Silica Modified Alumina As Supports of Fe2O3 with High Performance in Chemical Looping Combustion of Methane

doi:10.1021/acssuschemeng.8b02262

	Silica Modified Alumina As Supports of Fe2O3 with High Performance in Chemical Looping Combustion of Methane
	Wang, Guijin 3; Kang, Yu 1,3; Tian, Ming 3; Wang, Yuehan 3; Wang, Yintong 3; Huang, Chuande 3; Zhu, Yanyan 2; Li, Lin 3; Wang, Xiaodong 3
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2018-10-01
卷号	6 期号:10 页码:12884-12892
关键词	Chemical looping combustion Conversion of CH4 Fe2O3/Al2O3 oxygen carrier Dispersion of iron oxides FeAl2O4
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b02262
通讯作者	Tian, Ming(tm1982@dicp.ac.cn) ; Wang, Xiaodong(xdwang@dicp.ac.cn)
英文摘要	Fe2O3/Al2O3 oxygen carriers (OCs) are considered to be promising due to their high reactivity in chemical looping combustion (CLC). However, iron species and supports suffered from severe sintering, leading to the deactivation of this OC during multiple redox reaction. In this work, a series of silica modified alumina were used as supports of Fe2O3 and found that the OC with the addition of 5% Si (Si-5) exhibited the highest performance for CLC of CH4 during 60 redox cycles. Si was discovered to be incorporated into Al rich coordination environment and the formed Si-O-Al structure inhibited phase transformation of gamma-Al2O3 to alpha-Al2O3, which stabilized the support with high specific surface area. This led to the best dispersion of iron oxides during reaction (77%), confirmed by the formation of the highly dispersed epsilon-Fe2O3 phase identified in the reaction, which resulted in the largest amount of active FeAl2O4 (47%) in the reduction step.
资助项目	National Science Foundation of China (NSFC)[21406225] ; National Science Foundation of China (NSFC)[21573232] ; National Science Foundation of China (NSFC)[21676269] ; National Science Foundation of China (NSFC)[21706254] ; Postdoctoral Science Foundation of China[2014M561261]
WOS关键词	OXYGEN CARRIERS ; IRON-OXIDE ; CO2 CAPTURE ; STRUCTURAL EVOLUTION ; FE ; EPSILON-FE2O3 ; CONVERSION ; NI ; FE2O3/AL2O3 ; STABILITY
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000446413100036
资助机构	National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166818]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Tian, Ming; Wang, Xiaodong
作者单位	1.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China 2.Northwest Univ, Coll Chem Engn, 229 Taibaibei Rd, Xian 710069, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wang, Guijin,Kang, Yu,Tian, Ming,et al. Silica Modified Alumina As Supports of Fe2O3 with High Performance in Chemical Looping Combustion of Methane[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(10):12884-12892.
APA	Wang, Guijin.,Kang, Yu.,Tian, Ming.,Wang, Yuehan.,Wang, Yintong.,...&Wang, Xiaodong.(2018).Silica Modified Alumina As Supports of Fe2O3 with High Performance in Chemical Looping Combustion of Methane.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(10),12884-12892.
MLA	Wang, Guijin,et al."Silica Modified Alumina As Supports of Fe2O3 with High Performance in Chemical Looping Combustion of Methane".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.10(2018):12884-12892.