Patents by Inventor Susumu Hyodo

Susumu Hyodo 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 cleaning flue gas
    Patent number: 4267155
    Abstract: A flue gas containing SO.sub.x, NO.sub.x and O.sub.2 is washed with an alkaline aqueous solution containing a NO.sub.x removal catalyst to form the salts of a dithionate, a sulfate and an imidobissulfate. The salts are crystallized, separated and heated for pyrolysis by a pneumatic conveying pyrolysis unit whereby a gas containing higher concentration of SO.sub.2 is obtained. The gas is fed into the alkaline aqueous solution together with the flue gas so as to improve the efficiency.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: May 12, 1981
    Assignee: Mitsubishi Kakoki Kaisha Ltd.
    Inventors: Yoshio Kobayashi, Koichi Ando, Susumu Hyodo