Patents by Inventor Youqi Tang

Youqi Tang 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).

  • Conversion of carbon monoxide utilizing a perovskite-type rare earth complex oxide catalyst
    Patent number: 5443807
    Abstract: The present invention relates to rare earth complex oxide combustion catalysts wherein perovskite-type rare earth complex oxide active components are carried on a support using mullite as the main phase. The present invention relates also to a process for preparing a rare earth complex oxide combustion catalyst which comprises impregnatiing the support with the solution of the metallic ions prepared by the ABO.sub.3 stoichiometry and then drying and calcining it. Furthermore, the present invention relates to the use of the said catalyst as a combustion catalyst for CO in the fluid catalytic cracking (FCC) process of petroleum refining.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: August 22, 1995
    Assignee: Peking University
    Inventors: Youqi Tang, Bingxiong Lin
  • Perovskite-type rare earth complex oxide combustion catalysts
    Patent number: 5242881
    Abstract: The present invention relates to rare earth complex oxide combustion catalysts wherein perovskite-type rare earth complex oxide active components are carried on a support using mullite as the main phase. The present invention relates also to a process for preparing a rare earth complex oxide combustion catalyst which comprises impregnating the support with the solution of the metallic ions prepared by the ABO.sub.3 stoichiometry and then drying and calcining it. Furthermore, the present invention relates to the use of the said catalyst as a combustion catalyst for CO in the fluid catalytic cracking (FCC) process of petroleum refining.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: September 7, 1993
    Assignee: Peking University
    Inventors: Youqi Tang, Bingxiong Lin