OXYFUEL TURBINE SYSTEM AND METHOD FOR OXIDANT CONTROL

Abstract: the gas turbine system comprises a combustor adapted to combust a fuel and an oxidant and generate pressurized hot combustion gas and a turbine fluidly coupled to the combustor and rotated by expansion of the pressurized hot combustion gas from the combustor. a heat exchanger is fluidly coupled to the turbine and adapted to cool expanded combustion gas exhausted from the turbine. a main oxidant supply line is adapted to supply oxidant to the combustor through the heat exchanger. the oxidant streaming through the heat exchanger is in heat exchange relationship with combustion gas exhausted from the turbine. a fuel supply line supplies fuel to the combustor. a secondary oxidant supply line is adapted to supply oxidant in the fuel supply line upstream of a fuel control valve. also disclosed is a method of operating the system.

Inventor(s): Alessio MILIANI, Alessandro ZUCCA, Lorenzo COSI, Francesco GAMBERI

CPC Classification: F02C9/20 (GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines ; jet-propulsion plants ; construction of compressors or fans ; generating combustion products of high pressure or high velocity ; using gas turbines in compression refrigeration plants ))

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