常压非平衡态等离子体降解挥发性烃类污染物

采用无声放电产生的非平衡态等离子体，对含有易挥发性有机化合物正己烷、环己烷、苯和甲苯4种典型的烃类废气的空气进行了处理．结果表明，对于一个大气压下正己烷含量（体积分数）为0．26％、0．79％、13％的宁气，在12kV的电压下放电ls，正己烷的降解率分别为88％、81.8％、64．9％．含有环己洗、苯及甲苯浓度为0．26％的空气，在同样的条件下，放电ls后，环己烷、苯及甲苯降解率分别为87．4％、8l％和70．3％，其主要降解产物为CO₂和H₂O．还研究了污染物浓度与氧含量对非平衡态等离子体法降解挥发性烃类污染物的影响

The degradation or volatile hydrocarbon waste gases by non-equilibrium plasma in normal-pressure

A kind of non-equilibrium plasma engendered by silent discharge was utilized to dispose polluted air containing volatile hydrocarbons (he-cane,cyclohexane,benzene and toluene ) v aper.The research result w as that the polluted airwhich contained 0.26%. 0.79% and l.3% of he-cane (V/V),after discharged for I second at 12kV,the degradation ofhe-cane was 88%. 81.8% and 64.9% respechvely;and in the same condition, the POlluted air which contained 0.26% ofcyclohexane,benzene and toluene were degraded after I second discharge, the degradation rates were 87.4%. 8l% and70.3% respeChvely,with the main productS of CO2 and H2O.The influences of pollutant concentration and oxygen concentration on the degradation of volatile hydrocarbons by non-equilibrium plasma method were also stUdied.