Acid Gas Removal Characteristics of Corona Radical Shower System for a Treatment of Stationary Engine Flue Gas

摘要

Acid gas removal experiments are carried out in large bench scale corona radical shower reactor. A simulated engine flue gas is air mixed with NO, SO2 and CH4. Optimums for acid gas removal rate have been conducted in terms of the ammonia to acid gas molar ratio, the applied voltage and the additional gas velocity. Both the removal efficiencies of NO and SO2 increase with increasing applied voltage and decreasing initial NO concentration. It is also shown that high concentrations of CH4 have a negative effect on NO removal, where part of the NO converted only to NO2 but not to ammonium nitrate aerosol particles.