Fe-Mn/ETS-10催化剂制备及其CO-SCR的脱硝性能  

Preparation of Fe-Mn/ETS-10 catalyst and its CO-SCR denitrification performance

作　　者：付国友 何汉兵 张丽 马英 FU Guo-you;HE Han-bing;ZHANG Li;MA Ying(School of Metallurgy and Environment,Central South University,Changsha 410083,China;National Key Laboratory of Environmental Protection Mining and Metallurgy Resources Utilization and Pollution Control,Wuhan University of Science and Technology,Wuhan 430081,China;Key Laboratory of Metallurgical Emission Reduction and Resources Recycling,Ministry of Education,Anhui University of Technology,Ma’anshan 243002,China;Yongqing Environmental Protection Co.,Ltd.,Changsha 410001,China)

机构地区：[1]中南大学冶金与环境学院,长沙410083 [2]武汉科技大学国家环境保护矿冶资源利用与污染控制重点实验室,武汉430081 [3]安徽工业大学冶金减排与资源综合利用教育部重点实验室,马鞍山243002 [4]永清环保股份有限公司,长沙410001

出　　处：《中国有色金属学报》2020年第11期2616-2626,共11页The Chinese Journal of Nonferrous Metals

基　　金：湖南省战略性新兴产业科技攻关与重大科技成果转化资助项目(2017GK4010);湖南省自然科学基金资助项目(2019JJ40378);国家环境保护矿冶资源利用与污染控制重点实验室开放基金课题资助项目(HB201908);安徽工业大学冶金减排与资源综合利用教育部重点实验室开放基金资助项目(JKF20-02)。

摘　　要：通过高温固相法制备不同负载量的Fe-Mn/ETS-10催化剂,利用X射线衍射仪(XRD)、傅里叶红外仪(IR)、扫描电子显微镜(SEM)、X射线光电子能谱分析(XPS)等对催化剂进行表征,考察了不同负载量对Mn-Fe/ETS-10形貌、结构组成、以及选择性催化还原(SCR)性能的影响。结果表明:Fe-Mn/ETS-10催化剂具有良好的均一性和分散性,并保持ETS-10原有形貌、晶型;5%Fe-1%Mn/ETS-10具有更多的活性位和更高的脱硝性能。CO-SCR催化性能测试结果显示,5%Fe-1%Mn/ETS-10在脱硝温度300℃和400℃时脱硝率分别达到80%和85%;最佳的Fe-Mn/ETS-10催化剂负载比(5%Fe-1%Mn/ETS-10)可以提高SCR反应的催化活性。Fe-Mn/ETS-10 catalysts with various compositions were synthesized by high temperature solid state reaction.These catalysts were characterized by X-ray diffractometry(XRD),Fourier transform infrared spectroscopy(IR),scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).The effect of different amounts of Fe-Mn/ETS-10 on the morphology,composition and the catalytic reduction performance was studied.The results show that Fe-Mn/ETS-10 has good uniformity and dispersion,the morphology and crystal structure of ETS-10 are kept.5%Fe-1%Mn/ETS-10 has more active sites and higher deNOx performance.The catalysts activity of CO-SCR results show that denitrification rates of 5%Fe-1%Mn/ETS-10 are 80%and 85%at 300℃and 400℃,respectively.So,it is concluded that an optimal Fe-Mn/ETS-10 catalyst support ratio(5%Fe-1%Mn/ETS-10)enhances the catalytic activity in the selective catalytic reduction reaction.

关 键 词：FE-MN催化剂 催化脱硝 CO-SCR催化性能 ETS-10分子筛 

分 类 号：TB333[一般工业技术—材料科学与工程]