Method of liquefying a natural gas with two interconnected stage

Details Method of liquefying a natural gas with two interconnected stage Method of liquefying a natural gas with two interconnected stage

1998-06-22

2000-03-28

Doerrler, William

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

62 60, F25J 100

Patent

active

06041619&

ABSTRACT:
Method of liquefying a natural gas wherein a first coolant mixture M.sub.1 is used for the first cooling stage and a second coolant mixture M.sub.2 for the second cooling stage, said mixture M.sub.2 being cooled in the first cooling stage by means of the first coolant mixture (by vaporization after expansion) in order to obtain a condensed, single-phase mixture M.sub.2 at the outlet and in that mixture M.sub.2 is vaporized to cool the second cooling stage at least partially.

REFERENCES:
patent: 3747359 (1973-07-01), Streich
patent: 4411677 (1983-10-01), Pervier et al.
patent: 4501600 (1985-02-01), Pahade
patent: 4592767 (1986-06-01), Pahade et al.
patent: 4662919 (1987-05-01), Davis
patent: 5651269 (1997-07-01), Prevost et al.
patent: 5826444 (1998-10-01), Capron et al.

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