电晕-介质阻挡协同放电低温等离子体降解大流量甲苯废气的研究  

Degradation of high-flow toluene waste gas by corona-dielectric barrier co-discharge low-temperature plasma

作　　者：唐爱民 王星敏 胥江河 王松 何茂松 TANG Aimin;WANG Xingmin;XU Jianghe;WANG Song;HE Maosong(College of Environment and Resources,Chongqing Technology and Business University,Chongqing 400067;Chongqing Key Lab of Catalysis and New Environmental Materials,Chongqing 400067)

机构地区：[1]重庆工商大学环境与资源学院,重庆400067 [2]催化与环境新材料重庆市重点实验室,重庆400067

出　　处：《环境污染与防治》2020年第3期339-343,共5页Environmental Pollution & Control

基　　金：重庆市社会事业与民生保障科技创新专项(No.cstc2018jscx-msybX0338);重庆市教委应用基础项目(No.KJ1400607)

摘　　要：利用自制电晕-介质阻挡协同放电低温等离子体降解大流量甲苯废气,运用均匀设计法优化获得甲苯降解的适宜条件,探究了各因素及因素间交互作用对甲苯降解的影响,并开展甲苯降解动力学分析。结果表明:降解甲苯的最佳条件为工作电压13 kV、放电频率6.5 kHz、废气流量为1.0 L/min,甲苯初始质量浓度924 mg/m^3,在此条件下甲苯气体降解率为94.93%,能量效率为0.63 g/(kW·h);甲苯降解符合一级反应动力学,甲苯降解反应速率常数与输入功率具有良好线性关系。The degradation of high-flow toluene waste gas was performed by self-made corona-dielectric barrier co-discharge low-temperature plasma.The uniform design method was adopted to optimize the suitable parameters for toluene degradation and explore the effect of different factors and their interaction on toluene degradation.The toluene degradation kinetic was also analyzed.The results showed that optimized operating conditions were working voltage 13 kV,discharge frequency 6.5 kHz,waste gas flow rate 1.0 L/min,initial toluene mass concentration 924 mg/m^3.Under these optimized operating conditions,the toluene degradation rate could reach 94.93%,and the energy efficiency was 0.63 g/(kW·h).It was found that the degradation process of toluene accorded with the first-order reaction kinetics,and the rate constant of toluene degradation had a good linear relationship with input power.

关 键 词：电晕-介质阻挡协同放电 低温等离子体 甲苯 降解 反应动力学 

分 类 号：X701[环境科学与工程—环境工程]