Patent ID: 8631639

Claim:
A turbine power generation system, comprising: a compressor configured to compress air; a combustor configured to combust a mixture of compressed air from said compressor with a fuel to produce an exhaust gas stream including carbon dioxide; a turbine configured to convert thermal energy of said exhaust stream into mechanical energy, the turbine having a hot gas path for the exhaust stream; a generator configured to convert mechanical energy produced by said turbine into electrical energy; at least one shaft linking the compressor, the turbine, and the generator to allow mechanical energy produced by the turbine be utilized by the generator and said compressor; a conduit configured to inject a stream of carbon dioxide into the hot gas path of the turbine from a reservoir configured to contain carbon dioxide sequestered from said exhaust stream so as to cool the turbine, the carbon dioxide source comprising carbon dioxide in a concentration of greater than about 75 percent by volume.