Over the years, the combined Non-thermal Plasma (NTP) denitrification process which is used for decomposition of NOx has have become an application technology with great potential. And the formation of byproducts, such as N 2 O and O 3 , which is an important factor that interfere with NO removal efficiency, has a high research value. In present study, HZSM-5 molecular sieve was selected as the packed material in dielectric barrier discharge reactor to investigate the effect of reaction conditions, such as with/without packed bed, discharge power, inner electrode diameter, electrode shape and operation time, on formation and conversion characteristics of byproducts (N 2 O and O 3 ). Results showed that the presence of HZSM-5 pellets in discharge zone increases the discharge power, NO removal efficiency and the concentration of the byproducts in the outlet. The optimization of electrode diameter and the utilization of screw thread electrode increased the NO removal efficiency and the yield of N 2 O and O 3 . The pellets temperature increases with the operation time and the enhancement of input energy, which has different effects on O 3 and N 2 O. These results provide some new methods for improving the NTP-assisted catalytic denitrification process.

中文翻译：

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用于 NO 转化的非热等离子体的副产物生成特性：反应条件的影响

多年来，用于NOx分解的组合式非热等离子（NTP）脱硝工艺已成为具有巨大潜力的应用技术。而N 2 O、O 3 等副产物的生成是影响NO去除效率的重要因素，具有较高的研究价值。本研究选择HZSM-5分子筛作为介质阻挡放电反应器的填充材料，研究反应条件有/无填充床、放电功率、内电极直径、电极形状和操作时间对反应器的影响。副产物（N 2 O 和O 3 ）的形成和转化特性。结果表明，放电区HZSM-5颗粒的存在增加了放电功率，NO去除效率和出口副产物的浓度。电极直径的优化和螺纹电极的利用提高了NO去除效率和N 2 O和O 3 的产率。球团温度随着操作时间和输入能量的增加而升高，对O 3 和N 2 O有不同的影响。这些结果为改进NTP辅助催化脱硝工艺提供了一些新方法。