With Inorganic Material Other Than Halogen-containing Patents (Class 585/746)
  • Patent number: 8323478
    Abstract: 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: Grant
    Filed: July 21, 2011
    Date of Patent: December 4, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Sven Ivar Hommeltoft, Howard S. Lacheen
  • Patent number: 8142725
    Abstract: 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: Grant
    Filed: July 8, 2011
    Date of Patent: March 27, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Sven Ivar Hommeltoft, Howard S. Lacheen
  • Patent number: 8070939
    Abstract: 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: Grant
    Filed: September 18, 2008
    Date of Patent: December 6, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Sven Ivar Hommeltoft, Howard S. Lacheen
  • Publication number: 20040059173
    Abstract: 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: Application
    Filed: September 16, 2003
    Publication date: March 25, 2004
    Inventors: Jindrich Houzvicka, John Zavilla, Konrad Herbst
  • Patent number: 6320089
    Abstract: 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: Grant
    Filed: January 9, 2001
    Date of Patent: November 20, 2001
    Assignee: UOP LLC
    Inventor: Ralph D. Gillespie
  • Patent number: 6140547
    Abstract: 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: Grant
    Filed: December 1, 1998
    Date of Patent: October 31, 2000
    Assignee: Phillips Petroleum Company
    Inventors: Fan-Nan Lin, Edgar D. Davis
  • Patent number: 5763730
    Abstract: 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: Grant
    Filed: June 18, 1996
    Date of Patent: June 9, 1998
    Assignee: UOP
    Inventors: Hemant W. Dandekar, Gregory A. Funk, Ralph D. Gillespie, Herman A. Zinnen, Charles P. McGonegal, Masami Kojima, Simon H. Hobbs
  • Patent number: 5744684
    Abstract: 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: Grant
    Filed: June 18, 1996
    Date of Patent: April 28, 1998
    Assignee: UOP
    Inventors: Herman A. Zinnen, Charles P. McGonegal, Hemant W. Dandekar, Gregory A. Funk, Ralph D. Gillespie
  • Patent number: 5744683
    Abstract: 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: Grant
    Filed: June 18, 1996
    Date of Patent: April 28, 1998
    Assignee: UOP
    Inventors: Hemant W. Dandekar, Gregory A. Funk, Simon H. Hobbs, Masami Kojima, Ralph D. Gillespie, Herman A. Zinnen, Charles P. McGonegal
  • Patent number: 5530172
    Abstract: 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: Grant
    Filed: November 3, 1994
    Date of Patent: June 25, 1996
    Assignee: UOP
    Inventors: Gregory A. Funk, Hermant W. Dandekar, Masami Kojima, Simon H. Hobbs
  • Patent number: 5530173
    Abstract: 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: Grant
    Filed: November 3, 1994
    Date of Patent: June 25, 1996
    Inventors: Gregory A. Funk, Hemant W. Dandekar
  • Patent number: 5510561
    Abstract: 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: Grant
    Filed: March 6, 1995
    Date of Patent: April 23, 1996
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Larry G. Sherman, William A. Yuill
  • Patent number: 5292988
    Abstract: 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: Grant
    Filed: February 3, 1993
    Date of Patent: March 8, 1994
    Assignee: Phillips Petroleum Company
    Inventor: An-hsiang Wu
  • Patent number: 5254794
    Abstract: 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: Grant
    Filed: August 26, 1992
    Date of Patent: October 19, 1993
    Assignee: Phillips Petroleum Company
    Inventor: An-hsiang Wu
  • Patent number: 4424387
    Abstract: 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: Grant
    Filed: March 15, 1983
    Date of Patent: January 3, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4357483
    Abstract: 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: Grant
    Filed: August 31, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4357484
    Abstract: 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: Grant
    Filed: August 31, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventor: George M. Kramer
  • Patent number: 4283585
    Abstract: 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: Grant
    Filed: April 14, 1980
    Date of Patent: August 11, 1981
    Assignee: Compagnie Francaise de Raffinage
    Inventors: Michel Legendre, Philippe Engelhard
  • Patent number: 4207426
    Abstract: 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: Grant
    Filed: May 16, 1979
    Date of Patent: June 10, 1980
    Assignee: UOP Inc.
    Inventors: Roy T. Mitsche, George N. Pope
  • Patent number: 4201696
    Abstract: 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: Grant
    Filed: November 27, 1978
    Date of Patent: May 6, 1980
    Assignee: Compagnie Francaise de Raffinage
    Inventors: Michel Legendre, Philippe Engelhard
  • Patent number: 4179581
    Abstract: 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: Grant
    Filed: June 30, 1978
    Date of Patent: December 18, 1979
    Assignee: UOP Inc.
    Inventors: Roy T. Mitsche, George N. Pope
  • Patent number: RE33080
    Abstract: 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: Grant
    Filed: August 14, 1986
    Date of Patent: October 3, 1989
    Assignee: Exxon Research and Engineering Company
    Inventor: George M. Kramer