Cryogenic expander recovery process

Details Cryogenic expander recovery process Cryogenic expander recovery process

1979-11-23

1981-06-09

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 38, 62 28, 55 57, F25J 302

Patent

active

042722691

ABSTRACT:
A process is described for the separation and recovery of C.sub.3 and heavier hydrocarbons from a gaseous hydrocarbon containing feed stream such as natural gas or refinery gas in which the gaseous feed stream is cryogenically expanded and the expanded gas is brought into contact with an absorption medium. The C.sub.3 and heavier components are liquefied and subsequently subjected to distillation and recovered as liquid product.

REFERENCES:
patent: 4012212 (1977-03-01), Kniel
patent: 4061481 (1977-12-01), Campbell et al.
patent: 4065278 (1977-12-01), Newton

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