Patents by Inventor Jui-Hsin R. Huang

Jui-Hsin R. Huang 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).

  • Patent number: 6989403
    Abstract: A process for regenerating a slurry Fischer-Tropsch catalyst, which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder that is fluidizable; fluidizing the catalyst powder; treating the catalyst powder with an oxygen treatment; reducing the catalyst powder with a reducing gas to form a reduced catalyst powder; and mixing the reduced catalyst powder with hydrocarbons to form a regenerated, slurry catalyst. The oxidation and reduction steps may be repeated. An oxygen treatment includes using a fixed O2 level with ramped temperatures, fixed temperatures with increased O2 levels, or a combination.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: January 24, 2006
    Assignee: Syntroleum Corporation
    Inventors: Jui-Hsin R. Huang, Kym Arcuri, Kenneth Agee, Paul F. Schubert
  • Publication number: 20040259963
    Abstract: A process for regenerating a slurry Fischer-Tropsch catalyst, which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder that is fluidizable; fluidizing the catalyst powder; treating the catalyst powder with an oxygen treatment; reducing the catalyst powder with a reducing gas to form a reduced catalyst powder; and mixing the reduced catalyst powder with hydrocarbons to form a regenerated, slurry catalyst. The oxidation and reduction steps may be repeated. An oxygen treatment includes using a fixed O2 level with ramped temperatures, fixed temperatures with increased O2 levels, or a combination.
    Type: Application
    Filed: April 23, 2004
    Publication date: December 23, 2004
    Inventors: Jui-Hsin R. Huang, Kym Arcuri, Kenneth Agee, Paul F. Schubert
  • Patent number: 6812179
    Abstract: A process for regenerating a slurry Fischer-Tropsch catalyst, which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder that is fluidizable; fluidizing the catalyst powder; treating the catalyst powder with an oxygen treatment; reducing the catalyst powder with a reducing gas to form a reduced catalyst powder; and mixing the reduced catalyst powder with hydrocarbons to form a regenerated, slurry catalyst. The oxidation and reduction steps may be repeated. An oxygen treatment includes using a fixed O2 level with ramped temperatures, fixed temperatures with increased O2 levels, or a combination.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: November 2, 2004
    Assignee: Syntroleum Corporation
    Inventors: Jui-Hsin R. Huang, Kenneth L. Agee, Kym B. Arcuri, Paul F. Schubert
  • Publication number: 20020183403
    Abstract: A process for regenerating a slurry Fischer-Tropsch catalyst, which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder that is fluidizable; fluidizing the catalyst powder; treating the catalyst powder with an oxygen treatment; reducing the catalyst powder with a reducing gas to form a reduced catalyst powder; and mixing the reduced catalyst powder with hydrocarbons to form a regenerated, slurry catalyst. The oxidation and reduction steps may be repeated. An oxygen treatment includes using a fixed O2 level with ramped temperatures, fixed temperatures with increased O2 levels, or a combination.
    Type: Application
    Filed: April 12, 2002
    Publication date: December 5, 2002
    Inventors: Jui-Hsin R. Huang, Kenneth L. Agee, Kym B. Arcuri, Paul F. Schubert