CAJ | 학술논문

为获得中高温条件下高效脱除烟气中HCl的吸附剂，对自制类水滑石吸附剂HTL与常用的吸附剂CaO，NaHCO3在不同温度（300～700℃）、不同HCl初始浓度（750～1500 mg/m3）以及不同反应时间条件下对HCl的脱除特性进行了比较研究。结果表明：随HCl初始浓度的升高、反应时间的延长，CaO，NaHCO3的脱除效率都呈下降趋势；随温度升高，CaO对HCl的脱除效率一直呈下降趋势，而NaHCO3对HCl的脱除效率先下降，在550℃后又呈现上升趋势，并且在温度高于600℃时NaHCO3，CaO均出现了结块和熔融现象；而以上各条件对HTL的影响不大，其脱除效率一直高于95％。
위획득중고온조건하고효탈제연기중HCl적흡부제，대자제류수활석흡부제HTL여상용적흡부제CaO，NaHCO3재불동온도（300～700℃）、불동HCl초시농도（750～1500 mg/m3）이급불동반응시간조건하대HCl적탈제특성진행료비교연구。결과표명：수HCl초시농도적승고、반응시간적연장，CaO，NaHCO3적탈제효솔도정하강추세；수온도승고，CaO대HCl적탈제효솔일직정하강추세，이NaHCO3대HCl적탈제효솔선하강，재550℃후우정현상승추세，병차재온도고우600℃시NaHCO3，CaO균출현료결괴화용융현상；이이상각조건대HTL적영향불대，기탈제효솔일직고우95％。
In order to obtain sorbent that can remove HCl with high efficiency at medium-high tem-perature,the removal efficiency of hydrotalcite-like sorbent (HTL)prepared domestically was com-pared with traditional sorbents such as CaO,NaHCO3 under different temperatures (300 to 700 ℃), initial concentrations of HCl (750 to 1 500 mg/m3 ),and reaction times.The results show that,with the increase of initial concentrations of HCl and the extension of reaction time,the removal efficien-cies of CaO,NaHCO3 decrease.With the temperature increasing,the removal efficiency of CaO de-clines.However,the removal efficiency of NaHCO3 falls at the beginning,and then rises after 550℃.And when the temperature is high than 600 ℃,NaHCO3 and CaO are sintered and melted. However,the above conditions have little influence on HTL.The removal efficiency of HTL under different conditions always keeps more than 95%.