Abstract
Recently, the concern of the fine dust is increasing in our society and nitrogen oxides(NOx) has been considered as precursor of fine dust. Because, as well as the coal-fired power plants, the combined cycle power plants using LNG fuel also emit nitrogen oxides, our society strongly demands to lower the emission of NOx from the combined cycle power plants. In response of the public demand, Korean government set more stringent emission standard. Therefore, LNG power plants need to cope with it. The purpose of this paper is to study a reactive test that leads to Fast SCR by adjusting the mixing ratio of hydrocarbon reducing agent and NH3 reducing agent respectively. By so, it is expected to minimize the negative impact on the power plant operation and the power generation efficiency and contribute to the environment-friendly operation of power plant. Possessing a DeNOx system applicable to old combined cycle power plants and obtaining leading study results on the simultaneous removal of nitrogen oxides
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