Role of CH, CH 3, and OH radicals in organic compound decomposition by water plasmas

Takayuki Watanabe, Narengerile, Hiroshi Nishioka

研究成果: ジャーナルへの寄稿学術誌査読

13 被引用数 (Scopus)


Decomposition of acetone, methanol, ethanol, and glycerine by water plasmas at atmospheric pressure has been investigated using a direct current discharge. At torch powers of 910-1,050 W and organic compound concentrations of 1-10 mol%, the decomposition rate of methanol and glycerine was over 99%, while those of acetone and ethanol was 95.4-99%. The concentrations of H 2 obtained were 60-80% in the effluent gas for any compounds by pyrolysis. Based on the experimental results, the decomposition mechanism of organic compounds in water plasmas was proposed and the roles of intermediate species such as CH, CH 3, and OH have been investigated; CH radical generated from organic compounds decomposition was easily oxidized to form CO; incomplete oxidation of CH 3 leads to C 2H 2 generation as well as soot formation; and negligible amount of soot observed from glycerine decomposition even at high concentration indicated that oxidation of CH×( ×:1-3) was enhanced by OH radical.

ジャーナルPlasma Chemistry and Plasma Processing
出版ステータス出版済み - 2月 1 2012

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 化学工学(全般)
  • 凝縮系物理学
  • 表面、皮膜および薄膜


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