Methane Conversion in the Flowing Afterglow of a Dinitrogen Microwave Plasma: Initiation of the Reaction
Methane Conversion in the Flowing Afterglow of a Dinitrogen Microwave Plasma: Initiation of the Reaction
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DOI：
10.1002/ctpp.2150370606
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发表时间：
1997
影响因子：
1.6
通讯作者：
J. Legrand;A. Diamy;R. Hrach;V. Hrachová
中科院分区：
文献类型：
--
作者：
J. Legrand;A. Diamy;R. Hrach;V. Hrachová
采用直接测量和计算机实验相结合的方法研究了氮气余辉中甲烷的反应。实验数据通过放电的光学发射光谱、所得稳定产物的气相色谱以及余辉等离子体中带电物质的探针诊断获得。该模拟基于宏观动力学方法，涵盖 24 个物种和 61 个反应，输入数据由余辉实验给出。在建模的现阶段，研究了甲烷转化的启动。研究发现，与主动放电相反，在余辉等离子体中，活性中性物质（主要是受激二氮分子）对于甲烷解离成CHx和H自由基最为重要。
The reaction of methane in the nitrogen afterglow is studied by combination of direct measurements and computer experiment. The experimental data were obtained by optical emission spectroscopy of the discharge, by gas chromatography of resulting stable products and by probe diagnostics of charged species in afterglow plasma. The simulation was based on a macroscopic kinetic approach covering 24 species and 61 reactions with input data given by the afterglow experiment. In the present stage of the modelling the initiation of methane conversion was studied. It was found that, contrary to active discharge, in the afterglow plasma the active neutral species (mainly excited dinitrogen molecules) are most important for the dissociation of methane into CHx and H radicals.