Method of removing acid gases contained in gaseous effluents

Details Method of removing acid gases contained in gaseous effluents Method of removing acid gases contained in gaseous effluents

2011-03-22

2011-03-22

Smith, Duane (Department: 1776)

Gas separation: processes

Liquid contacting

And degasification of a liquid

C095S181000, C095S183000, C095S235000, C095S236000, C423S228000

Reexamination Certificate

active

07909914

ABSTRACT:
The present invention relates to a method of removing acid gases, notably carbonyl sulfide, contained in gaseous effluents, comprising:an acid gas absorption stage by contacting the gaseous effluent with an aqueous solution comprising 2-[2-amino-1-(aminomethyl)ethoxy]ethanol, and possibly another alkanolamine and an organic compound, andat least one aqueous solution regeneration stage.The method can comprise a second aqueous solution regeneration stage. The regeneration stages are carried out by expansion and/or thermal regeneration.

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French Search Report FR 0705113, Mar. 6, 2008.

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