Process for manufacturing liquefied methane

Details Process for manufacturing liquefied methane Process for manufacturing liquefied methane

1976-04-02

1977-12-27

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 27, 62 40, 62 38, F25J 302

Patent

active

040652785

ABSTRACT:
A process for producing liquefied natural gas from a high pressure hydrocarbon feedstock is shown. In this process, the feedstock is isentropically expanded and distilled at a pressure lower than the critical pressure to form an overhead rich in methane and a bottom fraction. The methane rich overhead is compressed utilizing the energy obtained from the expansion and then the compressed overhead is liquefied in a refrigeration cycle.

REFERENCES:
patent: 3292380 (1966-12-01), Bucklin
patent: 3397138 (1968-08-01), Bacon
patent: 3433026 (1969-03-01), Swearingen
patent: 3593535 (1971-07-01), Gaumer et al.
patent: 3763658 (1973-10-01), Gaumer et al.

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