Reaction mechanism of methane activation using non-equilibrium pulsed discharge at room temperature

Shigeru Kado*, Kohei Urasaki, Yasushi Sekine, Kaoru Fujimoto, Tomohiro Nozaki, Ken Okazaki

*この研究の対応する著者

研究成果査読

109 被引用数 (Scopus)

抄録

The reaction mechanism of methane activation using non-equilibrium pulsed discharge was largely clarified from the emission spectroscopic study and experiments with higher hydrocarbons and some kinds of isotopes. The strong emission of atomic carbon and C2 swan band system was observed as well as H Balmer series emission. This indicates that methane was highly dissociated into C and H by electron impact, which is consistent with the result of high C2D2 composition in produced acetylene when the mixture of CH4 and D2 was fed into discharge region. High electron energy contributed to produce atomic carbon directly from methane, and high electron density promoted the dehydrogenation from CH 3, CH2 and CH to produce atomic carbon consecutively. The reason for the high selectivity to C2H2 was the high concentration of CH or C2 formed from atomic carbon, and the repetition mechanism of decomposition and recombination among C, CH, C 2 and C2H2.

本文言語English
ページ(範囲)2291-2297
ページ数7
ジャーナルFuel
82
18
DOI
出版ステータスPublished - 2003 12 1

ASJC Scopus subject areas

  • 化学工学(全般)
  • 燃料技術
  • エネルギー工学および電力技術
  • 有機化学

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