Patent ID: 6266953
Filing Date: 2001-07-31
Classification: F01D,F02C,F22B,Y02E

Abstract:
A method of operating a gas and steam turbine plant, which comprises:providing a gas turbine and a steam turbine;operating the gas turbine with a fuel to produce an expanded working medium;generating steam for the steam turbine from heat contained in the expanded working medium leaving the gas turbine;introducing a reducing agent and a supply of an adjustable quantity of carrier air into the working medium with a metering system, for catalytically cleaning the working medium;adjusting the quantity of carrier air as a function of a type of the fuel supplied to the gas turbine;controlling the quantity of carrier air with only a first air compressor for gas fuel operation of the gas turbine; andcontrolling the quantity of carrier air additionally with a second air compressor, connected in parallel with the first air compressor, for oil fuel operation of the gas turbine.