Distillative separation of methane and carbon dioxide

Details Distillative separation of methane and carbon dioxide Distillative separation of methane and carbon dioxide

1983-05-12

1984-05-29

Sever, Frank

Refrigeration

Processes

Circulating external gas

55 68, 55 73, 62 20, 62 28, B25J 302

Patent

active

044512740

ABSTRACT:
An improvement in a Ryan/Holmes separation of methane from carbon dioxide is disclosed wherein the upper portion of a distillation column is operated, i.e., -70.degree. F., while still effectuating a separation of methane from carbon dioxide. This is achieved by increasing the amount of nonpolar liquid agent added to the condenser of the column to an amount sufficient to maintain the condenser and all portions of the column above such temperatures.

REFERENCES:
patent: 3683634 (1972-08-01), Streich
patent: 4149864 (1979-04-01), Eakman et al.
patent: 4284423 (1981-08-01), Eakman et al.
patent: 4318723 (1982-03-01), Holmes et al.
patent: 4370156 (1983-01-01), Goddin et al.

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