Patents by Inventor Christophe Gautreau

Christophe Gautreau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst
    Patent number: 7612245
    Abstract: A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group formed by liquid salts with general formula Q+A? (in which Q+ represents a quaternary ammonium and/or quaternary phosphonium and A? represents any anion which can form a liquid salt below 90° C.).
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: November 3, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Gerard Hillion, Laurent Savary, David Proriol, Christophe Gautreau, Denis Uzio, Helene Olivier-Bourbigou
  • Method for selective hydrogenation of polyunsaturated compounds into monounsaturated compounds using a homogeneous catalyst
    Publication number: 20060129010
    Abstract: A process for the selective hydrogenation of diolefinic compounds to mono-olefinic compounds uses a catalyst composition comprising at least one salt of a transition metal from groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group formed by liquid salts with general formula Q+A? (in which Q+ represents a quaternary ammonium and/or quaternary phosphonium and A? represents any anion which can form a liquid salt below 90° C.).
    Type: Application
    Filed: June 16, 2003
    Publication date: June 15, 2006
    Applicant: INSTITUTE FRANCAIS DU PETROLE
    Inventors: Gerard Hillion, Laurent Savary, David Proriol, Christophe Gautreau, Denis Uzio, Helene Olivier-Bourbigou
  • Catalyst for treating gasoline cuts containing diolefins, styrenic compounds and possibly mercaptans
    Patent number: 6686309
    Abstract: A catalyst for selective hydrogenation of unsaturated diolefinic and styrenic compounds in gasolines without hydrogenating the aromatic and mono-olerinic compounds is described. It can also eliminate marcaptans when they are present in these gasolines. The catalyst comprises particulate support on which palladium is deposited, distributed at the periphery of the catalyst particles, and at least one metal selected from molybdenum and tungsten, in the form of at least one oxide.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: February 3, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Blaise Didillon, Denis Uzio, Charles Cameron, Christophe Gautreau
  • Selective hydrogenation of diolefins to the olefins employing catalysts containing palladium, also tin and/or lead
    Patent number: 6245220
    Abstract: For transforming unsaturated diolefinic hydrocarbons to a &agr;-olefinic hydrocarbons at rates which are at least 1.5 times higher than the rate of hydrogenation of &agr;-olefinic hydrocarbons to saturated compounds, the catalyst contains palladium distributed at the periphery of particles (spherules or extrduates), and at least one element selected from tin and lead. Further, the tin and/or lead is advantageously distributed at the periphery of the spherules or extrudates.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: June 12, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Blaise Didillon, Charles Cameron, Christophe Gautreau
  • Selective hydrogenation catalysts containing palladium, also tin and/or lead, and the preparation and use thereof
    Patent number: 6239322
    Abstract: A particulate selective hydrogenation catalyst for hydrogenating unsaturated diolefinic hydrocarbons to &agr;-olefinic hydrocarbons at rates which are at least 1.5 times higher than the rate of hydrogenation of &agr;-olefinic hydrocarbons to saturated compounds contains palladium distributed at the periphery of particles (spherules or extrudates), and at least one element selected from tin and lead. Further, the tin and/or lead is advantageously distributed at the periphery of the spherules or extrudates.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: May 29, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Blaise Didillon, Charles Cameron, Christophe Gautreau
  • Selective hydrogenation catalysts containing palladium, also tin and/or lead, and the preparation and use thereof
    Patent number: 5955397
    Abstract: A particulate selective hydrogenation catalyst for transforming unsaturated diolefinic hydrocarbons to .alpha.-olefinic hydrocarbons is described, for the hydrogenation of diolefinic compounds to .alpha.-olefinic compounds at rates which are at least 1.5 times higher than the rate of hydrogenation of .alpha.-olefinic hydrocarbons to saturated compounds. The catalyst contains palladium distributed at the periphery of particles (spherules or extrudates), and at least one element selected from tin and lead. Further, the tin and/or lead is advantageously distributed at the periphery of the spherules or extrudates. The catalyst preparation is also described, as well as a process for selective hydrogenation of diolefins to .alpha.-olefins using the catalyst.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: September 21, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Blaise Didillon, Charles Cameron, Christophe Gautreau