Process for separating gaseous mixtures using a...

Details Process for separating gaseous mixtures using a... Process for separating gaseous mixtures using a...

B - Operations, Transporting

01

D

183/1

B01D 53/22 (2006.01) B01D 71/52 (2006.01)

Patent

CA 1197196

ABSTRACT OF THE DISCLOSURE The process for separating a gaseous mixture containing at least one of carbon dioxide, oxygen and hydrogen sulfide into a fraction being enriched in at least one of these and a fraction being correspondingly depleted in at least one of these, the process comprising contacting the gaseous mixture with a semipermeable membrane, is improved by using a membrane constructed from at least one ring-substituted poly(arylene oxide) polymer. For example, carbon dioxide is efficiently separated from a gaseous mixture of carbon dioxide and methane, such as natural gas, by contacting it with a membrane constructed from a ring-brominated poly(2,6-dimethyl-p- phenylene oxide) polymer.

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