双极性高压脉冲DBD降解气态苯的实验研究

广东工业大学学报 ›› 2011, Vol. 28 ›› Issue (3): 51-53.

双极性高压脉冲DBD降解气态苯的实验研究

大连理工大学 1.静电与特种电源研究所，2.环境学院，3.工业生态与环境工程教育部重点实验室,辽宁大连 116024

出版日期:2010-10-06 发布日期:2010-10-06
作者简介:王文瑞（1985-），女，硕士研究生，主要研究方向为大气污染对策技术.
基金资助:
国家自然科学基金资助项目（50678031）；国家“863”计划资助项目（2009AA064101-4）

Decomposition of Gaseous Benzene by Bipolar Pulsed Highvoltage DBD

1. Institute of Electrostatic and Special Power, 2. School of Environmental Science and Technology,
3. Key Laboratory of Industrial Ecology and Environmental Engineering of Ministry of Education, Dalian University of Technology, Dalian 116024, China

Online:2010-10-06 Published:2010-10-06

摘要/Abstract

摘要： 为了研究挥发性有机化合物的降解特性，将气态苯引入线-筒式介质阻挡放电反应器，利用双极性脉冲高压进行降解考察了放电间隙、放电长度和Mn/γ Al2O3催化剂对苯降解的影响结果表明：在相同电压下，小放电间隙注入的能量较大，有利于苯的降解，放电间隙对苯的降解效果影响由大到小依次为3.5 mm、6 mm、8.5 mm；苯的降解率随着放电长度的增加而增大；加入Mn/γ Al2O3，进一步提高了苯的降解率，Mn质量分数增大到15%时，苯的降解率和碳氧化物选择性都有所提高，分别为91.8%和94.6%


关键词: 双极性脉冲高压；DBD放电；苯；催化

Abstract: To investigate the decomposition characteristics of volatile organic compounds (VOCs), gaseous benzene was introduced into the wirecylinder dielectric barrier discharge (DBD) reactor and degraded by bipolar pulsed high-voltage. The effects of discharge gap, discharge length and Catalyst Mn/ γAl2O3 on the degradation of benzene were studied. The results indicate that: under the same voltage, the reactor with a small discharge gap has the larger injecting energy, which is favorable for the degradation of benzene; the order of the positive effect of discharge gap on the removal of benzene is 3.5 mm>6 mm>8 mm; the decomposition efficiency of benzene increases as the discharge length increases; more benzene is further removed due to the addition of Mn/ γAl2O3; the degradation efficiency of benzene and the carbon oxides selectivity are both improved with the amount of Mn increasing to 15%，91.8% and 94.6% respectively.

Key words: bipolar pulsed highvoltage; dielectric barrier discharge (DBD); benzene; catalysts

王文瑞1, 2, 李锻1, 鲁娜1, 3, 吴彦1, 3. 双极性高压脉冲DBD降解气态苯的实验研究[J]. 广东工业大学学报, 2011, 28(3): 51-53.

WANG Wen-Rui1, 2 , LI Duan1, LU Na1, 3 , WU Yan1, 3 . Decomposition of Gaseous Benzene by Bipolar Pulsed Highvoltage DBD[J]. Journal of Guangdong University of Technology, 2011, 28(3): 51-53.

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