Patent ID: 8765083

Claim:
A process for reducing acidic contaminants in an industrial fluid stream, the process comprising: (a) contacting the fluid stream with a composition to form a washed fluid stream and a rich acid gas scrubbing liquid, wherein the composition comprises: at least one absorbent component having a general formula: or a carbonate, bicarbonate, carbamate, urea, or amide thereof, or a salt thereof, wherein (i) R 1 is selected from the group consisting of: H, alkyl, aminoalkyl, and the following structure (II), (ii) each R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are independently H, alkyl, or aminoalkyl (iii) each R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , and R 17 are independently H, alkyl, or aminoalkyl; wherein at least one of R 10 or R 11 is not H; wherein if R 1 is H at least one of R 10 , R 11 , R 12 , R 13 is not H, and if R 1 is the structure (II) at least one of R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , or R 17 is not H, (iv) each m and n are independently 0, 1, or 2, (v) p and q are independently 0, 1, 2, 3, or 4, (vi) each o is independently 1 or 2; and a solvent; and (b) regenerating at least a portion of the composition including at least a portion of the absorbent component from the rich acid gas scrubbing liquid.