Title:
HYDROGEN GAS LIQUEFACTION METHOD AND HYDROGEN GAS LIQUEFACTION PLANT
Document Type and Number:
WIPO Patent Application WO/2011/142115
Kind Code:
A1
Abstract:
A hydrogen gas liquefaction method and a hydrogen gas liquefaction plant are provided in which the cold energy possessed by liquefied hydrogen can be recovered and effectively utilized as energy required for liquefaction of hydrogen gas.
The hydrogen gas liquefaction method is characterized by comprising: a hydrogen liquefaction step in which in a hydrogen production place, hydrogen gas is heat-exchanged with liquefied nitrogen to thereby cool the hydrogen gas and produce liquefied hydrogen; a first transportation step in which the liquefied hydrogen is transported to a hydrogen consumption region; a hydrogen vaporization step in which in the hydrogen consumption region, the liquefied hydrogen is heat-exchanged with nitrogen gas to thereby generate hydrogen gas from the liquefied hydrogen; and a second transportation step in which the liquefied nitrogen obtained in the hydrogen vaporization step is transported to the hydrogen production place. The method hence is characterized in that cold is circulated between the hydrogen vaporization step and the hydrogen liquefaction step and utilized therein.
Inventors:
YAMASHITA, Seiji (())
山下 誠二 (())
KAMIYA, Shoji (())
山下 誠二 (())
KAMIYA, Shoji (())
Application Number:
JP2011/002576
Publication Date:
November 17, 2011
Filing Date:
May 09, 2011
Export Citation:
Assignee:
KAWASAKI JUKOGYO KABUSHIKI KAISHA (1-1 Higashikawasaki-cho 3-chome, Chuo-ku Kobe-sh, Hyogo 70, 〒6508670, JP)
川崎重工業株式会社 (〒70 兵庫県神戸市中央区東川崎町３丁目１番１号 Hyogo, 〒6508670, JP)
YAMASHITA, Seiji (())
山下 誠二 (())
川崎重工業株式会社 (〒70 兵庫県神戸市中央区東川崎町３丁目１番１号 Hyogo, 〒6508670, JP)
YAMASHITA, Seiji (())
山下 誠二 (())
International Classes:
F17C13/00; F17C9/04; F25J1/00
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (3rd Fl, Bo-eki Bldg. 123-1, Higashimachi, Chuo-ku, Kobe-sh, Hyogo 31, 〒6500031, JP)
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Claims: