NO2の放電分解における水分の効果

書誌事項

タイトル別名
  • The Effect of Moisture on NO2 Decomposition by Silent Discharge
  • NO2 ノ ホウデン ブンカイ ニ オケル スイブン ノ コウカ

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抄録

Non-thermal plasma reactors, and in particular surface, silent and superimposed barrier discharge reactors, have shown significant potential for removing NOx, CO2 and SOx emissions from the flue gas of thermal power plants, incinerators, and diesel engines. In the present work, the effect of moisture on the decomposition of NO2 at a reduce pressure 2.7kPa was experimentally investigated. The reactor is a coaxial discharge tube and consisted of strip-type and continuous electrodes mounted on insulating supports.<br>A 50Hz ac high voltage is applied between the electrodes and the current of the silent discharge is maintained at fixed voltage during the experiments. The initial gas and discharge by-products were measured using Fourier Transform Infrared spectroscopy. The experimental results show that the NO2 decreases with increasing humidity and residence reaction time, while NO, N2O and HNO3 appeared in the reaction products. The rate of NO2 reduction was fastest at an initial concentration of water vapour at 200mg/m3 with high oxygen concentration.

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