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利用手烧炉燃煤所产生的烟气和高压脉冲电源,研究脉冲电晕放电对真实烟气中NO和SO2的脱除规律,结果表明:随着脉冲电压和脉冲重复频率的增大,电晕对NO和SO2的氧化脱除量增大,但随烟气流速的增大(即处理时间缩短)而变小;负脉冲电晕对NO和SO2的氧化脱除量比正脉冲电晕的低;当氨浓度为SO2浓度的4~5倍时,氨本身对SO2的脱除效率可达到88%,但氨本身对NO没有脱除作用;在氨本身对NO和SO2脱除的情况下,脉冲电晕放电促使了NO脱除,但若氨不过量(能完全被SO2吸收),则放电对SO2没有进一步的脱除作用。
The flue gas and high-voltage pulsed power generated by burning coal in hand furnace were used to study the removal rule of NO and SO2 in real flue gas by pulse corona discharge. The results show that with the increase of pulse voltage and pulse repetition frequency, Halo on NO and SO2 oxidation removal increased, but with the flue gas flow rate increases (ie, processing time shortened) and smaller; negative pulse corona of NO and SO2 oxidation removal than the positive pulse corona When the concentration of ammonia is 4 ~ 5 times of that of SO2, the removal efficiency of ammonia itself can reach 88%, but ammonia itself has no removal effect on NO; when ammonia itself removes NO and SO2 , Pulsed corona discharge to promote NO removal, but if not excessive ammonia (SO2 can be completely absorbed), the discharge of SO2 no further removal.