Transient response study of NO reduction with H-2 on Co4N/gamma-Al2O3 catalyst

doi:10.1007/s11144-013-0560-7

GIEC OpenIR > 中国科学院广州能源研究所

	Transient response study of NO reduction with H-2 on Co4N/gamma-Al2O3 catalyst
	Yao, Zhiwei 1,2; Zhang, Xiaohong 1
	2013-08-01
发表期刊	REACTION KINETICS MECHANISMS AND CATALYSIS
卷号	109 期号:2 页码:461-473
摘要	The reduction of NO with H-2 was studied with transient response experiments on a Co4N/gamma-Al2O3 catalyst. In 1 % NO/1 % H-2/He step-response on Co4N/gamma-Al2O3 catalyst at 300 A degrees C, there were three main stages, viz. initial state, steady state and deactivated state. NO reduction with H-2 generated N-2 and H2O as the main products and NH3 as the by-product during the steady state. Deactivation of the Co4N/gamma-Al2O3 catalyst was due to heavy accumulation of oxygen on the surface. In order to retain a steady-state NO dissociation, the formation of H2O on the catalyst surface was the most crucial step for the removal of surface oxygen, this depended on the NO:H-2 ratio and the reaction temperature. The results indicated that a NO:H-2 ratio of 1:5 and a reaction temperature of 600 A degrees C was determined to keep the Co4N/gamma-Al2O3 catalyst surface sites active for catalytic reduction of NO. Based on the experimental results, the mechanism of reduction of NO with H-2 on Co4N/gamma-Al2O3 catalyst was proposed.
文章类型	Article
关键词	Co4n/gamma-al2o3 No Dissociation No Reduction Reaction Mechanism Transient Experiments
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1007/s11144-013-0560-7
研究领域[WOS]	Chemistry
关键词[WOS]	NITRIDES ; HYDROGEN ; CO ; DECOMPOSITION ; DISSOCIATION
收录类别	SCI
语种	英语
WOS类目	Chemistry, Physical
WOS记录号	WOS:000321923200012
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/9123
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Dalian Univ Technol, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Yao, Zhiwei,Zhang, Xiaohong. Transient response study of NO reduction with H-2 on Co4N/gamma-Al2O3 catalyst[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2013,109(2):461-473.
APA	Yao, Zhiwei,&Zhang, Xiaohong.(2013).Transient response study of NO reduction with H-2 on Co4N/gamma-Al2O3 catalyst.REACTION KINETICS MECHANISMS AND CATALYSIS,109(2),461-473.
MLA	Yao, Zhiwei,et al."Transient response study of NO reduction with H-2 on Co4N/gamma-Al2O3 catalyst".REACTION KINETICS MECHANISMS AND CATALYSIS 109.2(2013):461-473.