초록 ▼

The quantity of NOx emissions generated by a combined gas turbine-steam boiler power plant is controlled by recycling a controlled amount of the steam boiler exhaust gas to the air compressor of the gas turbine such that the recycled gases constitutes up to about 30% of the fluid flowing through the

The quantity of NOx emissions generated by a combined gas turbine-steam boiler power plant is controlled by recycling a controlled amount of the steam boiler exhaust gas to the air compressor of the gas turbine such that the recycled gases constitutes up to about 30% of the fluid flowing through the air compressor and by cooling the recycled steam boiler exhaust gases to about the desired gas turbine compressor inlet temperature prior to its introduction into the air compressor.

대표청구항 ▼

A method of operating a combined gas-steam power plant with improved control of NOx emissions comprising compressing air in an air compressor, introducing said compressed air and fuel into a combustor and burning the resulting mixture therein, employing the combustor exhaust gases to operate a gas t

A method of operating a combined gas-steam power plant with improved control of NOx emissions comprising compressing air in an air compressor, introducing said compressed air and fuel into a combustor and burning the resulting mixture therein, employing the combustor exhaust gases to operate a gas turbine, employing the gas turbine exhaust gases to operate a steam boiler, venting a portion of the steam boiler exhaust gases, cooling the remaining portion of the steam boiler exhaust gases to about the desired air compressor inlet temperature, introducing said cooled steam boiler exhaust gases into said air compressor, and controlling the relative rate of venting and introduction to said air compressor such that said cooled steam boiler exhaust gases comprise up to about 30% of the fluid flowing through said air compressor.