中文摘要：

利用自行设计的低温等离子体发生器，结合发射光谱研究了C3H6初始浓度对NTP转化c3H6／N0／N2／02气氛中NO的影响规律。研究结果表明，C3H6初始浓度不同时，均存在一个C3H6完全消耗的功率点，到达该功率点之前，相同功率下NO转化率随C3H6初始浓度升高而升高，N02浓度随放电功率升高而增大；放电功率超过C3H6完全消耗的功率点时，N02浓度随放电功率升高而降低，03浓度的变化规律与N02相同；添加适量的C3H6可提高NO。的转化效率，降低能耗；添加C3H6可提高N2第二正带系的发射光谱强度，影响反应气体中活性物质的数量与分布，从而影响NO转化机制。

英文摘要：

By using a self-designed non-thermal plasma reactor, the effects of initial concentration of C3H6 on the NO conversion in C3HB/NO/N2/O2 with emission spectroscopy diagnosis was studied. The results indicated that there were power points corresponding to C3H6 totally consumed at different initial concentration of C3H6. Before the discharge power arrived at corresponding power points, the conversion rate of NO grew with the increasing of the initial concentration of C3H6 under the same discharge power. The concentration of NO2 increased firstly and then decreased with the rising of discharge power, and the variation of the concentration of 03 was similar with that of NO2. Adding C3H6 could improve the NOx conversion efficiency and reduce energy consmnption. N2 emission spectral intensity in C3H6/NO/N2/O2 was greater than that in NO/N2/02, which indicated that adding C3H6 would affect the amount and distribution of active substances to influent the NO conversion mechanism.