302 Pilot-Scale NOx Removal from Boiler Emission Using Indirect Plasma and Chemical Hybrid Process

Abstract

The pilot-scale NOx removal from boiler emission was performed using our proposed indirect plasma and a chemical hybrid process. The flue gas flow rate was in the range of 450〜1,470m^3_N/hr, the gas temperature of 280℃, and NOx concentration of 30ppm for gas firing and 70ppm for oil firing, respectively. The NO_2 oxidized by the indirect plasma was further reduced by a Na_2SO_3 solution chemical scrubber to N_2. The NOx removal efficiency for gas firing exceeded 90%. It was known that the quality of wastewater was proved to be disposable.