A system (10) for absorbing an acidic component from a process stream (22), the system including: a process stream (22) including an acidic component; an absorbent solution to absorb at least a portion of the acidic component from the process stream (22), wherein the absorbent solution includes an amine compound or ammonia; an absorber (20) including an internal portion (20a), wherein the absorbent solution contacts the process stream (22) in the internal portion of the absorber; and a catalyst (27) to absorb at least a portion of the acidic component from the process stream (22), wherein the catalyst is present in at least one of: a section of the internal portion (20a) of the absorber (20), the absorbent solution, or a combination thereof.