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Methane Conversion in the Flowing Afterglow of a Dinitrogen Microwave Plasma: Initiation of the Reaction

✍ Scribed by J.-C. Legrand; A.-M. Diamy; R. Hrach; V. Hrachova

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 825 KB
Volume: 37
Category: Article
ISSN: 0005-8025
DOI: 10.1002/ctpp.2150370606

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✦ Synopsis

The reaction of methane in the nitrogen afterglow is studied by combination of direct measurements and computer experiment. Theexperimental 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 CH, and H radicals.

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