Patents Assigned to Chiyooa Chemical Engineering and Construction Co., Ltd.
  • Reactor for the thermal cracking of heavy oil
    Patent number: 4243633
    Abstract: A closed reactor for the thermal cracking of heavy oils, having an internally mounted, rotatable injection pipe. The injection pipe is adapted to spurt preheated raw material under pressure against the inner wall surfaces of the reactor while rotating to remove coke which has deposited on the reactor walls during the previous cracking operation.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: January 6, 1981
    Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Chiyooa Chemical Engineering and Construction Co., Ltd.
    Inventors: Hiroshi Hozuma, Hisatoshi Ohwada, Masaharu Tomizawa, Seiki Sanada, Hideo Kikuchi