Mn-Y_TiO2低温NH3选择性催化还原NO性能研究.pdf.pdf

第 31 卷第 35 期中国电机工程学报 , 2011 2011 年 12 月 15 日 Proceedings of the CSEE ?2011 . 1 文章编号: 0258-8013 (2011) 35-0001-06 中图分类号: X 511 文献标志码: A 学科分类号: 470 ? 20 Mn-Y/TiO 2 低温 NH 3 选择性催化还原 NO 性能研究张舒乐,刘晓肖,钟秦,姚瑶,李小海( 南京理工大学化工学院,江苏省南京市 210094) Catalytic Performance Research of Mn-Y/TiO 2 for Low-temperature Selective Reduction of NO With NH 3 ZHANG Shule, LIU Xiaoxiao, ZHONG Qin, YAO Yao, LI Xiaohai (School of Chemical Engineering, Na njing University of Science and T echnology, Nanjing 210094, Jiangsu Province , China) ABSTRACT: The performance of Y doped Mn/TiO 2 catalysts for low-temperature selective catalytic reduction (SCR) of NO with NH 3 was investigated. Y-doped TiO 2 support was prepared by sol-gel method, followed by impregnation for Mn oxides loading to form Mn-Y/TiO 2 catalyst. The effects of Y doping amount, the operating conditions such as temperature, oxygen content, NO concentration and space velocity factors, on the performance of catalytic reducti on of NO were studied. Then the catalyst structure was analyzed by X-ray diffraction (XRD). The results show that the optimal molar ratio of Y to Ti is %, XRD analyzed Y doping can restrain the transfer from anatase phase to rutile and the catalyst surface area is significantly increased, thereby increasi