Cryogenic gas plant

Details Cryogenic gas plant Cryogenic gas plant

1983-07-07

1985-01-29

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 31, 62 34, 62 42, F25J 302

Patent

active

044963807

ABSTRACT:
A process for separating substantially all of the C.sub.3 and heavier components and a major portion of the C.sub.2 component from a natural gas stream using a cryogenic process. The process uses a rectifying column in combination with a fractionating column to separate the C.sub.2 and heavier components with the reflux for the rectifying column being supplied by compressing a small portion of the overheads and condensing it via heat exchange with the overheads stream.

REFERENCES:
patent: 2471602 (1949-05-01), Arnold
patent: 2880592 (1959-04-01), Davison et al.
patent: 3292380 (1966-12-01), Bucklin
patent: 3675435 (1972-07-01), Jackson et al.
"Evolution in Design", by R. L. McKee, presented at 56th Annual GPA Convention, Dallas, Texas, Mar. 21-23, 1977.
"Flexibility Can Boost Profits in Cyogenic Gas-Processing Plants", article by Larry E. Evans, Randall Corp., Houston, Texas, published in Oil & Gas Journal, Jul. 14, 1980.

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