脉冲电晕反应器结构对乙硫醇消除效果的影响

研究了脉冲电晕等离子体反应器结构的变化对乙硫醇消除效果的影响规律。结果表明，在反应器内设置折流板，可以增加气流的湍动程度，有利于活性粒子与污染物的充分接触，从而提高消除率。高压电极间距对电晕区范围及消毒效果有较大影响，间距较小将导致各电极产生的电场相互干扰明显，消除率减小；而电极间距过大，虽然电极间电场分布相互干扰小，但是反应器内可排布的电极数减少，总电晕区减少，消除率也减小。根据实验结果，电极间距设置为50 mm比较合理。另外，在相同的电场强度和脉冲频率下，毛刺形高压电极比线电极结构能耗低，能量利用率高。

Influence of pulse corona reactor structure on removal efficiency of ethanethiol

The influence of pulse corona plasma reactor structure on removal efficiency of ethanethiol was investigated. The experimental results demonstrate that the removal efficiency can be increased when some baffle plates are installed in the reactor, because the baffle plates can disorder the distribution of hazard gas flow and make active particles collide and react with pollutant molecules sufficiently. The space between adjacent high voltage electrodes has an obvious influence on corona region. The removal efficiency will decrease when the space is narrow, because it will intensify the interaction between electric fields generated by each electrode. While it will also lead the total corona region shrinking and removal efficiency decreasing when the space is excessive broad, because fewer electrodes can be arranged in the reactor, though the interaction between electric fields is nearly not occurring. Therefore, the appropriate space is 50 mm according to the experimental results. In addition, lower energy consumption and higher energy yield can be obtained when spiny electrodes are used, compared with wire electrodes, with the same electric intensity and pulse frequency.