Patent ID: 7942008

Claim:
A method for reducing emissions in a power plant including a gas turbine engine assembly and a carbon dioxide (CO 2 ) separator, said method comprising: increasing an operating pressure of an exhaust stream discharged from the gas turbine engine assembly; reducing an operating temperature of the exhaust stream; substantially reducing a concentration of CO 2 entrained within the exhaust stream utilizing the CO 2 separator to produce a CO 2 lean exhaust stream; reducing the operating temperature of the CO 2 lean exhaust stream; and channeling the cooled CO 2 lean exhaust stream through a first flow path of a heat exchanger to reduce an operating temperature of a flow of ambient air channeled through a second flow path of the heat exchanger prior to entering the gas turbine engine assembly wherein the first and second flow paths are coupled in thermal communication and isolated in flow communication with respect to each other.