Patents by Inventor Zhenhou Zhou

Zhenhou Zhou 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).

  • Process for producing ethanol using a solid catalyst
    Patent number: 9670120
    Abstract: The present invention relates to a solid catalyst for producing ethanol from acetic acid, ethyl acetate, or mixtures thereof comprising a core region comprising a Group IIA metal and a surface region surrounding the core region and comprising one or more main metals. The total loading of the main metals in the catalyst is greater than or equal to 1 wt. %. Also more than 85% of main metals are located in the surface region, based on the total loading of the main metals in the catalyst. The surface region may comprise two or more layers.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 6, 2017
    Assignee: CELANESE INTERNATIONAL CORPORATION
    Inventors: Heiko Weiner, Zhenhou Zhou
  • PROCESS FOR PRODUCING ETHANOL USING A SOLID CATALYST
    Publication number: 20160214915
    Abstract: The present invention relates to a solid catalyst for producing ethanol from acetic acid, ethyl acetate, or mixtures thereof comprising a core region comprising a Group IIA metal and a surface region surrounding the core region and comprising one or more main metals. The total loading of the main metals in the catalyst is greater than or equal to 1 wt. %. Also more than 85% of main metals are located in the surface region, based on the total loading of the main metals in the catalyst. The surface region may comprise two or more layers.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 28, 2016
    Inventors: Heiko Weiner, Zhenhou Zhou
  • Hydrogenation Catalysts with Cobalt and Alkaline-Earth Metal Modified Supports
    Publication number: 20150209762
    Abstract: A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of a catalyst comprising a modified support having cobalt and an alkaline earth support modifier. The active metals may include a first metal of palladium, platinum, and combinations thereof and a second metal of copper, iron, nickel, zinc, silver, chromium, tin, and combinations thereof.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 30, 2015
    Applicant: Celanese International Corporation
    Inventors: Heiko Weiner, Zhenhou Zhou, Dick Nagaki