Method for separating carbon dioxide from methane

Details Method for separating carbon dioxide from methane Method for separating carbon dioxide from methane

1977-02-04

1979-05-01

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 28, 62 40, F25J 302

Patent

active

041521293

ABSTRACT:
A method is disclosed whereby carbon dioxide and methane in a gaseous mixture can be separated with little energy consumption when the gaseous mixture contains large amounts of carbon dioxide, i.e., from about 30 to about 90 mol percent. The method involves the fractionation of the gas mixture at a pressure below the critical pressure of the mixture and at a temperature above the triple point temperature of the mixture.

REFERENCES:
patent: 2503265 (1950-04-01), Haynes
patent: 2888807 (1959-06-01), Bocquet
patent: 3290890 (1966-12-01), Bray et al.
patent: 3292382 (1966-12-01), Bray et al.
patent: 3376709 (1968-04-01), Dickey et al.
patent: 3595782 (1971-07-01), Bucklin et al.
patent: 3983711 (1976-10-01), Solomon

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