The present study is devoted to the investigation of N₂O formation characteristics in dielectric barrier discharge (DBD) reactor for environmental application. The effect of operating parameters, such as specific energy density (SED), O₂ concentration, NO initial concentration, and residence time on N₂O concentration was investigated in dry O₂/N₂ mixtures. N₂O formation from bulk gas (O₂ and N₂) is inevitable in DBD chemical process and was observed in all DBD reactors. N₂O concentration shows an exponential increase or decrease with the variation in operating parameter. The experimental results show that N₂O concentration first increases and then reaches saturation with the increase in SED and O₂ concentration, respectively. N₂O concentration shows a monotonic increase with increasing residence time. N₂O concentration decreases with NO concentration increasing from 50 ppm to 600 ppm. The N₂O formation is enhanced with γ-Al₂O₃ pellets packing into the DBD reactor compared with that of DBD reactor alone.

中文翻译：

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环保型介质阻挡放电反应器中N ₂ O的形成特性：操作参数的影响

本研究致力于环境应用中的介质阻挡放电（DBD）反应器中N ₂ O形成特性的研究。在干燥的O ₂ / N ₂混合物中研究了操作参数（例如比能量密度（SED），O ₂浓度，NO初始浓度和停留时间）对N ₂ O浓度的影响。在DBD化学过程中不可避免地会从大量气体（O ₂和N ₂）中形成N ₂ O，并且在所有DBD反应器中都观察到了这种情况。N ₂O浓度随操作参数的变化呈指数增加或减少。实验结果表明，随着SED和O ₂浓度的增加，N ₂ O浓度先增加，然后达到饱和。N ₂ O浓度随停留时间的增加而单调增加。N ₂ O浓度随NO浓度从50 ppm增加到600 ppm而降低。所述N个₂ ö形成与在γ-Al增强_2个ö ₃粒料包装到DBD反应器与单独DBD反应器的比较。