Patent ID: 8328911
Filing Date: 2012-12-11
Classification: B01D,F23J,Y02C,Y02E

Abstract:
1. A method of removing and capturing carbon dioxide from a fluid stream, comprising: exposing the fluid stream to an aqueous scrubbing solution that removes and holds carbon dioxide from the fluid stream; using an aqueous solution of between about 7 and about 15 weight percent ammonia as said scrubbing solution; providing a transition metal catalyst capable of forming a metal ammonia complex in said scrubbing solution; passing said aqueous scrubbing solution through a membrane in order to separate excess water from said scrubbing solution and increase concentration of carbon dioxide in said scrubbing solution; heating said scrubbing solution having increased concentration of carbon dioxide so as to release carbon dioxide gas; wherein said scrubbing solution exposed to said fluid stream is a lean solution including about 0.077 kg of carbon dioxide/kg solvent and said scrubbing solution having an increased concentration of carbon dioxide is a rich solution including about 0.177 kg of carbon dioxide/kg solvent; and recycling said scrubbing solution.