Patents by Inventor Cynthia D. Ontiveros

Cynthia D. Ontiveros 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).

  • Selective hydrotreating catalyst
    Patent number: 5348928
    Abstract: A catalyst and method of making a catalyst are provided for the selective hydrotreating of a selective hydrotreating feedstock comprising reacting the feedstock with hydrogen at hydrotreating conditions in the presence of a catalyst comprising a hydrogenation component and a support component. The hydrogenation component comprises a Group VIB metal component and a Group VIII metal component wherein the Group VIB metal component is present in an amount ranging from about 4 wt % to about 20 wt % and the Group VIII metal component is present in an amount ranging from about 0.5 wt % to about 10 wt %, both calculated as oxides and based on the total catalyst weight. The support component comprises from about 0.5 wt % to about 50 wt % of a magnesium component and from about 0.02 wt % to about 10 wt % of an alkali metal component, both calculated as oxides and based on the total catalyst weight.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: September 20, 1994
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, P. Donald Hopkins, Riitta L. A. Olleandorff, Pablo D. Hendler, Cynthia D. Ontiveros, Don M. Washecheck
  • Selective hydrotreating
    Patent number: 5266188
    Abstract: A process, catalyst, and method of making a catalyst are provided for the selective hydrotreating of a selective hydrotreating feedstock comprising reacting the feedstock with hydrogen at hydrotreating conditions in the presence of a catalyst comprising a hydrogenation component and a support component. The hydrogenation component comprises a Group VIB metal component and a Group VIII metal component wherein the Group VIB metal component is present in an amount ranging from about 4 wt % to about 20 wt % and the Group VIII metal component is present in an amount ranging from about 0.5 wt % to about 10 wt %, both calculated as oxides and based on the total catalyst weight. The support component comprises from about 0.5 wt % to about 50 wt % of a magnesium component and from about 0.02 wt % to about 10 wt % of an alkali metal component, both calculated as oxides and based on the total catalyst weight.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: November 30, 1993
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, P. Donald Hopkins, Riitta L. A. Ollendorff, Pablo D. Hendler, Cynthia D. Ontiveros, Don M. Washecheck