Patents by Inventor Patrick C. Whitchurch

Patrick C. Whitchurch 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).

  • Ethylbenzene conversion and xylene isomerization processes and catalysts therefor
    Patent number: 7301064
    Abstract: Catalysts comprising a combination of molecular sieve having a pore diameter of from about 4 to 8 angstroms and a catalytically-effective amount of molybdenum hydrogenation component in an amorphous aluminum phosphate binder provide processes for isomerizing xylene and dealkylating ethylbenzene in feed streams that exhibit stability, selectivity and low ring loss.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: November 27, 2007
    Assignee: UOP LLC
    Inventors: Paula L. Bogdan, Patrick C. Whitchurch, Robert B. Larson, James E. Rekoske, Dimitri A. Trufanov, Victor C. Patton, Suheil F. Abdo
  • Process for isomerizing non-equilibrium xylene-containing feed streams
    Patent number: 7297830
    Abstract: Reduced co-production of toluene and C9 and higher aromatics such as trimethylbenzene, methylethylbenzene, and diethylbenzene is achieved in processes for the isomerization of xylenes to close to equilibrium using a layered catalyst having a thin outer layer of molecular sieve and hydrogenation metal component on a core, wherein at least about 75 mass-% of the hydrogenation metal component is in the outer layer.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: November 20, 2007
    Assignee: UOP LLC
    Inventors: Paula L. Bogdan, James E. Rekoske, Robert B. Larson, Patrick C. Whitchurch, John E. Bauer, Michael H. Quick