Characterization of aerogel Ni/Al2O3 catalysts and investigation on their stability for CH4-CO2 reforming in a fluidized bed

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	Characterization of aerogel Ni/Al2O3 catalysts and investigation on their stability for CH4-CO2 reforming in a fluidized bed
	Hao, Zhigang 1,2,3; Zhu, Qingshan 1; Jiang, Zheng 1; Hou, Baolin 1,2; Li, Hongzhong 1
刊名	FUEL PROCESSING TECHNOLOGY
	2009
卷号	90 期号:1 页码:113-121
关键词	CH4-CO2 reforming Aerogel Ni/Al2O3 catalyst Fluidized bed Carbon deposition
ISSN号	0378-3820
通讯作者	Zhu, QS
英文摘要	The CH4-CO2 reforming was investigated in a fluidized bed reactor using nano-sized aerogel Ni/Al2O3 catalysts, which were prepared via a sol-gel method combined with a supercritical drying process. The catalysts were characterized with BET, XRD, H-2-TPR and H-2-TPD techniques. Compared with the impregnation catalyst, aerogel catalysts exhibited higher specific surface areas, lower bulk density, smaller Ni particle sizes, stronger metal-support interaction and higher Ni dispersion degrees. All tested aerogel catalysts showed better catalytic activities and stability than the impregnation catalyst. Their catalytic stability tested during 48 h reforming was dependent on their Ni loadings. Characterizations of spent catalysts indicated that only limited graphitic carbon formed on the aerogel catalyst, while massive graphitic carbon with filamentous morphology was observed for the impregnation catalyst, leading to significant catalytic activity degradation. An aerogel catalyst containing 10% Ni showed the best catalytic stability and the lowest rate of carbon deposition among the aerogel catalysts due to its small Ni particle size and strong metal-support interaction. (C) 2008 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Energy & Fuels ; Engineering
关键词[WOS]	PARTIAL OXIDATION ; FIXED-BED ; CARBON DEPOSITION ; MAGNETIC-FIELD ; METHANE ; CO2 ; CH4 ; PARTICLES ; NI/SIO2 ; REACTOR
收录类别	SCI
语种	英语
WOS记录号	WOS:000262206800012
公开日期	2013-12-11
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/6776]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.China Natl Bluestar Grp Corp, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Hao, Zhigang,Zhu, Qingshan,Jiang, Zheng,et al. Characterization of aerogel Ni/Al2O3 catalysts and investigation on their stability for CH4-CO2 reforming in a fluidized bed[J]. FUEL PROCESSING TECHNOLOGY,2009,90(1):113-121.
APA	Hao, Zhigang,Zhu, Qingshan,Jiang, Zheng,Hou, Baolin,&Li, Hongzhong.(2009).Characterization of aerogel Ni/Al2O3 catalysts and investigation on their stability for CH4-CO2 reforming in a fluidized bed.FUEL PROCESSING TECHNOLOGY,90(1),113-121.
MLA	Hao, Zhigang,et al."Characterization of aerogel Ni/Al2O3 catalysts and investigation on their stability for CH4-CO2 reforming in a fluidized bed".FUEL PROCESSING TECHNOLOGY 90.1(2009):113-121.