Method of separating acid gases, particularly carbon dioxide, fr

Details Method of separating acid gases, particularly carbon dioxide, fr Method of separating acid gases, particularly carbon dioxide, fr

1983-09-15

1985-04-16

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 28, F25J 302

Patent

active

045113823

ABSTRACT:
A method of separating acid gases, particularly carbon dioxide, from methane by cryogenic distillation. The method includes the step of adding helium to the stream to be separated to increase the critical pressure of the methane-carbon dioxide present. The cryogenic distillation tower may then be operated at a higher pressure and without the formation of solid carbon dioxide.

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