The Combined Effect Analysis And Evaluation Of Denitration Renovation Project Of G Power Plant 300MW Unit

China is rich in coal resources in the future for a long period of time, coal is still the country’s main primary energy. Coal-fired power plant in the production process, resulting in a lot of dust, SO2, NOx and other pollutants are causing a major source of air pollution. "Thermal power plant air pollutant emission standards" GB13223-2011 recently promulgated by the State Environmental Protection Department required since July 11,2014, the existing boiler and gas turbine power generation unit to perform 100 mg / m3 of nitrogen oxides limit, ’’ five "comprehensive energy conservation program of work" requires all new coal-fired units installed denitration facilities, stand-alone capacity 300,000 kilowatts and above all coal-fired units to install denitration facilities. Therefore, the implementation of coal-fired power plant denitration renovation and emission control has become essential.In this paper, G Power 300 MW unit low NOx combustion(LNB) and Selective Catalytic Reduction of NOx(SCR) combining denitration renovation project for the study, combined with national control NOx policies and regulations, low NOx combustion technology and SCR DeNOx technology respective The principle and performance analysis is based on the necessity of introduction and overview G Power 300 MW unit denitration building renovation project in the required condition of the building, on the basis of time arrangements, research and analysis objectives of the denitration renovation project realization, the technical level and technological transformation effects, economic and parameter sensitivity, environmental and social benefits, on this basis, combining the characteristics of denitration renovation project, the project to build a comprehensive evaluation index system from technological innovation, economic, environmental and social benefits of the three aspects, and AHP to determine the relevant index weight, and then the fuzzy comprehensive evaluation of their final evaluation results for the success of the project technical innovation that works well, reasonable input costs, environmental benefits and significant social benefits. In short, the combined effect of G power plant 300 MW unit denitration renovation project analysis and evaluation of similar capacity thermal power enterprises the same or similar unit denitration transform research provides some reference value.