초록 ▼

Combined cycle power plants are disclosed that utilize a stream of compressed flue gas and fuel that has been passed through a reformer (a thermochemical recuperator) to increase its thermal and chemical value and, along with the output of an air compressor, is fed into the gas turbine combustor. In

Combined cycle power plants are disclosed that utilize a stream of compressed flue gas and fuel that has been passed through a reformer (a thermochemical recuperator) to increase its thermal and chemical value and, along with the output of an air compressor, is fed into the gas turbine combustor. In preferred embodiments the thermochemical recuperation and flue gas recirculation are incorporated into combined cycle power plants that utilize either two gas turbines or reheat gas turbines.

대표청구항 ▼

A reformer having a first inlet connected to a gas turbine exhaust, a first outlet connected to a steam turbine cycle inlet, a second inlet connected to a flue gas compressor exhaust and a source of fuel, and a second outlet connected to a combustor of the gas turbine wherein the second outlet is mi

A reformer having a first inlet connected to a gas turbine exhaust, a first outlet connected to a steam turbine cycle inlet, a second inlet connected to a flue gas compressor exhaust and a source of fuel, and a second outlet connected to a combustor of the gas turbine wherein the second outlet is mixed with an air compressor exhaust prior to combustion. A method of increasing the efficiency of a combined cycle power plant comprising the steps of passing the exhaust of a gas turbine through a reformer before entering a steam turbine cycle; compressing at least a portion of the flue gas from the steam turbine cycle and mixing it with natural gas to form a mixed stream; passing the mixed stream through the reformer; and entering it with compressed air into a combustor of the gas turbine.