Study on the structural evolution and heat transfer performance of Cu supported on regular morphology CeO2 in CO catalytic combustion and chemical looping combustion

doi:10.1016/j.jclepro.2023.138038

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Study on the structural evolution and heat transfer performance of Cu supported on regular morphology CeO2 in CO catalytic combustion and chemical looping combustion
	Huang JQ(黄俊钦); Liu H(刘欢); Zhang CH(张晨航); Bin F(宾峰); Wei XL(魏小林); Kang RN(康润宁); Wu, Shaohua
刊名	JOURNAL OF CLEANER PRODUCTION
	2023-09-10
卷号	417 页码:138038
关键词	Carbon monoxide Catalytic combustion Chemical looping combustion Energy conservation Cu CeO2
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2023.138038
英文摘要	Chemical looping combustion (CLC) and catalytic combustion (CC), which are potential technologies to promote CO & RARR;CO2 efficient conversion and energy conservation for the steelmaking off-gas, are investigated in reaction activity, structure evolution catalysts/oxygen carriers (OCs) and energy recovery using Cu/CeO2 materials. Activity results suggest that the rod-shaped samples with well-defined (100) crystal faces exhibit higher activity than the sphere-shaped samples with (111) crystal faces, obtaining the optimized copper content of 3 wt%. IR spectra confirmed the proposed reaction pathway that the CO adsorbed on copper sites (Cu+-CO) at the Cu-Ce interface reacts with adjacent surface lattice oxygen. The gaseous oxygen continuously migrates to the external surface of materials, thus resulting in strongly exothermic CO self-sustained combustion during CC. Such a violent reaction does not cause obvious evolution of chemical composition, crystalline phase and structure. Since the active lattice oxygen is gradually consumed but not replenished by external gaseous O2 in time, CO combustion is not self-sustained during CLC. Therefore, the reduction cycle is no longer confined to the surface of the material but penetrates deep into its body, which accelerates Cu+ enrichment at the surface and leads to irreversible sintering and agglomeration of the material.
分类号	一类
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:001049184400001
资助机构	National Natural Science Foundation of China [52176141]
其他责任者	Bin, F (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. ; Wu, SH (corresponding author), Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92582]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.{Huang, Junqin, Liu, Huan, Zhang, Chenhang, Bin, Feng, Wei, Xiaolin, Kang, Running} Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.{Huang, Junqin, Bin, Feng, Wei, Xiaolin, Kang, Running} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.{Wu, Shaohua} Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Huang JQ,Liu H,Zhang CH,et al. Study on the structural evolution and heat transfer performance of Cu supported on regular morphology CeO2 in CO catalytic combustion and chemical looping combustion[J]. JOURNAL OF CLEANER PRODUCTION,2023,417:138038.
APA	黄俊钦.,刘欢.,张晨航.,宾峰.,魏小林.,...&Wu, Shaohua.(2023).Study on the structural evolution and heat transfer performance of Cu supported on regular morphology CeO2 in CO catalytic combustion and chemical looping combustion.JOURNAL OF CLEANER PRODUCTION,417,138038.
MLA	黄俊钦,et al."Study on the structural evolution and heat transfer performance of Cu supported on regular morphology CeO2 in CO catalytic combustion and chemical looping combustion".JOURNAL OF CLEANER PRODUCTION 417(2023):138038.