Fe_2O_3强化CaO粉末中温烟气脱硫的研究  

Study of desulphurization using CaO powder strengthened by Fe_2O_3 at medium temperature

作　　者：李春花[1] 王华[1] 胡建杭[1] 吴桢芬[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,云南昆明650093

出　　处：《应用化工》2006年第2期92-95,共4页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(E041803);云南省科技攻关项目(2001GG19)

摘　　要：为了研究粉煤灰中Fe2O3含量对钙基脱硫性能的影响，分别以CaO和CaO与Fe2O3，的混合物为吸收剂进行实验，并加以比较。研究了加入氧化铁添加剂后，对中温烟气脱硫性能的影响和对固定床干法脱硫最佳温度的影响，氧化铁配比对氧化钙脱硫性能的影响等。结果表明，加入一定量的氧化铁，可以显著提高脱硫效率和氧化钙的利用率。当温度在650～750℃时，氧化铁与氧化钙的配比为1：10时效果最好，脱硫效率可达94％，钙利用率54％。In order to study the effect of Fe2O3 in pulverized coal ash on the desulphurization characterization of calcium-based sorbent, CaO and its mixture with Fe2O3 were used as sorbents in the experiment,and the desulphurization characterizations were compared. The effect of Fe2O3 on medium temperature FGD characterization ,optimum temperature in fixed bed and proportion of Fe2O3 and CaO were studied in the experiment. The result showed that adding Fe2O3 could enhance desulphurization efficiency and utilization efficiency of CaO. When temperature from 650 to 750℃ and proportion of Fe2O3 and CaO is 1 ： 10, optimum condition can be achieved, the desulphurization rate and utilization rate may up to 94%, 54% respectively.

关 键 词：氧化铁 中温烟气脱硫 最佳温度 

分 类 号：X5[环境科学与工程—环境工程]