(1. 中南大學(xué) 冶金與環(huán)境學(xué)院，長沙 410083；
2. 武漢科技大學(xué) 國家環(huán)境保護礦冶資源利用與污染控制重點實驗室，武漢 430081；
3. 安徽工業(yè)大學(xué) 冶金減排與資源綜合利用教育部重點實驗室，馬鞍山 243002；
4. 永清環(huán)保股份有限公司，長沙 410001)
摘 要: 通過高溫固相法制備不同負載量的Fe-Mn/ETS-10催化劑，利用X射線衍射儀(XRD)、傅里葉紅外儀(IR)、掃描電子顯微鏡(SEM)、X射線光電子能譜分析(XPS)等對催化劑進行表征，考察了不同負載量對Mn-Fe/ETS-10形貌、結(jié)構(gòu)組成、以及選擇性催化還原(SCR)性能的影響。結(jié)果表明：Fe-Mn/ETS-10催化劑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脫硝性能。CO-SCR催化性能測試結(jié)果顯示，5%Fe-1%Mn/ETS-10在脫硝溫度300 ℃和400 ℃時脫硝率分別達到80%和85%；最佳的Fe-Mn/ETS-10催化劑負載比(5%Fe-1%Mn/ETS-10)可以提高SCR反應(yīng)的催化活性。
關(guān)鍵字: Fe-Mn催化劑；催化脫硝；CO-SCR催化性能；ETS-10分子篩
（1. School of Metallurgy and Environment, Central South University, Changsha 410083, China;
2. National Key Laboratory of Environmental Protection Mining and Metallurgy Resources Utilization and Pollution Control, Wuhan University of Science and Technology, Wuhan 430081, China;
3. Key Laboratory of Metallurgical Emission Reduction and Resources Recycling, Ministry of Education, Anhui University of Technology, Ma’anshan 243002, China;
4. Yongqing Environmental Protection Co., Ltd., Changsha 410001, China）
Abstract: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.
Key words: Fe-Mn catalyst; catalytic denitrification; CO-SCR catalyst property; ETS-10 Molecular sieve
