NiO/kappa-CeZrO4 functional oxygen carriers with Ni delta+ and oxygen vacancy synergy for chemical looping partial oxidation reforming of methane

doi:10.1016/j.fuproc.2021.106875

	NiO/kappa-CeZrO4 functional oxygen carriers with Ni delta+ and oxygen vacancy synergy for chemical looping partial oxidation reforming of methane
	Zhang, Yu-ke 2,3,4; Zhao, Ying-jie 2,3; Yi, Qun 1,2; Wei, Guo-qiang 4; Shi, Li-juan 1,2; Zhou, Huan 4
刊名	FUEL PROCESSING TECHNOLOGY
	2021-08-01
卷号	219 页码:12
关键词	Methane Oxygen carrier kappa-CeZrO4 Partial oxidation reforming Chemical looping
ISSN号	0378-3820
DOI	10.1016/j.fuproc.2021.106875
通讯作者	Yi, Qun(yq20071001@163.com) ; Wei, Guo-qiang(weigq@ms.giec.ac.cn)
英文摘要	Chemical looping partial oxidation reforming (CLPOR) technology is an economically attractive, sustainable, and environmental-friendly process strategy of CH4 conversion. In this study, NiO-promoted kappa-CeZrO4 functional oxygen carriers (OCs) were designed and synthesized for the CLPOR of methane, with excellent lattice oxygen (LO) transmission performance and structural stability, aiming to reduce the energy penalty and temperature required for methane conversion. The crystalline phase, reaction performance, surface properties and reaction mechanism of the OC were systematically analyzed. In-situ CH4-oS analysis was further carried out to reveal the internal mechanism with NiO/kappa-CeZrO4 and the reason for higher CO selectivity at a low temperature. The methane conversion rate (>= 80%) and syngas selectivity (>= 93%) can be obtained under the most of reported reaction conditions (over 850 degrees C). More importantly, a higher methane conversion rate (52-72%) with syngas selectivity (88-92%) was even able to be achieved at a relative low temperature range 700-800 degrees C. The excellent performance was attributed to the reducing transmission temperature of the LO and a synergetic effect of Ni delta+ and the oxygen vacancies (existed on the surface), thereby inhibiting carbon deposition caused by the excessively fast methane cracking rate under high temperature atmosphere.
资助项目	National Key R&D Program of China[2018YFB0605404] ; National Natural Science Foundation of China[U1810125] ; National Natural Science Foundation of China[51776133] ; Key R&D Program of Shanxi Province[201903D121031] ; Natural Science Foundation of Guangdong Province[2018A0303130012] ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering[2020-KF-04]
WOS关键词	CATALYTIC PARTIAL OXIDATION ; SYNTHESIS GAS ; SYNGAS PRODUCTION ; MIXED OXIDES ; STEAM ; CONVERSION ; PHASE ; RH
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000661887100002
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Key R&D Program of Shanxi Province ; Natural Science Foundation of Guangdong Province ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33361]
专题	中国科学院广州能源研究所
通讯作者	Yi, Qun; Wei, Guo-qiang
作者单位	1.Wuhan Inst Technol, Sch Chem Engn & Pharm, Wuhan 430072, Peoples R China 2.Taiyuan Univ Technol, Coll Environm Sci & Engn, Taiyuan 030024, Peoples R China 3.Training Base State Key Lab Coal Sci & Technol Jo, Taiyuan 030024, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yu-ke,Zhao, Ying-jie,Yi, Qun,et al. NiO/kappa-CeZrO4 functional oxygen carriers with Ni delta+ and oxygen vacancy synergy for chemical looping partial oxidation reforming of methane[J]. FUEL PROCESSING TECHNOLOGY,2021,219:12.
APA	Zhang, Yu-ke,Zhao, Ying-jie,Yi, Qun,Wei, Guo-qiang,Shi, Li-juan,&Zhou, Huan.(2021).NiO/kappa-CeZrO4 functional oxygen carriers with Ni delta+ and oxygen vacancy synergy for chemical looping partial oxidation reforming of methane.FUEL PROCESSING TECHNOLOGY,219,12.
MLA	Zhang, Yu-ke,et al."NiO/kappa-CeZrO4 functional oxygen carriers with Ni delta+ and oxygen vacancy synergy for chemical looping partial oxidation reforming of methane".FUEL PROCESSING TECHNOLOGY 219(2021):12.