摘要
采用介质阻挡放电作为低温等离子体的产生方式,研究了湿度在介质阻挡放电降解甲苯中的影响,考察了不同背景气氛以及有无催化剂时湿度对甲苯去除的影响.实验结果表明,无催化剂以及反应气氛中氧的体积分数为5.00%的N2时,最佳湿度为0.20%.无催化剂以及反应气氛中氧的体积分数为0.05%时,水汽的加入降低了对甲苯的去除效率;反应气氛中氧气的体积分数≥5.00%时,水汽的加入提高了对甲苯的去除效率.当有催化剂存在时,水汽的加入降低了对甲苯的去除效率.
Dielectric barrier discharge (DBD) was used to produce non-thermal plasma, and the effect of humidity on toluene decomposition studied. In addition, the effect of humidity under different background gases and with/without catalyst on toluene removal was studied. It was found that when no catalyst existed and the background gas was N2 containing 5.00% O2, the optimum humidity was 0.20%. When the oxygen content in the background gas was very low (0. 05% O2) or when a catalyst was introduced into the discharge area, adding water would decrease the toluene removal efficiency. However, when the oxygen content was high enough (≥5.00%), the situation tend to be reversed.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2008年第8期745-748,共4页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(50708021)
广州大学新苗计划项目(gyfl-1001)
广州大学博士启动基金项目(gyfl-1002)
关键词
介质阻挡放电
湿度
甲苯
催化剂
dielectric barrier discharge
humidity
toluene
catalyst