Reduction of NO<sub>2</sub> in Simulated Exhaust Gas Using Dielectric Barrier Discharge

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  • 誘電体バリア放電を用いたNO<sub>2</sub>除去
  • 誘電体バリア放電を用いたNO2除去
  • ユウデンタイ バリア ホウデン オ モチイタ NO2 ジョキョ

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This paper presents the removal of nitrogen dioxide (NO2) in air by dielectric-barrier discharge. Using an electrode with needles, the discharge plasma was produced at remarkably low voltage. The discharge onset voltage is in a range of 2-3kV in effective value at atmospheric pressure. In this experiment, air was added with gas mixture of N2 and NO2 with the NO2 concentration of 979 or 1, 056ppm. The NO2 removal rate was almost attained to 100‰ at the flow rate of 4l/min under a condition that applied voltage and frequency are 2.8kV and 20kHz, respectively. The results show that there exists in applied voltage and frequency a certain region where this method is applicable to the NOx removal.

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