Cryogenic process for removing acidic gases from gas mixtures

Details Cryogenic process for removing acidic gases from gas mixtures Cryogenic process for removing acidic gases from gas mixtures

1982-06-23

1985-04-30

Sever, Frank

Refrigeration

Processes

Circulating external gas

55 68, 55 73, F25J 300, F25J 302

Patent

active

045142033

ABSTRACT:
Low temperature treatments are combined with solvent treatments using particularly selective solvents for stripping acidic gases such as carbon dioxide and hydrogen sulphide from natural gas or from synthetic gases.
The preferred solvents are a wide range of compounds having an esteric or an etheric function in their molecule, but there are also examples of compounds which have the two functions simultaneously.
The stripping process is comparatively simple, is efficient, especially for high contents of acidic gases in the raw gas streams, and is economically acceptable.

REFERENCES:
patent: 1732371 (1929-10-01), Luther et al.
patent: 2045321 (1936-06-01), Clarke
patent: 4302220 (1981-11-01), Volkamer et al.

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