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

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F25J 3/00 (2006.01) B01D 53/14 (2006.01) C01B 3/52 (2006.01) C07C 7/11 (2006.01) F25J 3/02 (2006.01)

Patent

CA 1177381

CASE 1417 CRYOGENIC PROCESS FOR REMOVING ACIDIC CASES FROM CAS MIXTURES - A B S T R A C T 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 com- pounds 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.

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