C - Chemistry – Metallurgy – 10 – K
Patent
C - Chemistry, Metallurgy
10
K
23/341, 48/46
C10K 1/14 (2006.01) B01D 53/14 (2006.01) C07C 7/11 (2006.01)
Patent
CA 1113723
ABSTRACT OF THE DISCLOSURE A process for the removal of acidic gages from a gas- eous mixture containing the game by contacting the said gaseous mixture countercurrently in a contacting zone at a temperature in the range of 15 to 135°C and at a pressure of from 1 to 100 kg/cm2 abs., with an aqueous absorbent comprising an amine with a pkb of 3-14 at 25°C in an amount of 10 to 70% by weight and sulfolane and/or its derivatives in an amount of 25 to 70% by weight, which aqueous absorbent is introduced at the top of the contacting zone, and a fat aqueous absorbent is finally with- drawn from the contacting zone at the bottom thereof for regen- eration by means of heating and/or stripping, in which process at an intermediate point at the lower part of the said contact- ing zone the said aqueous absorbent is withdrawn from said contacting zone as a semi-fat absorbent and is reintroduced into the said lower part of said contacting zone after having been cooled externally, for further contacting with the said aqueous mixture.
297301
Verloop Jan
Werner Erik S.e.
Shell Canada Limited
Smart & Biggar
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