Patent ID: 8920544

Claim:
A method for absorbing sour gases from a fluid stream comprising: providing an absorbent aqueous solution with an amine component, the amine component consisting essentially of, a first amine component selected from the group consisting of piperazine, 1,3-diaminopropane, and mixtures thereof, the first amine component being 70-85 wt. % of the total amine content of the aqueous solution, and a second amine component consisting of one or more sterically hindered amines in an amount of from 15-30 wt. % of the total amine content of the aqueous solution, and bringing the fluid stream into contact with the absorbent at a partial pressure of the sour gases of <200 mbar in the fluid stream, absorbing the sour gases and producing an absorbent laden with sour gases.