Patents by Inventor Yanwen SHEN

Yanwen SHEN 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).

  • Method for generating methane from a carbonaceous feedstock
    Patent number: 9994870
    Abstract: The present invention provides a method for generating methane from a carbonaceous feedstock with simultaneous in situ sequestration of carbon dioxide to afford a biogas comprising at least 85 percent by volume methane, the method comprising anaerobically incubating a particulate additive in contact with a carbonaceous feedstock in a neutral or alkaline aqueous culture medium containing a culture of methanogenic consortia and collecting methane generated therefrom. The additive comprises at least one material selected from a biochar, an ash produced by gasification or combustion of a carbonaceous material, a black carbon soil, and a Terra Preta soil.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: June 12, 2018
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Seth W. Snyder, Meltem Urgun-Demirtas, Yanwen Shen
  • METHOD FOR GENERATING METHANE FROM A CARBONACEOUS FEEDSTOCK
    Publication number: 20160138048
    Abstract: The present invention provides a method for generating methane from a carbonaceous feedstock with simultaneous in situ sequestration of carbon dioxide to afford a biogas comprising at least 85 percent by volume methane, the method comprising anaerobically incubating a particulate additive in contact with a carbonaceous feedstock in a neutral or alkaline aqueous culture medium containing a culture of methanogenic consortia and collecting methane generated therefrom. The additive comprises at least one material selected from a biochar, an ash produced by gasification or combustion of a carbonaceous material, a black carbon soil, and a Terra Preta soil.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 19, 2016
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Seth W. SNYDER, Meltem URGUN-DEMIRTAS, Yanwen SHEN