Abstract
Effects of gas flow rate and initial NO concentration on NO removal using a dielectric barrier discharge were investigated experimentally. When the initial NO concentration was high, the DeNO_x performance was deteriorated. Moreover, DeNO_x performance became low with increasing gas flow rate. Then effect of O_2 concentration on NO removal using a dielectric barrier discharge was investigated experimentally. N_2/NO/O_2 mixture was used as the test gas. The O_2 concentration was changed from 0% to 20%. In the case of nitorgen atmosphere(O_2=0%), NO was mainly removed by N radical. On the other hand, in the case of exsiting O_2, NO removal mechanism was controlled by the concentration of ozone, which formed from O_2 with barrier discharge.
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