Large-scale Circulating Fluidized Bed Unit Ultra-low Emission Technology Research And Application

Shanxi Coal Co.,Ltd.can Xinlei construction scale of 2 × 350 MW supercritical indirect air-cooled units,with 2 × 1186 t / h supercritical circulating fluidized bed boiler,single reheat,indirect air-cooled turbine generator,air-cooled generator.Dongfang Boiler Co.In order to meet the new ‘Thermal Power Plant Air Pollutant Emission Standards’(GB13223-2011)on key areas of special emission limits of air pollutants,"Shanxi Province on the implementation of air pollution control plan of action plan"(Jin Zheng Fa [2013] No.38),the Executive Shanxi coal-fired generating units flue gas ultra-low emissions standards ⅱ class: nitrogen oxides(NOX)50mg / Nm3,sulfur dioxide(SO2)35mg / Nm3,dust 10 mg / Nm3.Needs to plan in terms of design and construction projects,energy saving,low-carbon environment,economic indicators,investment costs,operating costs,a variety of technical solutions than on the final route selection program for technical route of this project,to achieve ultra-low emissions control objectives.Through denitrification,dust removal,desulfurization,removal techniques,such as efficient analysis,starting from the overall scheme of engineering design,compared to the program has been put into operation to implement the project,and have achieved good results in practical applications,we recommend the use of electric bag filter furnace desulfurization,double loop towers,wet electrostatic precipitators,SNCR and reserve SCR,to form an integrated flue gas pollution control technology collaborative solutions unit flue gas pollutants to achieve ultra-low emission,ultra low as Jinneng Corporation emission control targets contributed.