【摘要】 传统结构线-筒式电晕放电装置在降解VOCs时生成的副产物会粘附在放电区域(线电极)上，使得放电间距减小，导致降解效果不稳定。翘片-筒式脉冲电晕流光放电等离子装置的电极结构可将放电区域(翘片尖端-筒)与副产物粘附区域(连接翘片的轴线)分开，从而维持装置的放电强度和稳定性。当翘片-筒式脉冲电晕流光放电反应器相邻翘片间距/放电间距为1，在37 kV下，反应器功率为0.95 W，能量体积密度为和23.6 mJ·L-1，为最优电极配置；处理二氯甲烷2 h后的降解效率呈现小幅度下降后稳定在35%。因此，放电形成的气溶胶部分沉积在凹槽处，可维持反应器稳定的放电强度及对二氯甲烷的降解效率。本研究结果可为低温等离子体处理VOCs废气的性能提升提供参考。更多还原

【Abstract】 The conventional structure of corona discharge is mainly wire-cylinder, and the by-products generated during the degradation of VOCs will adhere to the discharge area(wire electrode) to reduce the discharge spacing, resulting in unstable degradation effect. Therefore, this study proposed a fins-cylinder pulsed corona streamer discharge plasma electrode structure, which separated the discharge area(tip of fins-cylinder)from the by-product adhesion area(axis connecting the fins)to enhance the system discharge intensity and stability. The results showed that the fins electrode structure with adjacent fin spacing/discharge spacing(A/B=1) was the best electrode design, with highest values of reactor power and energy volume density at 31 kV being 0.98 W and 37.9 mJ·L-1, respectively. The degradation efficiency of dichloromethane decreased slightly after 2 h treatment and then stabilized at 35%. Aerosols produced by the discharge were partially deposited in the grooves without substantially altering the electrode discharge, which guaranteed the stability of the intensity of the discharge and the degradation efficiency of dichloromethane.. This study can serve as a foundation for future research on low temperature plasma treatment of VOC exhaust gas.更多还原