons.Type: GrantFiled: September 6, 1995Date of Patent: September 17, 1996Assignee: Phillips Petroleum CompanyInventors: Fan-Nan Lin, Nak J. Sung, Stephen L. Ege, Thomas A. Lessard
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Patent number: 5530172Abstract: A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected.Type: GrantFiled: November 3, 1994Date of Patent: June 25, 1996Assignee: UOPInventors: Gregory A. Funk, Hermant W. Dandekar, Masami Kojima, Simon H. Hobbs
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Patent number: 5530173Abstract: A process for isomerizing a mixture of alkanes containing pentanes and at least one alkane having from 6 to about 8 carbon atoms and no more than one methyl branch has been developed.Type: GrantFiled: November 3, 1994Date of Patent: June 25, 1996Inventors: Gregory A. Funk, Hemant W. Dandekar
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Patent number: 5245103Abstract: In one embodiment, C.sub.4 -C.sub.10 alkanes and/or C.sub.5 -C.sub.10 cycloalkanes are isomerized in the presence of a catalyst which has been prepared by heating AlCl.sub.3, at least one aluminum sulfate-containing support material and at least one chlorinated hydrocarbon (preferably CCl.sub.4) at about 40.degree.-90.degree. C., followed by separating the formed solid from the chlorinated hydrocarbon.In another embodiment, C.sub.5 -C.sub.10 cycloalkane(s) are isomerized in the presence of a catalyst which has been prepared by heating AlCl.sub.3, at least one sulfur-containing acid (H.sub.2 SO.sub.4 and/or ClSO.sub.3 H and/or FSO.sub.3 H and/or CF.sub.3 SO.sub.3 H) and at least one chlorinated hydrocarbon (preferably CCl.sub.4) at about 40.degree.-90.degree. C., followed by separating the formed solid from the chlorinated hydrocarbon.Type: GrantFiled: October 19, 1992Date of Patent: September 14, 1993Assignee: Phillips Petroleum CompanyInventor: An-hsiang Wu
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Patent number: 5004859Abstract: An improved catalyst particle is disclosed for the conversion of hydrocarbons which comprises a refractory inorganic-oxide support, a Friedel-Crafts metal halide, and a surface-layer platinum-group metal component, wherein the concentration of platinum-group metal component on the surface layer of each catalyst particle is at least 1.5 times the concentration in the central core of the catalyst particle. An isomerization process also is disclosed which is particularly effective for the conversion of C.sub.4 -C.sub.7 alkanes.Type: GrantFiled: November 13, 1989Date of Patent: April 2, 1991Assignee: UOPInventors: Robert J. Schmidt, Robert S. Haizmann, Mark R. Ford, C. David Low, Frank H. Adams
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Patent number: 4929800Abstract: Hydrocarbon conversion processes are disclosed using a catalyst prepared by a method comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.Type: GrantFiled: August 9, 1988Date of Patent: May 29, 1990Assignee: University of FloridaInventors: Russell S. Drago, Edward E. Getty
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Patent number: 4719190Abstract: Method of preparing a hydrocarbon conversion and polymerization catalyst comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.Type: GrantFiled: October 22, 1986Date of Patent: January 12, 1988Assignee: University of FloridaInventors: Russell S. Drago, Edward E. Getty
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Patent number: 4327240Abstract: Isomerizable hydrocarbons are isomerized using a catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of catalytically effective amounts of a platinum group component, which is maintained in the elemental metallic state during the incorporation and pyrolysis of the rhenium carbonyl component, of a tin component, and of a halogen component.Type: GrantFiled: December 3, 1980Date of Patent: April 27, 1982Assignee: UOP Inc.Inventor: George J. Antos
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Patent number: 4283585Abstract: Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state:A platinum-group metal;second element from the group consisting of titanium, zirconium, tungsten and molybdenum; anda metal halide such as AlCl.sub.3.Type: GrantFiled: April 14, 1980Date of Patent: August 11, 1981Assignee: Compagnie Francaise de RaffinageInventors: Michel Legendre, Philippe Engelhard
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Patent number: 4207426Abstract: Isomerizable hydrocarbons including paraffins, cycloparaffins, olefins and alkyl aromatics are isomerized by contacting the hydrocarbon at isomerization conditions with a catalytic composite comprising a platinum group metal on an alpha-alumina monohydrate support wherein said support is prepared by admixing an alpha-alumina monohydrate with an aqueous amoniacal solution having a pH of at least about 7.5 to form a stable suspension and commingling said suspension with a salt of a strong acid to form an extrudable paste or dough. Upon extrusion, the extrudate is dried and calcined to form said alumina support.Type: GrantFiled: May 16, 1979Date of Patent: June 10, 1980Assignee: UOP Inc.Inventors: Roy T. Mitsche, George N. Pope
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Patent number: 4201696Abstract: Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state:a platinum-group metal;second element from the group consisting of titanium, zirconium, tungsten and molybdenum; anda metal halide such as AlCl.sub.3.Type: GrantFiled: November 27, 1978Date of Patent: May 6, 1980Assignee: Compagnie Francaise de RaffinageInventors: Michel Legendre, Philippe Engelhard
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Patent number: 4179581Abstract: Isomerizable hydrocarbons including paraffins, cycloparaffins, olefins and alkyl aromatics are isomerized by contacting the hydrocarbon at isomerization conditions with a catalytic composite comprising a platinum group metal on an alpha-alumina monohydrate support wherein said support is prepared by admixing an alpha-alumina monohydrate with an aqueous ammoniacal solution having a pH of at least about 7.5 to form a stable suspension and commingling said suspension with a salt of a strong acid to form an extrudable paste or dough. Upon extrusion, the extrudate is dried and calcined to form said alumina support.Type: GrantFiled: June 30, 1978Date of Patent: December 18, 1979Assignee: UOP Inc.Inventors: Roy T. Mitsche, George N. Pope