Carbon dioxide removal from methane-containing gases

Details Carbon dioxide removal from methane-containing gases Carbon dioxide removal from methane-containing gases

1979-01-02

1981-02-24

Yudkoff, Norman

Refrigeration

Processes

Circulating external gas

62 23, 62 41, 55 68, 55 89, F25J 102

Patent

active

042525489

ABSTRACT:
Methane-containing gases with an appreciable content of carbon dioxide are scrubbed with cold methanol to remove the bulk of the carbon dioxide in a simple system comprising a single gas-liquid contact column and featuring regeneration of the methanol containing carbon dioxide solely by multiple-stage flashing. Land-fill gases containing methane and carbon dioxide as the principal components can be economically processed in such a system to yield methane-rich fuel gases.

REFERENCES:
patent: 3130026 (1964-04-01), Becker
patent: 3453835 (1969-07-01), Hochgesand
patent: 3640052 (1972-02-01), Konoki et al.
patent: 3977203 (1976-08-01), Hinton et al.

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