Teritiary alkanolamine absorbent containing an ethyleneamine...

Details Teritiary alkanolamine absorbent containing an ethyleneamine... Teritiary alkanolamine absorbent containing an ethyleneamine...

B - Operations, Transporting

01

J

252/30

B01J 20/22 (2006.01) B01D 53/62 (2006.01)

Patent

CA 1340768

Absorption of carbon dioxide from gas mixtures with aqueous absorbent solutions of tertiary alkanolamines is improved by incorporating at least one alkyleneamine in the solution. The presence of the alkyleneamine promotes the rate of carbon dioxide absorption and the carbon dioxide capacity of the aqueous tertiary alkanolamine solution. As a result, absorption can be carried out in shorter absorber columns, and process energy requirements can be lowered by reducing the rate at which the absorbent solution is circulated.

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