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通过建立低温等离子体实验系统,研究了介质阻挡放电型低温等离子体反应器作用于NO/O2/N2混合气体系时,NO,O2初始浓度对NO的转化效率的影响以及NOx,O3浓度随能量密度的变化关系.低温等离子体作用于NO/O2/N2混合气体系时,NO同时发生氧化还原反应,氧化反应占主导地位,大部分NO转化为NO2;NO转化率随O2,NO初始浓度增大而降低,能量密度在450～600J/L时转化率较高;产生的O3浓度随能量密度的增大呈先增后减的趋势.
Through the establishment of a low-temperature plasma experimental system, the effects of the initial concentration of NO and O2 on the NO conversion efficiency and the dependence of NOx and O3 concentrations on the performance of the NO / O2 / N2 mixed gas reactors were studied. When the low-temperature plasma was applied to the NO / O2 / N2 mixture system, the oxidation-reduction reaction took place at the same time. The oxidation reaction dominates and most NO is converted to NO2. The NO conversion rate increases with the initial concentrations of O2 and NO The energy conversion rate is higher when the energy density is 450-600 J / L; the concentration of O3 produced increases first and then decreases with the increase of energy density.