Mn-Ce改性活性焦催化剂低温SCR性能  

Mn-Ce modified activated coke(AC) catalyst for desulfurization and denitration at low-temperature

作　　者：谭月[1,2] 杨柳[1,2] 盛重义[1,2] 周爱奕 单云霞[1,2] 胡宇峰 

机构地区：[1]南京师范大学环境科学与工程系,南京210023 [2]江苏省物质循环与污染控制重点实验室,南京210023 [3]国电科学技术研究院,南京210031

出　　处：《环境工程学报》2015年第11期5515-5520,共6页Chinese Journal of Environmental Engineering

基　　金：国家"863"高技术研究发展计划项目(2013AA065401)

摘　　要：采用等体积浸渍法制备Mn-Ce/活性焦催化剂,用于烟气的脱硝。研究发现,Mn-Ce负载量为8%的活性焦催化剂具有较好的脱硝性能,在120℃下脱硝效率达87%。通过BET、FTIR及XPS表征发现,活性焦在负载8%Mn-Ce后比表面积、孔容、孔径都有所提高,而且催化剂表面化学性质发生了改变,催化剂的活化中心由官能团转向金属氧化物。The Mn-Ce / AC catalysts were synthesized through an impregnation method,used for low-temperature selective catalytic reduction of NOxby NH3. The experimental results showed that NOxconversion could be improved by doping 8% Mn-Ce to 87% at 120℃. Physical chemistry properties of the catalysts were characterized by Brunauer-Emmett-Teller method（ BET）,X-ray photoelectron spectroscopy（ XPS） and Fourier transform infrared spectroscopy（ FTIR）. It indicated that the surface area,pore size and pore volume were improved after loading 8% Mn-Ce. And the surface chemical properties of Mn-Ce / AC also changed. The active center of Mn-Ce / AC catalysts transformed from the AC surface functional group to metal oxide.

关 键 词：催化剂 改性 脱硝 活性焦 

分 类 号：X701[环境科学与工程—环境工程]