Reaction performance of Ce-enhanced hematite oxygen carrier in chemical looping reforming of biomass pyrolyzed gas coupled with CO2 splitting

doi:10.1016/j.energy.2020.119044

	Reaction performance of Ce-enhanced hematite oxygen carrier in chemical looping reforming of biomass pyrolyzed gas coupled with CO2 splitting
	Wei, Guoqiang 1,2; Zhou, Huan 1,2; Huang, Zhen 2; Zheng, Anqing 2; Zhao, Kun 2; Lin, Yan 2; Chang, Guozhang 4; Zhao, Zengli 2; Li, Haibin 2; Fang, Yitian 3
刊名	ENERGY
	2021-01-15
卷号	215 页码:10
关键词	Biomass pyrolyzed gases Oxygen carrier FeCeO3 Chemical looping reforming CO2 splitting
ISSN号	0360-5442
DOI	10.1016/j.energy.2020.119044
通讯作者	Huang, Zhen(huangzhen@ms.giec.ac.cn) ; Zheng, Anqing(zhengaq@ms.giec.ac.cn)
英文摘要	Hematite enhanced by CeO2 were investigated in chemical looping reforming (CLR) coupled with CO2 splitting to achieve high quality synthesis gas and recycle CO2 into CO. CeO2, Fe2O3 and CeFeO3 solid solution generated from integration of Fe3+ and CeO2 lattice were detected in mixed oxygen carriers as major components. Owing to the charge compensation and oxygen defects formation in lattice rearrangement, CeFeO3 solid solution contributed to promoting oxygen mobility and creating oxygen vacancies. Fe2O3 particles helped provide oxygen spillover pathway from subsurface to surface and improve lattice oxygen transfer through direct contact with the surface of CeFeO3 solid solution. CeO2 enhanced metallic interaction and catalytic oxidation reactivity. The highest gas product amount and H-2/CO in CLR process increased by 43.46% and 51.31%, respectively. Also, the instantaneous CO productivity of 2.47 mmol/min/g with 86.13% CO2 conversion was realized in CO2 splitting. Reaction parameters including temperature, CeO2 content and MCO2/mOC indicated positive correlation with CO productivity. The mixed oxygen carrier maintained its reactivity and stability after 15 cycles reaction following the pathway of Ce2O3/Fe2O3/CeFeO3/Ce2O3/Fe/CeFeO3/CeO2/Fe3O4, though sintering behavior was observed in reacted sample. FeeCe interactions and oxygen mobility were improved by successive redox reactions, which can offset the negative effects of sintering. (C) 2020 Published by Elsevier Ltd.
资助项目	DNL Cooperation Fund, Chinese Academy of Sciences[DNL180205] ; National Key Research and Development Program of China[2016YFB0901401] ; Natural Science Foundation of Guangdong Province[2018A0303130012] ; Science & Technology Research Project of Guangdong Province[2017A020216009] ; Science & Technology Project of Guangzhou[201707010202] ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering[2020-KF-04]
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000596833000006
资助机构	DNL Cooperation Fund, Chinese Academy of Sciences ; National Key Research and Development Program of China ; Natural Science Foundation of Guangdong Province ; Science & Technology Research Project of Guangdong Province ; Science & Technology Project of Guangzhou ; 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/344007/32492]
专题	中国科学院广州能源研究所
通讯作者	Huang, Zhen; Zheng, Anqing
作者单位	1.Taiyuan Univ Technol, Training Base State Key Lab Coal Sci & Technol Jo, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, CAS, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 4.Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Wei, Guoqiang,Zhou, Huan,Huang, Zhen,et al. Reaction performance of Ce-enhanced hematite oxygen carrier in chemical looping reforming of biomass pyrolyzed gas coupled with CO2 splitting[J]. ENERGY,2021,215:10.
APA	Wei, Guoqiang.,Zhou, Huan.,Huang, Zhen.,Zheng, Anqing.,Zhao, Kun.,...&Fang, Yitian.(2021).Reaction performance of Ce-enhanced hematite oxygen carrier in chemical looping reforming of biomass pyrolyzed gas coupled with CO2 splitting.ENERGY,215,10.
MLA	Wei, Guoqiang,et al."Reaction performance of Ce-enhanced hematite oxygen carrier in chemical looping reforming of biomass pyrolyzed gas coupled with CO2 splitting".ENERGY 215(2021):10.