| 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
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| Source Publication | JOURNAL OF CLEANER PRODUCTION
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| 2023-09-10 | |
| Volume | 417Pages:138038 |
| ISSN | 0959-6526 |
| Abstract | 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. |
| Keyword | Carbon monoxide Catalytic combustion Chemical looping combustion Energy conservation Cu CeO2 |
| DOI | 10.1016/j.jclepro.2023.138038 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001049184400001 |
| WOS Research Area | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences |
| Funding Organization | National Natural Science Foundation of China [52176141] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | 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. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92582 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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. |
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| Jp2023Fa161.pdf（5221KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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