高频介质阻挡放电烟气脱硫研究  

Study of the Desulfurization by High Frequency Dielectric Barrier Discharge

作　　者：赵之骏[1] 吴玉萍[1] 张仁熙[1] 侯惠奇[1] 

机构地区：[1]复旦大学环境科学研究所,上海200433

出　　处：《化学学报》2004年第23期2308-2312,共5页Acta Chimica Sinica

摘　　要：采用高频介质阻挡放电的方式产生低温等离子体 ,研究在不加入NH3 的情况下流动态SO2 的去除情况 .实验表明 ,在输入电压为 12kV ,SO2 浓度为 5 40 0mg/m3 ,气体流量为 0 3 6m3 /h ,相对湿度为 5 5 %时 ,脱硫率可达到 70 %以上 ;水气的存在对SO2 的去除有较大的促进作用 ,升高电压和增加O2 量对脱硫率的促进作用有限 .对实验结果进行了解释 。The removal of flowing SO2 was studied in the absence of NH3 by cold plasma generated by high frequency dielectric barrier discharge. The results showed that the decomposition rate was over 70% at the experimental conditions of 12 kV input voltage and 55% relative humidity with the SO2 concentration of 5400 mg/m(3) and the gas flux of 0.36 m(3)/h. The added H2O(g) played an important role in the SO2 removal, and in addition, the increasing O-2 and input voltage exerted a little influence on the decomposition rate of SO2. The desulfurization mechanism was also discussed under the analysis of experimental results.

关 键 词：SO2浓度 烟气脱硫 脱硫率 去除 介质阻挡放电 低温等离子体 NH3 MG/M^3 升高 促进作用 

分 类 号：X701.3[环境科学与工程—环境工程]