Patent ID: 8512661

Claim:
A method of eliminating carbon emissions by integrating a carbonation-calcination process in a conventional coal fired power plant, comprising: drawing a flue gas into a first particle collection device, said first particle capture device removing a portion of ash from said cooled flue gas creating a separated flue gas; directing said separated flue gas into a carbonator; removing CO 2 and SO 2 from said separated flue gas; separating a gas-solid mixture from said carbonator in a second particle capture device to form a lean-CO 2 flue gas and a solid stream; preheating air for combustion using said lean-CO 2 flue gas; mixing said solid stream with a fresh sorbent to create a sorbent mixture; calcining said sorbent mixture forming a calcined sorbent mixture; directing said calcined sorbent mixture to a third particle capture device to form a concentrated CO 2 stream and a sorbent stream, said sorbent stream is directed to a hydrator and said concentrated CO 2 stream is directed to a heat-exchanger; drawing steam from a turbine into said heat exchanger; preheating said steam in said heat exchanger to form preheated steam; directing said preheated steam to said hydrator; hydrating said sorbent stream in said hydrator to form hydrated solids; and directing said hydrated solids to said carbonator to interact with said separated flue gas.