Research on New Plasma Reactor for NOx Reduction by Discharge

叠加式表面无声放电反应器由双同轴圆柱体结构组成。该反应堆有三个电极。实验结果表明：(1)在大气隙、低气体流量和大电流条件下，NOx的分解率增加；(2)放电的叠加效应取决于放电休息时间的缩短和放电空间的扩展；(3)三相电源系统比单相电源系统更能提高NOx的分解率；(4)高频电源比商用电源更能提高NOx的分解率。(5)通过在放电空间叠加声波提高了NOx的分解率。这些研究结果为设计大功率的NOx分解等离子体反应器提供了依据。

The superimposing surface and silent discharge reactor consist of double coaxial cylinders configuration. The reactor has three electrodes. The experimental results shown as follows.(1) NOx decomposition rate increase by at large air gap, by at low gas flow rate and by at large discharge current condition.(2) Discharge superimposing effect are depend on shortening of discharge rest time and spreading of discharge space.(3) NOx decomposition rate rather increase by 3 phase electric source system than by single phase electric source system.(4) NOx decomposition rate rather increase by high frequency electric source than by commercial electric source.(5) NOx decomposition rate increase by Superimposing sound wave on discharge space.These research results encouraged to design high power NOx decomposition plasma reactor.