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Patent Searching and Data


Title:
PROCESS FOR PRODUCING LIQUEFIED HYDROGEN
Document Type and Number:
WIPO Patent Application WO/2022/106801
Kind Code:
A3
Abstract:
A process for liquefying hydrogen gas comprising: cooling the hydrogen gas to an intermediate temperature by heat exchange with a refrigerant circulating in a refrigeration loop provided with a higher temperature expander and a lower temperature expander, the outlet stream from the lower temperature expander containing some condensed refrigerant; a means is provided of separating the condensate from the circulating refrigerant; further cooling the hydrogen gas by heat exchange with evaporation and reheating of the said condensate. The fluid in the said refrigeration loop is typically methane (such as natural gas after removal of carbon dioxide, water vapour and other impurities), or nitrogen, or a mixture thereof.

Inventors:
SKINNER, Geoffrey Frederick (GB)
Application Number:
PCT/GB2021/000117
Publication Date:
August 04, 2022
Filing Date:
October 13, 2021
Export Citation:
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Assignee:
GASCONSULT LIMITED (GB)
International Classes:
F25J1/00
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