Patents by Inventor Robert Cleverdon

Robert Cleverdon 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).

  • Patent number: 7432409
    Abstract: A process for the production of a high quality gasoline blending components from refinery process streams by the alkylation of light isoparaffins with olefins using an ionic liquid catalyst is disclosed. The process includes reacting a refinery stream containing isopentane and/or isobutane with a refinery stream containing ethylene and/or propylene and butylenes under alkylation conditions in the presence of a chloroaluminate ionic liquid catalyst comprising a hydrocarbyl substituted pyridinium chloroaluminate or a hydrocarbyl substituted imidazolium chloroaluminate of the general formulas A and B, respectively. Where R?H, methlyl, ethyl, propyl, butyl, pentyl or hexyl group and X is a chloroaluminate, and R1 and R2=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and where R1 and R2 may or may not be the same.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 7, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Saleh Elomari, Steve Trumbull, Hye Kyung C. Timken, Robert Cleverdon
  • Patent number: 7432408
    Abstract: An integrated refining process for the production of high quality gasoline blending components from low value components is disclosed. In addition there is disclosed a method of improving the operating efficiency of a refinery by reducing fuel gas production and simultaneously producing high quality gasoline blending components of low volatility. The processes involve the alkylation of a refinery stream containing pentane with ethylene using an ionic liquid catalyst.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 7, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung C. Timken, Saleh Elomari, Steve Trumbull, Robert Cleverdon
  • Publication number: 20060131209
    Abstract: An integrated refining process for the production of high quality gasoline blending components from low value components is disclosed. In addition there is disclosed a method of improving the operating efficiency of a refinery by reducing fuel gas production and simultaneously producing high quality gasoline blending components of low volatility. The processes involve the alkylation of a refinery stream containing pentane with ethylene using an ionic liquid catalyst.
    Type: Application
    Filed: December 21, 2004
    Publication date: June 22, 2006
    Inventors: Hye Kyung Timken, Saleh Elomari, Steve Trumbull, Robert Cleverdon
  • Publication number: 20060135839
    Abstract: A process for the production of a high quality gasoline blending components from refinery process streams by the alkylation of light isoparaffins with olefins using an ionic liquid catalyst is disclosed. The process includes reacting a refinery stream containing isopentane and/or isobutane with a refinery stream containing ethylene and/or propylene and butylenes under alkylation conditions in the presence of a chloroaluminate ionic liquid catalyst comprising a hydrocarbyl substituted pyridinium halide or a hydrocarbyl substituted imidazolium halide of the general formulas A and B, respectively. Where R=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and X is a halide and preferably a chloride, and R1 and R2=H, methyl, ethyl, propyl, butyl, pentyl or hexyl group and where R1 and R2 may or may not be the same.
    Type: Application
    Filed: December 21, 2004
    Publication date: June 22, 2006
    Inventors: Saleh Elomari, Steve Trumbull, Hye Kyung Timken, Robert Cleverdon