Mo掺杂MnOx/凹土复合材料在烟气脱汞中的应用  

Application of Molybdenum Doped Manganese Oxide/Attapulgite Composites for Flue Gas Mercury Removal

作　　者：石莹莹[1] 朱秀芳[1] 马喜君[1] 冯良东[1] 蒋金龙[1] 卢晶晶[1] 张强华[1] 

机构地区：[1]淮阴工学院生命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：《非金属矿》2015年第1期8-11,共4页Non-Metallic Mines

基　　金：国家自然科学基金(51174096);江苏省环保科研课题(2013031)

摘　　要：以盐酸活化凹土为载体,采用浸渍法制备Mo掺杂Mn Ox/凹土复合材料(Mo-Mn-ATP),并经负载Mo/Mn Ox后冻干-焙烧变温致孔处理。采用SEM、EDS、FT-IR、XRD及N2吸附-脱附比表面、孔径结构分析进行表征,并在烟气180℃下考察脱除Hg0的效果。结果表明,制得的Mo-Mn-ATP复合材料,在保持凹土原有晶体结构的基础上,随着Mo/Mn摩尔比的减小,材料的比表面积增大。复合材料在180℃对Hg0的脱除性能比酸改性凹土高,其中Mo(1)-Mn(3)-ATP(10%)复合材料的去除率最高,在200 min内Hg0的去除率高达96%。Attapulgite modiifed with HCl used as supporter to prepare molybdenum doped manganese oxide/attapulgite composites （Mo-Mn-ATP） by dipping method and variable temperature technology. The composites were characterized with SEM, EDS, FT-IR,XRD and BET. The mercury removal performance of Mo-Mn-ATP was also examined at exhaust temperature of 180℃. The results showed that Mo-Mn-ATP keeped the original crystal structure of attapulgite, and with the decrease of the Mo/Mn mole ratio, the surface area increased. The Mo-Mn-ATP mercury remover had a superior mercury removal performance to acid modiifed attapulgite at 180℃, and the highest removal rate of mercury was obtained by Mo（1）-Mn（3）-ATP（10%）,Hg0 removal rate reached 96% in 200 min.

关 键 词：凹土 锰氧化物 钼 复合材料 脱汞 

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