Patents by Inventor Xuchu Ma

Xuchu Ma 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).

  • Iron and cobalt based fischer-tropsch pre-catalysts and catalysts
    Patent number: 9114378
    Abstract: A method of making iron and cobalt pre-catalysts and catalysts in activated, finished form suitable for use in Fischer-Tropsch synthesis. The pre-catalysts are prepared by mixing an iron or cobalt salt, a base, and a metal oxide textural promoter or support. The reaction is carried out in a solvent deficient environment. The resulting product is then calcined at temperatures of about 300-500° C. to produce a metal oxide. The catalysts are prepared by reducing the metal oxide in the presence of hydrogen at temperatures of about 300-500° C. and carbiding the reduced metal in the case of iron.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Assignee: Brigham Young University
    Inventors: Brian F. Woodfield, Calvin H. Bartholomew, Kyle Brunner, William Hecker, Xuchu Ma, Fen Xu, Lynn Astle
  • Single reaction synthesis of texturized catalysts
    Patent number: 9079164
    Abstract: Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 14, 2015
    Assignee: Brigham Young University
    Inventors: Brian F. Woodfield, Stacey Smith, David Selck, Calvin H. Bartholomew, Xuchu Ma, Fen Xu, Rebecca E. Olsen, Lynn Astle
  • IRON AND COBALT BASED FISCHER-TROPSCH PRE-CATALYSTS AND CATALYSTS
    Publication number: 20130274093
    Abstract: A method of making iron and cobalt pre-catalysts and catalysts in activated, finished form suitable for use in Fischer-Tropsch synthesis. The pre-catalysts are prepared by mixing an iron or cobalt salt, a base, and a metal oxide textural promoter or support. The reaction is carried out in a solvent deficient environment. The resulting product is then calcined at temperatures of about 300-500° C. to produce a metal oxide. The catalysts are prepared by reducing the metal oxide in the presence of hydrogen at temperatures of about 300-500° C. and carbiding the reduced metal in the case of iron.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Inventors: Brian F. Woodfield, Calvin H. Bartholomew, Kyle Brunner, William Hecker, Xuchu Ma, Fen Xu, Lynn Astle
  • SINGLE REACTION SYNTHESIS OF TEXTURIZED CATALYSTS
    Publication number: 20130267411
    Abstract: Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 10, 2013
    Applicant: BRIGHAM YOUNG UNIVERSITY,
    Inventors: Brian F. Woodfield, Stacey Smith, David Selck, Calvin H. Bartholomew, Xuchu Ma, Fen Xu, Rebecca E. Olsen, Lynn Astle