Patents by Inventor Constance Setzer

Constance Setzer 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).

  • Process for removal of nitrogen containing contaminants from gas oil feedstreams
    Patent number: 7160438
    Abstract: The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises first treating C12 and higher hydrocarbon petroleum feedstock having nitrogen and sulfur containing compounds therein with a porous, particulate adsorbent comprising a silica matrix having an effective amount of metal atoms therein to cause the adsorbent to have Lewis acidity of at least 500 ?mol/g and then treating the resultant feedstock to catalytic hydrodesulfurization to produce a hydrocarbon fuel having low sulfur and nitrogen content.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: January 9, 2007
    Assignee: W.R. Grace & Co. - Conn.
    Inventors: Markus Friedrich Manfred Lesemann, Constance Setzer
  • Process for removal of nitrogen containing contaminants from gas oil feedstreams
    Patent number: 7087156
    Abstract: The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises first treating C12 and higher hydrocarbon petroleum feedstock having nitrogen and sulfur containing compounds therein with a porous, particulate adsorbent comprising a silica matrix having an effective amount of metal atoms therein to cause the adsorbent to have Lewis acidity of at least 500 ?mol/g and then treating the resultant feedstock to catalytic hydrodesulfurization to produce a hydrocarbon fuel having low sulfur and nitrogen content.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: August 8, 2006
    Assignee: W.R. Grace & Co. - Conn.
    Inventors: Markus Friedrich Manfred Lesemann, Constance Setzer
  • Process for removal of nitrogen containing contaminants from gas oil feedstreams
    Publication number: 20040118749
    Abstract: The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises first treating C12 and higher hydrocarbon petroleum feedstock having nitrogen and sulfur containing compounds therein with a porous, particulate adsorbent comprising a silica matrix having an effective amount of metal atoms therein to cause the adsorbent to have Lewis acidity of at least 500 &mgr;mol/g and then treating the resultant feedstock to catalytic hydrodesulfurization to produce a hydrocarbon fuel having low sulfur and nitrogen content.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: Markus Friedrich Manfred Lesemann, Constance Setzer