钴钛层柱粘土催化剂催脱除零价汞  

Catalytic removal of elemental mercury by Co-Ti-pillared clays catalysts

作　　者：盘思伟[1] 唐念[1] 胡将军[2] 叶凯[2] 

机构地区：[1]广东电网公司电力科学研究院环保所,广州510080 [2]武汉大学资源与环境科学学院,武汉430079

出　　处：《环境工程学报》2014年第2期641-646,共6页Chinese Journal of Environmental Engineering

基　　金：南方电网科技项目(K-GD2012-360)

摘　　要：采用钴-钛层柱粘土催化剂,向烟气中添加HCl气体进行零价汞的催化脱除实验研究。考察了反应温度及催化剂的焙烧温度、Ti/粘土、活性组分(Co)负载量等制备条件对零价汞催化脱除效果的影响。研究表明,在HCl含量20×10-6的模拟烟气中,焙烧温度为400℃、Ti/粘土为15 mmol/g、Co含量为5 wt%(以CoO计)的钴钛层柱粘土催化剂(Co-TiPILCs)在空速为1.0×104h-1、温度为300℃时零价汞脱除效率为86.7%。An experimental study for the elemental mercury removal by Co-Ti-pillared clays catalysts was conducted in flue gas with the addition of HCl. Reaction temperature, preparing condition including calcination temperature, Ti/clay ratio and metal （Co） loading were investigated for the elemental mercury removal rate of catalysts. The result showed that a meeury removal rate of 86.7% was achieved using the Co-Ti-pillared clays catalysts with Ti/clay ratio of 15 mmol/g, metal loading of 5 % （CoO） , calcined at 400℃ under the space veloc- ity of 1.0 × 10^4 h -1 and reaction temperature of 300℃.

关 键 词：零价汞 燃煤烟气 钛层柱粘土 钴氧化物 催化脱除 

分 类 号：X511[环境科学与工程—环境工程]