Study of Humidity Effect on Benzene Decomposition by the Dielectric Barrier Discharge Nonthermal Plasma Reactor

作     者：马天鹏 赵琼 刘建奇 钟方川 

作者机构：College of Environmental Science and EngineeringDonghua University College of Electrical and Information EngineeringBeifang University of Nationalities College of ScienceDonghua University 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2016年第18卷第6期

页      面：686-692页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(Nos.11205007 and 11205029) 

主　　题：relative humidity nonthermal plasma benzene decomposition dielectric barrier discharge 

摘      要：The humidity effects on the benzene decomposition process were investigated by the dielectric barrier discharge（DBD） plasma *** results showed that the water vapor played an important role in the benzene oxidation *** was found that there was an optimum humidity value for the benzene removal efficiency,and at around 60% relative humidity（RH）,the optimum benzene removal efficiency was *** a SIE of 378 J/L,the removal efficiency was 66% at 0% RH,while the removal efficiency reached 75.3% at 60% RH and dropped to 69% at 80% ***,the addition of water inhibited the formation of ozone and NO2 *** of the concentrations of ozone and NO2 decreased with increasing of the RH at the same specific input *** a SIE of 256 J/L,the concentrations of ozone and NO2 were 5.4 mg/L and 1791 ppm under dry conditions,whereas they were only 3.4 mg/L and 1119 ppm at 63.5%RH,***,the outlet gas after benzene degradation was qualitatively analyzed by FT-IR and GC-MS to determine possible intermediate *** results suggested that the byproducts in decomposition of benzene primarily consisted of phenol and substitutions of *** on these byproducts a benzene degradation mechanism was proposed.