ELECTRIC-DISCHARGE REMOVAL OF SO2 AND NOX FROM COMBUSTION FLUE-GAS BYPULSED CORONA DISCHARGE

Based upon the reported studies on removal of SO2 and NOx from combust ion flue gas by pulsed corona discharge, experimental studies on simul ated combustion gas have been conducted changing parameters such as pu lse width, polarity, wire electrode diameter, discharge gap, gas compo sition, gas temperature, etc. that are believed to be fundamental in t he deSO(x) and deNO(x) process. Corona wind, which is expected to prom ote mixing of oxidizing radicals with SO2 and NOx in pulsed corona dis charge, has been tried to be visualized. Future works concerning about measurements of oxidizing radical OH concentration and about simulati on of electric discharge chemical process, which are now in progress, have been put in order to explain more details of deSO(x) and deNO(x) processes. (C) 1997 Elsevier Science Ltd.