QQ客服 官方微博 反馈留言

	Influence of calcination temperature on iron titanate catalyst for the selective catalytic reduction of NOx with NH3
	Liu, Fudong; Asakura, Kiyotaka; He, Hong; Liu, Yongchun; Shan, Wenpo; Shi, Xiaoyan; Zhang, Changbin
	2011
会议名称	1st Joint International Conference of the 8th Tokyo Conference on Advanced Catalytic Science and Technology/5th Asia Pacific Congress on Catalysis
会议日期	JUL 18-23, 2010
会议地点	Sapporo, JAPAN
关键词	Selective catalytic reduction Iron titanate catalyst Calcination temperature Intrinsic SCR activity Thermal stability
英文摘要	The influence of calcination temperature on the microstructure, redox behavior, reactant adsorption capability and catalytic activity of iron titanate catalyst (FeTiOx) for the selective catalytic reduction (SCR) of NOx with NH3 was investigated in detail using various characterization methods. After high temperature calcination (above 600 degrees C), the apparent SCR activity of FeTiOx catalyst obviously decreased, which was mainly due to decrease of surface area, pore volume, mobility of lattice oxygen and reactant adsorption capability. However, well crystallized pseudobrookite Fe2TiO5 showed much higher intrinsic SCR activity after normalization by surface area. This is mainly owing to the formation of larger proportion of monodentate nitrate, which is the real reactive nitrate species in the NOx reduction process, among total nitrate species on the surface of FeTiOx catalysts with higher crystallization degree. This implies a possibility that the FeTiOx catalyst after high temperature calcination (600 or 700 degrees C) with higher thermal stability could be loaded onto porous support with large surface area to further improve its dispersion and thus the apparent SCR activity for practical use, such as the DeNO(x) process for diesel engines. (C) 2010 Elsevier B. V. All rights reserved.
ISBN号	0920-5861
WOS记录号	WOS:000289716300093
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24621]
专题	生态环境研究中心_大气环境科学实验室
推荐引用方式 GB/T 7714	Liu, Fudong,Asakura, Kiyotaka,He, Hong,et al. Influence of calcination temperature on iron titanate catalyst for the selective catalytic reduction of NOx with NH3[C]. 见:1st Joint International Conference of the 8th Tokyo Conference on Advanced Catalytic Science and Technology/5th Asia Pacific Congress on Catalysis. Sapporo, JAPAN. JUL 18-23, 2010.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。