Knowledge Management System Of Institute of process engineering,CAS
| Multifluid modeling of coal pyrolysis in a coupled downer-hopper reactor | |
Li, Shuyue1,3; Shu, Zhan1,2; Wang, Junwu1,2
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| 2021-10-01 | |
| Source Publication | JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
 |
| ISSN | 0165-2370 |
| Volume | 159Pages:16 |
| Abstract | In the coal pyrolysis process, the diameter of particles normally changes with the process of reaction, which not only affects the hydrodynamic behavior but also influences the heat generation and yield of the products. However, most of the previous simulation work assumes a constant diameter in the model, which may disobey the law of mass conservation at the particle scale. In this work, a multifluid framework is developed to simulate the coal pyrolysis in a coupled downer-hopper reactor. The advanced kinetic theory for particulate phase stress and particle-particle drag force, the cluster behavior modified gas-particle drag force and gas-particle heat transfer have been considered in the present study. Based on the default constant particle diameter model, the expression of coal particle size and density changing with the reaction process is derived according to the mass conservation of a single particle. Results show that the flow and reaction characteristics, including the particle density and velocity distribution, temperature behavior, pyrolysis rate and yield are significantly affected by the variable particle diameter. |
| Keyword | Coal pyrolysis variable particle diameter Multifluid model CFD |
| DOI | 10.1016/j.jaap.2021.105335 |
| Language | 英语 |
| WOS Keyword | GAS-SOLID FLOW ; BIOMASS FAST PYROLYSIS ; HEAT-TRANSFER ; PARTICLE SHRINKAGE ; EVOLUTION ; COMBUSTION ; SIMULATION |
| Funding Project | National Natural Science Foundation of China[21908223] ; National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[21978295] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A13] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-JSC029] ; "Transformational Technologies for Clean Energy and Demonstration," Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030700] |
| WOS Research Area | Chemistry ; Energy & Fuels ; Engineering |
| WOS Subject | Chemistry, Analytical ; Energy & Fuels ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; "Transformational Technologies for Clean Energy and Demonstration," Strategic Priority Research Program of the Chinese Academy of Sciences |
| WOS ID | WOS:000711638400002 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/50767 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Junwu |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia |
| Recommended Citation GB/T 7714 | Li, Shuyue,Shu, Zhan,Wang, Junwu. Multifluid modeling of coal pyrolysis in a coupled downer-hopper reactor[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2021,159:16. |
| APA | Li, Shuyue,Shu, Zhan,&Wang, Junwu.(2021).Multifluid modeling of coal pyrolysis in a coupled downer-hopper reactor.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,159,16. |
| MLA | Li, Shuyue,et al."Multifluid modeling of coal pyrolysis in a coupled downer-hopper reactor".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 159(2021):16. |
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