催化剂制备工艺对烟气中单质汞脱除效果的影响  

Effect of Catalyst Preparation Methods on Elemental Mercury in Flue Gas

作　　者：石莹莹[1] 张强华[1] 陈静[1] 刘逸涵 

机构地区：[1]淮阴工学院生命科学与化学工程学院,江苏省凹土资源利用重点实验室,江苏淮安223003

出　　处：《广东化工》2015年第2期29-30,共2页Guangdong Chemical Industry

基　　金：国家自然科学基金资助项目(51174096);江苏省环保科研课题(2013031);江苏省盐化工新材料工程实验室开放课题(SF201406)

摘　　要：以浸渍法制备Mo掺杂Mn Ox/凹土催化剂,在固定床实验台上,考察前驱体、浸渍顺序、焙烧温度等不同的制备工艺对催化剂脱除模拟烟气单质汞性能的影响。结果表明,硝酸锰浸渍催化剂的脱汞效率优于醋酸锰和二氯化锰,催化剂最佳的浸渍顺序为先浸Mn,后浸Mo,最佳反应温度和焙烧温度分别为120℃和400℃。A series of molybdenum doped manganese oxide/attapulgite catalyst were prepared by dipping method. The effects of preparation method such as precursor, impregnation sequence and calcinations temperature which influenced the Hg0 removal efficiency from simulated flue gas were studied by a laboratory-scale fixed-bed reactor system. The results shows that the catalyst prepared with manganese nitrate exhibits higher removal efficiency than catalyst prepared with manganese acetate and manganese chloride dehydrate. The best impregnation sequence is first dipping Mn, later Mo, and the optimal reaction temperature and calcinations temperature are 120℃ and 400℃ respectively.

关 键 词：制备工艺 催化剂 单质汞 前驱体 

分 类 号：X701.7[环境科学与工程—环境工程] TD985[矿业工程—选矿]