Patents by Inventor Marvin J. Schwedock

Marvin J. Schwedock 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).

  • Resid hydroprocessing catalyst
    Patent number: 5334307
    Abstract: A catalyst useful for hydroprocessing a hydrocarbon-containing oil contains at least one hydrogenation component on an amorphous, porous refractory oxide support containing between 2 and 8 weight percent of silica. The catalyst is prepared by impregnating support particles having a narrow pore size distribution and a median pore diameter greater than about 120 angstroms with a solution containing precursors of the hydrogenation components, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon hydroprocessing reactions, particularly simultaneous hydrogenative desulfurization, demetallization and denitrogenation of residuum-containing oils.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: August 2, 1994
    Assignee: Union Oil Company of California
    Inventors: Howard D. Simpson, Marvin J. Schwedock, John W. Ward
  • Resid hydroprocessing catalyst
    Patent number: 5210061
    Abstract: A catalyst useful for hydroprocessing a hydrocarbon-containing oil contains at least one hydrogenation component on an amorphous, porous refractory oxide support containing between 2 and 8 weight percent of silica. The catalyst is prepared by impregnating support particles having a narrow pore size distribution and a median pore diameter greater than about 120 angstroms with a solution containing precursors of the hydrogenation components, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon hydroprocessing reactions, particularly simultaneous hydrogenative desulfurization, demetallization and denitrogenation of residuum-containing oils.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: May 11, 1993
    Assignee: Union Oil Company of California
    Inventors: Howard D. Simpson, Marvin J. Schwedock, John W. Ward
  • Temperature controlled catalytic demetallization of hydrocarbons
    Patent number: 4729826
    Abstract: In the catalytic processing of hydrocarbons, a hydrocarbon oil is successively contacted with a particulate catalyst in a first reaction zone and contacted at a higher temperature with a second portion of the particulate catalyst in the same reaction zone or in a second reaction zone.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: March 8, 1988
    Assignee: Union Oil Company of California
    Inventors: David A. Lindsay, Michael C. Smith, Walter Albertson, Marvin J. Schwedock