Design For Removing NO_x Transfermation Project Of A Xinjiang 2×300MW Heat Power Station

With the rapid development of technology and the acceleration of industrialization in China,on the one hand,the rapid consumption of industrial energy restricts the development of China's economy,on the other hand,industrial coal also brought environmental pollution?Coal emissions of pollutants such as NOx on the atmospheric environment caused serious harm.China as a coal country,in order to slow down the environmental pollution caused by coal,developed a series of policy measures to limit the emission of pollutants such as NOx.A thermal power plant design the 2×300MW subcritical boiler denitrification system to meet the national and regional environmental policy requirements.Design research mainly includes the following aspects:(1)Comparison of denitrification process.This paper analyzes the principles,processes and characteristics of SCR and SNCR in current mature flue gas denitrification technology,and makes a comprehensive comparison of the process difficulty,efficiency,economic benefit and engineering cost of these two methods,and combined with the actual situation of the thermal power plant and the relevant requirements of flue gas denitrification to determine use the SNCR denitrification technology for boiler flue gas treatment.(2)The design of denitration process.According to the selected denitrification process and the actual situation of the thermal power plant,the facilities of the denitration solution of the denitrification system,the storage system of the reducing agent,the dilution water system,the mixed distribution system,the injection system and the control system are specially designed.(3)The analysis of the denitrification engineering economy and benefit Estimate the operation cost of denitrification process and analyze the environmental benefits and social benefits after denitrification.