QQ客服 官方微博 反馈留言

	Effect of calcination temperature on the reduction kinetics of iron-based fischer-tropsch catalyst
	Wang Hong1,2; Yang Yong1; Wu Baoshan1; Xu Jian1; Wang Hulin1,2; Ding Mingyue1,2; Xiang Hongwei1; Li Yongwang1
刊名	Chinese journal of catalysis
	2009-11-01
卷号	30期号:11页码:1101-1108
关键词	Fischer-tropsch synthesis Iron-based catalyst Calcination temperature Reduction kinetics Apparent activation energy
ISSN号	0253-9837
通讯作者	Wang hong()
英文摘要	A typical iron-based fischer-tropsch catalyst was prepared by the combination of precipitation and spray drying. the catalyst was then calcined at different temperatures. the textural properties and the crystal structure of the calcined catalyst samples were characterized by n(2) adsorption and mossbauer effect spectroscopy, respectively. the thermogravimetric analysis was employed to follow the reduction process of the catalysts. the experimental data were then regressed using gas-solid reaction models. the results indicated that the reduction process of the catalysts calcined at 300-600 degrees c could be described by the same models. the reduction of alpha-fe(2)o(3) to fe(3)o(4) was regressed by the 1-dimentional formation and growth of nuclei model, and the reduction of fe(3)o(4) to alpha-fe was controlled by the 2-dimentional formation and growth of nuclei model. the reduction of the catalyst calcined at 700 degrees c was influenced by both the formation and growth of nuclei model and the shrinking core model. with the increase of the calcination temperature, the reduction capability of the catalysts decreased and the apparent activation energy increased, being due to the increase of the crystal size and the decrease of the lattice defects in the catalysts.
WOS关键词	ACTIVATION ; PARTICLES ; OXIDES ; H-2
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000272577400006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2402297
专题	中国科学院大学
通讯作者	Wang Hong
作者单位	1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang Hong,Yang Yong,Wu Baoshan,et al. Effect of calcination temperature on the reduction kinetics of iron-based fischer-tropsch catalyst[J]. Chinese journal of catalysis,2009,30(11):1101-1108.
APA	Wang Hong.,Yang Yong.,Wu Baoshan.,Xu Jian.,Wang Hulin.,...&Li Yongwang.(2009).Effect of calcination temperature on the reduction kinetics of iron-based fischer-tropsch catalyst.Chinese journal of catalysis,30(11),1101-1108.
MLA	Wang Hong,et al."Effect of calcination temperature on the reduction kinetics of iron-based fischer-tropsch catalyst".Chinese journal of catalysis 30.11(2009):1101-1108.

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。