CAJ | 학술논문

讨论了煤炭燃烧中汞的状态变化,分析了燃煤电厂现有烟气净化系统对汞的协同脱除效率；认为ESP能够脱除烟气中几乎全部颗粒态汞及部分氧化态汞和单质态汞,WFGD能够脱除80%以上的氧化态汞,WESP能够脱除烟气中残留的大部分颗粒态汞和氧化态汞,且能够脱除部分单质态汞,SCR能够把40%以上的单质态汞转化为氧化态汞,从而促进ESP、WFGD和WESP的脱汞效率。经过SCR+ESP+WFGD+WESP的协同脱除后,烟气中的大部分汞将会被脱除,汞的排放浓度将大大低于国家要求的0.03 mg/m3的排放标准,同时大大降低了烟气中汞污染物的脱除费用。
토론료매탄연소중홍적상태변화,분석료연매전엄현유연기정화계통대홍적협동탈제효솔；인위ESP능구탈제연기중궤호전부과립태홍급부분양화태홍화단질태홍,WFGD능구탈제80%이상적양화태홍,WESP능구탈제연기중잔류적대부분과립태홍화양화태홍,차능구탈제부분단질태홍,SCR능구파40%이상적단질태홍전화위양화태홍,종이촉진ESP、WFGD화WESP적탈홍효솔。경과SCR+ESP+WFGD+WESP적협동탈제후,연기중적대부분홍장회피탈제,홍적배방농도장대대저우국가요구적0.03 mg/m3적배방표준,동시대대강저료연기중홍오염물적탈제비용。
It discusses the state changes of the combustion of coal mercury,analyzed the efficiency of synergic removaling mercury through the Existing Flue-gas Cleaning Devices of Coal-fired power plant; believe that ESP can remove almost al of the particles in the flue gas and partial oxidation of mercury and elemental mercu-ry mercury, WFGD can remove more than 80% of oxidized mercury, WESP able to remove most of the particu-late bound mercury and oxidized mercury remaining in the flue gas, and WESP is capable of removing part of the elemental mercury, SCR can converte more than 40% of the be elemental mercury to oxidized mercury, thereby it can promote mercury removal efficiency by ESP, WFGD and WESP. After cooperative removaling through SCR+ESP+WFGD+WESP, most of the mercury in the flue gas wil be removed, the concentration of mercury emissions wil be significantly lower than national emission standards required by 0. 03 mg/m3 , while it can greatly reduce the cost for mercury removaling of flue gas.