大気圧窒素コロナ放電における窒素原子生成量の推定

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タイトル別名
  • Estimation of the Amount of N atoms Generated by Nz Corona Discharges
  • タイキアツ チッソ コロナ ホウデン ニ オケル チッソ ゲンシ セイセイリョ

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A pulsed corona discharge at atmospheric pressure can be used for combustion gas treatment. It is expected to remove NOx and SO2 with low energy consumption. The main process is estimated to be radical reactions such as N and OH with NOx. These radicals are produced by the collisions between fast electrons and major species of combustion gas.<br>This paper presents a new method for the evaluation of the total amount of N atoms produced by corona discharges. The experiment of N2+NO gas treatment was performed changing the initial NO concentration and keeping the discharge input power constant. Analyzing the data at the high NO concentration region, it was shown that the total amount of N atom production was approximately equal to the reduction quantity of NOx. The energy efficiency of N atom production was estimated to be about 70eV/N-atom and the utilization rate of the effective energy used for N atom production was about 8%.

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