Patents by Inventor Richard Tuell

Richard Tuell 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).

  • Fischer-tropsch catalyst prepared with a high purity iron precursor
    Patent number: 7199077
    Abstract: A Fischer-Tropsch catalyst comprising iron and at least one promoter is prepared via a method which comprises the preparation of a high purity iron precursor and which uses a nominal amount of water in the catalyst production. The catalyst particles prepared with the high purity iron precursor have an essentially spherical particle shape, a relatively narrow particle size distribution range, and a high surface area.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: April 3, 2007
    Assignee: Sud-Chemie Inc.
    Inventors: X. D Hu, Robert J. O'Brien, Richard Tuell, Esternio Conca, Carlo Rubini, Guido Petrini
  • High temperature shift catalyst prepared with a purity iron precursor
    Patent number: 7037876
    Abstract: A high temperature water gas shift catalyst comprising iron and at least one promoter is prepared via a method which comprises the preparation of a high purity iron precursor and which uses a nominal amount of water in the catalyst production. The catalyst prepared according to the inventive method is more efficient in hydrogen production under the high temperature water gas shift reaction conditions in a fixed bed test than prior art catalysts of similar composition.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: May 2, 2006
    Assignee: Sud-Chemie Inc.
    Inventors: Robert O'Brien, X. D. Hu, Richard Tuell, Yeping Cai
  • High temperature shift catalyst prepared with a high purity iron precursor
    Publication number: 20040077483
    Abstract: A high temperature water gas shift catalyst comprising iron and at least one promoter is prepared via a method which comprises the preparation of a high purity iron precursor and which uses a nominal amount of water in the catalyst production. The catalyst prepared according to the inventive method is more efficient in hydrogen production under the high temperature water gas shift reaction conditions in a fixed bed test than prior art catalysts of similar composition.
    Type: Application
    Filed: August 18, 2003
    Publication date: April 22, 2004
    Inventors: Robert O'Brien, X.D. Hu, Richard Tuell, Yeping Cai
  • Fischer-tropsch catalyst prepared with a high purity iron precursor
    Publication number: 20040009871
    Abstract: A Fischer-Tropsch catalyst comprising iron and at least one promoter is prepared via a method which comprises the preparation of a high purity iron precursor and which uses a nominal amount of water in the catalyst production. The catalyst particles prepared with the high purity iron precursor have an essentially spherical particle shape, a relatively narrow particle size distribution range, and a high surface area.
    Type: Application
    Filed: May 29, 2003
    Publication date: January 15, 2004
    Inventors: X.D. Hu, Robert J. O'Brien, Richard Tuell, Esternio Conca, Carlo Rubini, Guido Petrini