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

	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
发表期刊	JOURNAL OF CLEANER PRODUCTION
	2023-09-10
卷号	417 页码:138038
ISSN	0959-6526
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.
关键词	Carbon monoxide Catalytic combustion Chemical looping combustion Energy conservation Cu CeO2
DOI	10.1016/j.jclepro.2023.138038
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001049184400001
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
项目资助者	National Natural Science Foundation of China [52176141]
论文分区	一类
力学所作者排名	1
RpAuthor	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.
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92582
专题	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.Rp_Au: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.
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.

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