Patents by Inventor Akira Johana

Akira Johana 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).

  • Apparatus for treating COS for gas produced by gasification and method for treating COS
    Patent number: 7749455
    Abstract: A COS treatment apparatus for a gasified gas includes an O2 removal catalyst and a COS conversion catalyst located on the downstream side of a gasified gas flow with respect to the O2 removal catalyst. Also, a COS treatment apparatus includes a TiO2 catalyst that carries Cr2O3 or NiO. Further, a COS treatment method includes a first step in which O2 is removed by the reaction with H2S and CO, and a second step in which COS is converted to H2S.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: July 6, 2010
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Masahiro Harada, Shintaro Honjo, Makoto Susaki, Kazuo Ishida, Hajime Nagano, Susumu Okino, Kozo Iida, Akira Johana
  • Apparatus for treatment cos for gas produced by gasification and method for treating cos
    Publication number: 20060051263
    Abstract: There is disclosed a COS treatment apparatus for a gasified gas, in which an O2 removal catalyst and a COS conversion catalyst located on the downstream side of a gasified gas flow with respect to the O2 removal catalyst are provided. Also, there is disclosed a COS treatment apparatus containing a TiO2 catalyst that carries Cr2O3 or NiO. Further, there is disclosed a COS treatment method including a first step in which O2 is removed by the reaction with H2S and CO, and a second step in which COS is converted to H2S.
    Type: Application
    Filed: August 6, 2003
    Publication date: March 9, 2006
    Inventors: Masahiro Harada, Shintaro Honjo, Makoto Susaki, Kazuo Ishida, Hajime Nagano, Susumu Okino, Kozo Iida, Akira Johana