Method of and plant for reliquefying gaseous helium

Details Method of and plant for reliquefying gaseous helium Method of and plant for reliquefying gaseous helium

1997-07-21

1998-11-03

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

62 482, F25B 100

Patent

active

058292691

ABSTRACT:
Method of reliquefying gaseous helium produced when transferring liquid helium from a donor container (R1) to a receiver container (R2), characterized in that a stream of gaseous helium is bled off from a point in a compression unit (10) intended for charging with gaseous helium under pressure, this stream of gaseous helium is cooled by heat exchange with the gaseous helium intended for the compression unit (10) and the compressed gaseous helium thus cooled is expanded in order to obtain reliquefied helium.

REFERENCES:
patent: 3150495 (1964-09-01), Reed
patent: 3303660 (1967-02-01), Berg
patent: 4637216 (1987-01-01), Shenoy et al.
patent: 4727723 (1988-03-01), Durr
patent: 4886534 (1989-12-01), Castan

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