Patent ID: 8282715
Filing Date: 2012-10-09
Classification: B01D,C01B,F25J,Y02A,Y02C,Y02P

Abstract:
1. Apparatus useful for treating gaseous carbon dioxide that contains SOx and NOx, comprising (A) an activated carbon reactor system adapted to receive a gaseous feed stream of carbon dioxide such as flue gas that also comprises NOx and sulfur dioxide and that is at a pressure of at least 1.5 bar, and the activated carbon reactor system comprising at least one bed of activated carbon for adsorbing SO (B) a subambient-temperature recovery system coupled to said activated carbon reactor system to receive therefrom SO (C) a carbon dioxide separation system coupled to said subambient-temperature recovery system to receive therefrom a gaseous carbon dioxide-containing vent stream and to separate said vent stream into a carbon dioxide-rich stream and a carbon dioxide-depleted stream by pressure swing adsorption or by physical or chemical absorption; and wherein said carbon dioxide separation system is coupled to said feed stream to recycle said carbon dioxide-rich stream to feed stream.