Title:
HYDROGEN RE-LIQUEFACTION SYSTEM
Document Type and Number:
Japanese Patent JP2023077109
Kind Code:
A
Abstract:
To provide a hydrogen re-liquefaction system capable of re-liquefying boil-off gas with higher efficiency.SOLUTION: A hydrogen re-liquefaction system re-liquefies boil-off gas generated in a liquefied hydrogen tank, and returns the same to the liquefied hydrogen tank. The hydrogen re-liquefaction system comprises: a dispensation passage in which hydrogen to be dispensed from the liquefied hydrogen tank to a supply destination flows; a re-liquefaction passage in which the boil-off gas flows; and a re-liquefaction apparatus that condenses the boil-off gas by cooling the boil-off gas flowing in the re-liquefaction passage. The re-liquefaction apparatus includes a condensation part provided in the re-liquefaction passage, and a heat dissipation part provided in the dispensation passage, and serves as a magnetic refrigerator that cools the boil-off gas via the condensation part by demagnetization and discharges heat at the time of magnetization to hydrogen via the heat dissipation part.SELECTED DRAWING: Figure 1
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Inventors:
KARIYA DAISUKE
HARADA EIICHI
NISHIMURA MOTOHIKO
MORIMOTO KATSUYA
HARADA EIICHI
NISHIMURA MOTOHIKO
MORIMOTO KATSUYA
Application Number:
JP2021190263A
Publication Date:
June 05, 2023
Filing Date:
November 24, 2021
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
F17C13/00
Attorney, Agent or Firm:
Shoji Ishida