Abstract: A coaxial nonthermal近林 plasma (NTP) reactor was used for 冷火oxidizing and removing NO看請 in mist. The effect一術s of gas/mist components o動冷n O3 formation, NO oxidation, and NOx removal by NTP in城男 simulated flue gas after w熱上et desulfurization were investig高河ated. The presence of mist results快答 in the significant decrease o見匠f O3 concentration. Formation of 通器active species, such as OH a睡鄉nd HO2, would promote the reactions be購藍tween NO and OH/HO2. Thus, the NO oxidation, NOx removal, and energy efficie低微ncy are significantly 紙外improved in the presen師筆ce of mist. The promotion effects of 路大mist component on the NO oxidation a銀空nd NOx removal follow th學民e order: Na2SO3 mist > FeSO4 mist > Na2SO4 mist. Increase of the mist pH c從很an enhance the absorption物姐 of nitrogen oxides with the門近 mist. Adding SO2 to the gas mixtures or raising t年民he NO2/NOx ratio of simul又從ated gas increases the NOx removal efficiency. Thi草謝s process demonstrates that NO ox熱人idation by NTP and subsequently absorp紅師tion by mist are feasible and have 草自great value to practical applica信綠tion.
