Reduction of NOx/SO2 by Wire-plate Type Pulsed Discharge Reactor with Pulsed Corona Radical Shower

Pulsed discharge deNOx/deSO2 process has been studied for over 20 years, but how to achieve higher removal rate at lower cost remains one of the crucial issues for realization of its industrial application. This paper presents a novel deNOx/deSO2 process that combines a wire-plate type pulsed discharge reactor and a corona radical shower. Our aim is to increase the deNOx/deSO2 rate of wire-plate type reactor by enhancing the generation of radicals with pulsed corona radical shower. Effect of a nozzle electrode on the production of OH radical was studied by emissive spectrum, and deNOx/deSO2 experiments using a wire-plate reactor with pulsed corona radical shower were conducted. The experimental results demonstrated that corona radical shower could enhance the production of radicals and the deNOx/SO2 performance of a wire-plate reactor. This study will play a positive role in the industrial application of wire-plate pulsed discharge deNOx/deSO2 reactor.