Patents by Inventor Arthur A. Foutsitzis

Arthur A. Foutsitzis 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).

  • Cleanup of hydrocarbon-conversion system
    Patent number: 5108582
    Abstract: An aromatic-hydrocarbon solvent is utilized to purge contaminants, such as sulfur, from a conversion system. Complementary contaminant-removal steps may include oxidation, reduction, and contaminant removal with a sacrificial particulate bed. This solvent purge avoids deactivation of a subsequently loaded contaminant-sensitive catalyst, such as a reforming catalyst selective for dehydrocyclization.
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: April 28, 1992
    Assignee: UOP
    Inventors: Arthur A. Foutsitzis, Frank G. Padrta, Michael B. Russ
  • Cleanup of hydrocarbon-conversion system
    Patent number: 5035792
    Abstract: A hydrocarbon solvent is utilized to purge contaminants, such as sulfur, from a conversion system. Complementary contaminant-removal steps may include oxidation, reduction, and contaminant removal with a sacrificial particulate bed. This solvent purge avoids deactivation of a subsequently loaded contaminant-sensitive catalyst, such as a reforming catalyst selective for dehydrocyclization.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: July 30, 1991
    Assignee: UOP
    Inventors: Arthur A. Foutsitzis, Frank G. Padrta, Michael B. Russ
  • Phosphorus containing alumina catalyst for the production of aromatics
    Patent number: 4636483
    Abstract: Superior tolerance to catalyst coking is obtained with a catalytic composite comprising a gallium component and a crystalline aluminosilicate incorporated with a phorphorus containing alumina. A five-fold reduction in the coke content of the spent catalyst of the instant invention is observed which is directly attributable to the phosphorus containing alumina. A novel method of preparing this catalyst is presented, along with a novel process for the dehydrocyclodimerization of C.sub.2 -C.sub.5 aliphatic hydrocarbons.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: January 13, 1987
    Assignee: UOP Inc.
    Inventors: Solveg S. Kjell, Tai-Hsiang Chao, Nancy J. Flint, Arthur A. Foutsitzis