With Inorganic Material Other Than Halogen-containing Patents (Class 585/746)
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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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Publication number: 20040059173Abstract: A process for the conversion of linear and/or branched paraffins hydrocarbons, catalysed by an ionic liquid catalyst, in the presence of a cyclic hydrocarbon additive containing a tertiary carbon atom. The presence of the specific hydrocarbon additives influences the reaction mechanism by increasing the selectivity towards the formation of paraffin hydrocarbons with a higher degree of branching.Type: ApplicationFiled: September 16, 2003Publication date: March 25, 2004Inventors: Jindrich Houzvicka, John Zavilla, Konrad Herbst
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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: 6140547Abstract: An isomerization process for converting an isomerization feed stream containing alkanes having about 4 carbon atoms to about 10 carbon atoms per molecule and cycloalkanes having about 5 carbon atoms to about 10 carbon atoms per molecule to at least one product hydrocarbon isomer. The isomerization feed stream, which contains at least one feed hydrocarbon and hydrogen, is contacted in an isomerization zone at effective isomerization conditions with a catalyst where deactivation of such catalyst occurs in the isomerization zone. The isomerization process includes the presence of an additive in the isomerization feed stream. The concentration of the additive is sufficient to alleviate or diminish the deactivation of the catalyst and to maintain a substantially constant conversion of the at least one feed hydrocarbon to the at least one product hydrocarbon isomer at effective isomerization conditions.Type: GrantFiled: December 1, 1998Date of Patent: October 31, 2000Assignee: Phillips Petroleum CompanyInventors: Fan-Nan Lin, Edgar D. Davis
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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: 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: 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: 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: 5510561Abstract: A discrete catalyst and processes for the alkylation of isoalkanes with alkenes under homogenous fluid conditions. The catalyst is formed by contacting, under fluid conditions, a homogenous fluid containing a paraffin hydrocarbon having from 4 to 12 carbon atoms with a Lewis acid/protic Bronsted acid pair to produce a discrete catalytic complex that is soluble in the fluid. The discrete catalyst is the reaction product of the acid pair and alkanes and includes hydrocarbon ligands of limited chain length rendering it soluble in the fluid. The catalyst is active for the alkylation of isoalkanes, under homogenous fluid conditions.Type: GrantFiled: March 6, 1995Date of Patent: April 23, 1996Assignee: Kerr-McGee Chemical CorporationInventors: Larry G. Sherman, William A. Yuill
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Patent number: 5292988Abstract: Materials which have been prepared by a method which includes the steps of (1) impregnating alumina with a sulfate of at least one metal selected from the group consisting of copper, iron, cobalt, nickel, manganese, zinc and magnesium, (2) calcining the thus-obtained impregnated alumina materials, and (3) heating the calcined materials with AlCl.sub.3 and at least one chlorinated hydrocarbon (preferably CCl.sub.4) at a temperature of about 40.degree.-90.degree. C. are employed as catalysts in the isomerization of C.sub.5 -C.sub.10 cycloalkanes (preferably methylcyclopentane). A select group of the thus-prepared materials are employed as catalysts in the isomerization of C.sub.4 -C.sub.10 alkanes (preferably n-pentane and 2-methylbutane). Preferably, the catalyst preparation method also includes a step of treating the calcined impregnated alumina materials with gaseous hydrogen chloride before they are heated with AlCl.sub.3 and the chlorinated hydrocarbon(s).Type: GrantFiled: February 3, 1993Date of Patent: March 8, 1994Assignee: Phillips Petroleum CompanyInventor: An-hsiang Wu
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Patent number: 5254794Abstract: Isomerization catalyst compositions are prepared by heating aluminum chloride, at least one of several metal salts (preferably CuSO.sub.4), at least one of several inorganic support materials (alumina, silica, aluminum phosphate and combinations thereof) and at least one chlorinated hydrocarbon (preferably CCl.sub.4) at a temperature of about 40.degree.-90.degree. C. The dried catalyst compositions are used for the isomerization of C.sub.5 -C.sub.10 cycloalkanes and/or C.sub.4 -C.sub.10 alkanes.Type: GrantFiled: August 26, 1992Date of Patent: October 19, 1993Assignee: Phillips Petroleum CompanyInventor: An-hsiang Wu
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Patent number: 4424387Abstract: A process is described for paraffin isomerization under strong acid conditions in which an adamantyl carboxylic acid or sulfonic acid is used to substantially increase the reaction rate of the isomerization.Type: GrantFiled: March 15, 1983Date of Patent: January 3, 1984Assignee: Exxon Research and Engineering Co.Inventor: George M. Kramer
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Patent number: 4357483Abstract: A process is described for paraffin isomerization under strong acid conditions in which in aminoalkyladamantane is used to substantially increase the reaction rate of the isomerization.Type: GrantFiled: August 31, 1981Date of Patent: November 2, 1982Assignee: Exxon Research and Engineering Co.Inventor: George M. Kramer
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Patent number: 4357484Abstract: A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization.Type: GrantFiled: August 31, 1981Date of Patent: November 2, 1982Assignee: Exxon Research and Engineering Co.Inventor: George M. Kramer
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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
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Patent number: RE33080Abstract: A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization.Type: GrantFiled: August 14, 1986Date of Patent: October 3, 1989Assignee: Exxon Research and Engineering CompanyInventor: George M. Kramer