Performance And Economic Analysis Of Denitrification Technology In Baotou Second Thermal Power Plant

Wants in our country energy structure 70~80% to provide approximately by the coal,in 2009 the national coal consumption 3,020,000,000 tons,burn every time a ton coal,produces the 5~30kg nitrogen oxide compound approximately.According to Chinese Environmental protection Industry Association organizes "Chinese Thermoelectric power station Nitrogen Oxide compound Emissions Control Technology Plan Memoir" the statistics to demonstrate,in 2009 the thermoelectric power station emissions NO_x total quantity increased to 9,090,000 tons,approximately composes the national nitrogen oxide compound emissions total quantity 35~40%,the power plant boiler has become one of main air pollution fixed emissions sources.In order to improve the atmospheric environment quality,the country and the partial local authority have formulated day by day the severe nitrogen oxide compound emissions standard in view of the thermal power profession,requests to take the measure to carry on the pollution government.The Baotou second thermal power plant two units separately and in June,2007 complete the electricity generation in December,2006.The boiler design burns with the bituminous coal,at present,NO_x emissions density 450~630mg/Nm~3,for should to “35”request and prepares carry out "Thermoelectric power station Air pollutant Emissions Standard" approximately to the thermal power profession nitrogen oxide compound control(GB13223-2011),the power plant plans to take the measure to carry on the nitrogen oxide compound to reduce a row of government.Boiler primitive NO_x the emissions density high 500mg/Nm~3,2 Taiwan boiler year discharges the NO_x tota quantity 5877 tons(unit year to use approximately approximately for 5500 hours).After takes the SCR transformation measure to control NO_x 100mg/Nm~3,the year will reduce arranges the NO_x total quantity approximately 4701 tons,to will improve local the atmospheric environment quality to have the vital role,the environment and the social efficiency is remarkable.Will be also large scale reduces power plant every year the NO_x effluent fee.In addition,thermoelectric power station emissions NO_x besides forms the acid rain,but also meets and the hydrocarbon response production carcinogen,has the serious influence to the human body.Therefore,reduces the NO_x emissions large scale through the denitrate project implementation,will be helpful in improves the local atmospheric environment,will have the good macroscopic social efficiency.