个人信息Personal Information
副教授
博士生导师
硕士生导师
性别:女
毕业院校:大连理工大学
学位:博士
所在单位:电气工程学院
学科:电工理论与新技术. 环境工程. 高电压与绝缘技术
办公地点:静电与特种电源研究所303
联系方式:jiangnan@dlut.edu.cn
电子邮箱:jiangnan@dlut.edu.cn
Improved Performance for Toluene Abatement in a Continuous-Flow Pulsed Sliding Discharge Reactor Based on Three-Electrode Configuration
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论文类型:期刊论文
发表时间:2019-01-01
发表刊物:PLASMA CHEMISTRY AND PLASMA PROCESSING
收录刊物:SCIE、Scopus
卷号:39
期号:1
页面范围:227-240
ISSN号:0272-4324
关键字:VOCs degradation; Pulsed discharge plasma; Sliding DBD; Three-electrode configuration; Plasma reactor optimization
摘要:The degradation of toluene by non-thermal plasma has been evaluated in a continuous-flow sliding dielectric barrier discharge (SLDBD) reactor based on three-electrode configuration and compared with a traditional surface dielectric barrier discharge reactor. In order to optimize the electrical and geometry parameters of the SLDBD reactor, the effects of positive pulsed high-voltage (U+pulse), negative DC voltage (U-DC), pulse-forming capacitance (C-p)), inter-electrode gap, discharge length, and dielectric material have been systematically investigated. Morphological characterizations demonstrate that the steamer channels can propagate more homogeneously along the dielectric surface when a sufficient U-DC is applied under the condition of slight increase in energy. The average discharge power of the SLDBD reactor mainly depends on U+pulse, while which is less affected by U-DC. Unexpectedly, both toluene degradation efficiency and energy yield using the SLDBD increase significantly as U-DC, indicating that VOC degradation is not only determined by the energy primarily provided by U+pulse, but also depends on the drift of the ionized species induced by U-DC. Increasing C-p enhances the energy injected into the SLDBD reactor and leads to a higher toluene degradation efficiency, but lowers the energy yield when the other parameters remains unchanged. The optimal C-p is 0.67nF. Shorter inter-electrode gap and longer discharge length appear to be more advantageous in terms of toluene degradation and energy yield. Quartz plate exhibits remarkably better degradation and energy performance than ceramic and polytef ones, leading to the maximum toluene degradation efficiency of 58% and energy yield of 0.85g/kWh in this work.