Process for liquefying methane

Details Process for liquefying methane Process for liquefying methane

F - Mech Eng,Light,Heat,Weapons

25

J

162/118

F25J 3/02 (2006.01) F25J 1/02 (2006.01)

Patent

CA 1200191

ABSTRACT A process for liquefying natural gas in which heavier hydrocarbons are separated in a scrub column from the natural gas prior to liquefaction. The feed to the scrub column is intercooled against the methane- rich overhead from said column and isentropically expanded before being introduced to the column and separated from the heavier hydrocarbons. The methane- rich overhead stream is compressed utilizing the mechanical energy of expansion and liquefied in a refrigerated heat exchanger.

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