Inventors:
Mark C. Anderson - Spring TX, US
Michael F. Rax - Spring Branch TX, US
Ronald Shafer - Overland Park KS, US
International Classification:
B01D 53/52
Abstract:
Processes for selectively removing sulfur-containing compounds from a gas are described herein. The processes generally include contacting a first gas including carbon dioxide and hydrogen sulfide with a scrub solution including ammonium bisulfite and ammonium sulfite in a first contact zone to produce a first contact zone effluent liquid including ammonium thiosulfate and a first contact zone overhead gas in which the concentration of hydrogen sulfide is substantially reduced.