Research On The Application Of Flue Gas Denitrification Technology In Thermal Power Plant Projects

Nitrogen oxides are among the major atmospheric pollutants, also the main factor causing acid rain and photochemical smog. So far, there are a variety of coal-burning flue gas nitrogen oxide treatment technologies in many countries. Both SCR (Selective Catalytic Reduction) and SNCR (Selective non-Catalytic Reduction) are commercially applied in large-scale coal-burning power plants. SCR has been successfully applied in hundreds of units worldwide for more than ten years. In Japan and Germany 95% of the flue gas denitrification devices adopt SCR technology. Because this technology is mature, with a high denitrification rate, almost having no secondary pollution, it should be a focus for our country to introduce and digest flue gas denitrification technology. This paper will focus on five aspects, i.e. power plant denitrification (SCR) technology and its engineering application, status quo of domestic equipment, liquid ammonia environmental risk analysis, system design, construction, commissioning, and operation management experience as well as technical and economic analysis etc to discuss the applied research on the localization of this technology.