脉冲电晕放电脱硫产物研究

模拟烟气的脉冲放电等离子体活化脱除ＳＯ２产物分析结果表明：在温度６０℃￣７０℃，氨硫化学计量比为１：１条件下，（ＮＨ４）２ＳＯ４含量占脉冲放电脱硫产物含量的８０％以上；５０％左右的产物吸附于反应器内，其余部分随着尾气排出；提高电压有利于正盐的生成；尾气与反应器中（ＮＨ４）２ＳＯ４比值也随之增大。测定了不同温度下（ＮＨ４）２ＳＯ的化学平衡常数，得出在氨硫化学计量比１：１，温度６０℃￣７０℃的脉冲烟气

Investigation about Formation of Products from Removal of SO2 from Simulated Gas Using Pulse Discharge*

The removal of SO2 from simulated gas is experimentally and theoretically investigated using pulse discharge.By tests on its products,the results show that under the experimental conditions(temperature 6070;chemically reactive ratio of NH3 to SO2:11),ammonium sulfate content of products is over 80%;fifty percent of products is deposited inside discharge chamber,and the rest runs out of discharge chamber, suspending among gases.The percentage of ammonium sulfate increases with the rising of voltage and quantitative ratio of ammonium sulfate deposited inside discharge chamber to that among the rest gases also increases.The conclusion that product of ammonium sulfite doesn't exit among the rest gases has been drawn by examining its thermochemical equilibrium.The following conclusions have been also drawn:The main reaction mechanism of plused corona discharge desulfurization from flue ges is that HSO-3,which is formed from reaction of NH3 and SO2,is oxidized through linereaction mechanism;the mechanism that SO2 is oxidized directly by radicals is not major.