Patent ID: 8292989

Claim:
A CO 2 capture system for removing carbon dioxide from a flue gas stream, the CO 2 capture system comprising: an absorber vessel configured to introduce both a lean ionic ammonia solution from a regeneration system and the flue gas stream from a cooling system, wherein the lean ionic ammonia solution interacts with the flue gas stream to provide a rich ionic ammonia solution to the regeneration system, wherein the introduction of the lean ionic ammonia solution to the flue gas stream further produces a flue gas substantially devoid of CO 2 ; a water wash vessel configured to receive the flue gas substantially devoid of CO 2 and produce ammoniated water by introducing water to the flue gas substantially devoid of CO 2 ; and a stripper configured to receive the ammoniated water and configured to remove ammonia from the ammoniated water, the stripper being operable in at least partial vacuum conditions; the cooling system configured to cool and provide the flue gas stream to the CO 2 capture system and configured to receive a cleaned flue gas stream from the CO 2 capture system wherein the CO 2 capture system produces the cleaned flue gas stream.