Patents Assigned to NIPPON STEEL & SUMKIN ENGINEERING CO., LTD.
  • Patent number: 9499453
    Abstract: A catalyst filling apparatus is for a bubble column slurry bed reactor for the FT synthesis reaction. The apparatus includes: a slurry preparation tank installed adjacent to the reactor and configured to prepare a slurry S from a FT synthesis reaction catalyst and a slurry preparation oil; an upper part communication line configured to direct the slurry from the reactor to the slurry preparation tank; a lower part communication line configured to direct the slurry in the slurry preparation tank to the reactor; and a pressure equalizing line configured to communicate the reactor with the slurry preparation tank. The upper part communication line is downwardly inclined from the reactor toward the slurry preparation tank, and the lower part communication line is upwardly inclined from the reactor toward the slurry preparation tank. An inert gas introduction device is provided on the slurry preparation tank.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: November 22, 2016
    Assignees: Japan Oil, Gas and Metals National Corporation, INPEX CORPORATION, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., COSMO OIL CO., LTD., NIPPON STEEL & SUMKIN ENGINEERING CO., LTD.
    Inventor: Kazuhiko Tasaka
  • Patent number: 9321011
    Abstract: [Problem] To provide a membrane separation apparatus and a membrane separation method capable of reducing energy consumption, [Solution] A membrane separation apparatus (10) includes: a membrane separator (20) supplied with a fluid (X) containing a component (A) and a component (B) and separating the fluid (X) into a fluid (Y) having a higher concentration of the component (A) than the fluid (X) and a fluid (Z) having a lower concentration of the component (A) than the fluid (X) by using a separation membrane; a first compressor (21) adiabatically compressing the fluid (Y); a first heat exchanger (11) to which the fluid (Y) adiabatically compressed by the first compressor (21) is introduced as a heat source; and a second heat exchanger (12) to which the fluid (Z) is introduced as a heat source.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: April 26, 2016
    Assignees: NIPPON STEEL & SUMKIN ENGINEERING CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Takafumi Kiuchi, Ryohta Hidaka, Yoichi Ishibashi, Yasuki Kansha, Atsushi Tsutsumi