Abstract
AbstractFor the requirements of nitric oxide(NOx) and sulfur dioxide(SO2) removal in coal‐fired power plant, a new nonthermal plasma system combined with catalyst was developed. Moreover, the effect of parameters such as temperature, atmosphere, residence time and additives (NH3 and methanol) on NOx (NO and NO2) and SO2 conversion rate was also experimentally evaluated. The results indicated that the new system could greatly promote the NOx conversion rate. As for SO2, the new system only had a slight influence. High temperature suppressed the NO oxidization and slightly promoted the SO2 oxidation. The long residence time was beneficial to the NOx and SO2 oxidization. In the absence of water, the additive of NH3 can improve NO, NOx and SO2 oxidization rate due to the reactions between NH3 and NOx or SO2. Contrary to NH3, methanol had a negative effect on NOx and SO2 oxidization. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd.
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