Process for the separation of C.sub.2+ or C.sub.3+ hydrocarbon

Details Process for the separation of C.sub.2+ or C.sub.3+ hydrocarbon Process for the separation of C.sub.2+ or C.sub.3+ hydrocarbon

1985-12-17

1987-06-23

Metz, Andrew H.

Refrigeration

Processes

Circulating external gas

62 31, 62 34, 62 39, F25J 302

Patent

active

046750363

ABSTRACT:
A low temperature rectification process for obtaining C.sub.2+ or C.sub.3+ hydrocarbons from feed gas mixtures, which contain essentially light hydrocarbons and, if desired, hydrogen or nitrogen is shown. The gas mixture is first cooled and subjected to phase separation, whereupon the gaseous fraction is work expanded and the liquid fraction is fractionated by rectification. The light overhead fractionated product of the rectification is mixed with the gaseous fraction of the phase separation of the feed gas mixture before its work expansion.

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patent: 4486209 (1984-12-01), Fabbri et al.
patent: 4519824 (1985-05-01), Huebel

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