Patents by Inventor H. Shinn Hwang

H. Shinn Hwang 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: 6921738
    Abstract: The present invention is directed to a catalyzed metallic substrate, such as a metal plate. There is a catalyst layer supported on the substrate surface. The article is useful as part of exhaust systems which can be used with small engines for applications such as motorcycles, lawn mowers, chain saws, weed trimmers and the like. The present invention includes methods to prepare the catalyzed metal substrate and methods of use of the catalyzed substrate.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: July 26, 2005
    Assignee: Engelhard Corporation
    Inventors: H. Shinn Hwang, Joseph C. Dettling, Michael P. Galligan, Ronald J. Brown, John J. Mooney
  • Patent number: 6849572
    Abstract: A layered catalyst member useful for catalytically generating a hydrogen-rich gas from a hydrocarbon feed. The layered catalyst member comprises a monolith substrate containing at least one layer of a steam reforming catalyst in contact with at least one layer of a catalytic partial oxidation catalyst. The steam reforming catalyst comprises one or more platinum group metal components and the catalytic partial oxidation catalyst comprises palladium components.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: February 1, 2005
    Assignee: Engelhard Corporation
    Inventors: H. Shinn Hwang, Robert J. Farrauto
  • Publication number: 20040087439
    Abstract: The present invention is directed to a catalyzed metallic substrate, such as a metal plate. There is a catalyst layer supported on the substrate surface. The article is useful as part of exhaust systems which can be used with small engines for applications such as motorcycles, lawn mowers, chain saws, weed trimmers and the like. The present invention includes methods to prepare the catalyzed metal substrate and methods of use of the catalyzed substrate.
    Type: Application
    Filed: October 20, 2003
    Publication date: May 6, 2004
    Applicant: Engelhard Corporation
    Inventors: H. Shinn Hwang, Joseph C. Dettling, Michael P. Galligan, Ronald J. Brown, John J. Mooney
  • Publication number: 20030021748
    Abstract: A process for catalytically generating a hydrogen-rich gas from a hydrocarbon feed. A stream comprising the hydrocarbon feed, water and air is preheated to a temperature sufficiently high to initiate catalytic partial oxidation of the hydrocarbon feed. The preheated stream is then introduced into an autothermal reactor containing a layered catalyst member at a temperature sufficient to initiate and sustain both catalytic partial oxidation and catalytic steam reforming. At least part of the hydrocarbon feed is catalytically partially oxidized to produce a hydrogen-rich gas comprising hydrogen and carbon oxides and hydrocarbons remaining in the feed are steam reformed to produce further quantities of the hydrogen-rich gas. The layered catalyst member comprises a monolith substrate containing at least one layer of a steam reforming catalyst in contact with at least one layer of a catalytic partial oxidation catalyst.
    Type: Application
    Filed: August 19, 2002
    Publication date: January 30, 2003
    Applicant: Engelhard Corporation
    Inventors: H. Shinn Hwang, Robert J. Farrauto
  • Publication number: 20020132730
    Abstract: The present invention is directed to a catalyzed metallic substrate, such as a metal plate. There is a catalyst layer supported on the substrate surface. The article is useful as part of exhaust systems which can be used with small engines for applications such as motorcycles, lawn mowers, chain saws, weed trimmers and the like. The present invention includes methods to prepare the catalyzed metal substrate and methods of use of the catalyzed substrate.
    Type: Application
    Filed: July 26, 2001
    Publication date: September 19, 2002
    Applicant: Engelhard Corporation
    Inventors: H. Shinn Hwang, Joseph C. Dettling, Michael P. Galligan, Ronald J. Brown, John J. Mooney
  • Patent number: 6436363
    Abstract: A process for catalytically generating a hydrogen-rich gas from a hydrocarbon feed. A stream comprising the hydrocarbon feed , water and air is preheated to a temperature sufficiently high to initiate catalytic partial oxidation of the hydrocarbon feed. The preheated stream is then introduced into an autothermal reactor containing a layered catalyst member at a temperature sufficient to initiate and sustain both catalytic partial oxidation and catalytic steam reforming. At least part of the hydrocarbon feed is catalytically partially oxidized to produce a hydrogen-rich gas comprising hydrogen and carbon oxides and hydrocarbons remaining in the feed are steam reformed to produce further quantities of the hydrogen-rich gas. The layered catalyst member comprises a monolith substrate containing at least one layer of a steam reforming catalyst in contact with at least one layer of a catalytic partial oxidation catalyst.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: August 20, 2002
    Assignee: Engelhard Corporation
    Inventors: H. Shinn Hwang, Robert J. Farrauto
  • Patent number: 4136104
    Abstract: This invention provides a novel rhodium-ruthenium catalyst composition which is adapted for highly selective conversion of synthesis gas to acetic acid and related oxygenated two-carbon hydrocarbon derivatives.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: January 23, 1979
    Assignee: Celanese Corporation
    Inventors: H. Shinn Hwang, Paul D. Taylor
  • Patent number: 4101450
    Abstract: This invention provides a novel rhodium-ruthenium catalyst composition which is adapted for highly selective conversion of synthesis gas to acetic acid and related oxygenated two-carbon hydrocarbon derivatives.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: July 18, 1978
    Assignee: Celanese Corporation
    Inventors: H. Shinn Hwang, Paul D. Taylor