CAJ | 학술논문

通过燃煤与燃浆锅炉脱硫效果的分析与比较,论证了水煤浆具有烟道脱硫作用,阐述了水煤浆烟气脱硫作用机理。高温条件下,在除尘器前段烟道脱硫剂吸附水蒸气生成氢氧化物,再与SO2发生反应生成硫酸盐,同时,脱硫剂产生粉化,比表面积增加,提高了固-气反应的接触碰撞机率；除尘器后段烟道烟气温度接近或低于露点温度,脱硫剂表面存在水滴或液膜,在液膜或液滴中,脱硫剂与 SO2发生反应生成 CaSO3或 CaSO4,从而实现了脱硫,减少了SO2排放浓度。
통과연매여연장과로탈류효과적분석여비교,론증료수매장구유연도탈류작용,천술료수매장연기탈류작용궤리。고온조건하,재제진기전단연도탈류제흡부수증기생성경양화물,재여SO2발생반응생성류산염,동시,탈류제산생분화,비표면적증가,제고료고-기반응적접촉팽당궤솔；제진기후단연도연기온도접근혹저우로점온도,탈류제표면존재수적혹액막,재액막혹액적중,탈류제여 SO2발생반응생성 CaSO3혹 CaSO4,종이실현료탈류,감소료SO2배방농도。
Through the analysis and the comparison of desulfurization efficiency between coal and slurry combustion boilers,it is proved that the coal water slurry possesses desulfurization effect for flue gas?The desulfurization mechanism of coal water slurry for flue gas was expounG ded?At the higher temperature,desulphurizer absorbs water vapor to form hydroxidein before the dust collector,which reacts with SO2 to form sulphate?The desulphurizer simultaneously beG come powder,and the increased specific surface area enhances the contact collision probability of gas solid reaction?After escaping from dust collector,the flue gas temperature is close to or lowG er than the dew point temperature,then water droplets or a liquid film cover the surface of desulG phurizer?The calcium in the surface water exists in the form of Ca2+,and SO2 is absorbed by the water film through diffusion to convert HSO3 -,which reacts with Ca2+ to form CaSO3 ,achieG ving the desulfurization and the reduction of SO2 emission concentration.