脉冲电晕结合Ca(OH)2吸收法脱硫脱硝

Removal of SO2 and NOx by pulsed corona combined with in situ alkali absorption was experimentally investigated.In the reactor,a plate-wire-plate combination is devised for generating pulsed corona and then alkaline absorbent slurries were introduced into the reactor by a continuous band conveying system to capture the gaseous reaction products.It was found that both SO2 and NO could be removed by corona combined with in situ alkali absorption.The removal of SO2 increased to 75%with the corona discharge,compared with 60%removal only with Ca(OH)2 absorption.About 40%removal of NO was reached by pulsed corona combined with in situ Ca(OH)2 absorption.It was found that SO2 and NO in the gas stream are oxidized to SO3 and NO2 by pulsed corona respectively,and then absorbed by the alkali in the reactor.The removals of SO2 as well as NO were higher with Ca(OH)2 as the absorbent,compared with using CaCO3 or ZnO.     

脉冲电晕处理三乙胺的实验研究

采用线-筒式电晕反应器,对三乙胺废气的去除效果进行研究.实验考察峰值电压、载气成分和水分等因素对去除率的影响.结果表明:加大峰值电压,增加氧气的体积分数有利于三乙胺的分解.当通气量在300 mL/min,三乙胺的质量浓度约为0.05 mg/L,氧气体积分数为25％,处理效率可达到65％以上.通过产物的分析,发现最终分解主要产物为CO,CO2,H2O和NO2.