Experimental Investigation On Decomposing Of Volatile Organic Compounds(vocs)by Using Pulse Corona Technology

The pollution of volatile organic compounds (VOCs) is receiving more and more attention. Among current technologies for controlling VOCs, pulse corona induced plasma discharge process (PCPP) is regarded as a promising technology to control these pollutants.Experimental research on destroying VOCs by PCPP is discussed in this paper, where benzene was selected as a representational matter of VOCs. The purpose of this study is to examine the course, influence factors (concentration, input voltage and pulsed peak voltage), and the associated mechanismis on the destroyingVOCs by PCPP. In addition, the samples and the products have been investigated by using gas chromatography (GC). Four different treatments on VOCs connection were designed: A:mix together before corona discharge, B:corona discharge benzene sample only, C: corona discharge air only, both benzene sample and D:air is corona discharged before mix together. Results of the research indicated that the optimal experimental conditions, i.e., applied voltage of 140kV and connection of A:mix together before corona discharge, contribuated the removal efficiency equal to 82.73%. On the basis of unchanged inlet concentration, resident time and parameter of electrical source, the removal efficiency of benzene were investigated at different voltages. Compared with the four different connections (A, B, C and D), the removal efficiency was in the order as A>B>D>C.