低温等离子体反应器去除挥发性有机化合物的能效分析

Energy Efficiency Analysis of Nonthermal Plasma Reactor for VOCs Decomposition

为了推动等离子体技术早日商业应用，提高低温等离子体技术的能量效率，本研究采用白行研制优化的管．线式反应装置，考察了不同介质填料、电场强度E、污染物入口质量浓度P0和气流速度v等参数对反应器能量效率ξ的影响。希望通过优化实验参数，可以在保证污染物降解率叩的同时有效提高ξ。实验结果表明，随着污染物v的增加，ξ呈现先增大后减小的趋势；随着P0的增加，ξ呈现先增大后减小的趋势；η和ξ由高到低依次均表现为复合催化剂、B008Sr02Zr01Ti0．903、Mn02／7-A1203、Y-A1203和无填料。因此，在本实验条件下，v为2mL／min，P0范围在1500-2000mg／m0，E在9．6kV／cm左右，填料为复合催化材料，可得到最佳ξ为10g／（kW-h）。研究为等离子体技术的发展提供了新的思路，为该技术的商业应用提供了借鉴。

To increase the energy efficiency of non-thermal plasma technology and hence to promote the technology inVOC decomposition applications, we used a homemade pipe-line plasma reactor to examine the influence of some para-meters （including the different medium packing, electric field strength E, the pollutant inlet concentration Po and gasvelocity v, and so on） on the reactor energy efficiency （ and tried to find an optimum combination of the parameters toincrease （ under the precondition of keeping certain toluene removal efficiency r/. According to the experiments, （ in-creases firstly and then decreases with increasing v, while （increases firstly and then decreases with increasing p0. Both and （decrease successively according to the sequence of using complex catalyst, Bao.8Sro.2Zro.lTio.903, MnO2/y-A1203,y-A1203 as the packing and no packing at all. In our device, a specific experimental condition, namely v of 2 mL/min, Poin the range of 1500-2000 mg/m3, E at the 9.6 kV/cm, and loaded with packing of composite catalytic materials, can helpto get the best energy efficiency, 10 g/（kW.h）. The results could be used as a reference for further application developments.