CFD intensification of coal beneficiation process in gas-solid fluidized beds

doi:10.1016/j.cep.2020.107825

	CFD intensification of coal beneficiation process in gas-solid fluidized beds
	Zhang, Yong 1,2; Jia, Ying 1; Xu, Ji 2; Wang, Junwu 2,3; Duan, Chenlong 1; Ge, Wei 2,3; Zhao, Yuemin 1
刊名	CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
	2020-02-01
卷号	148 页码:6
关键词	Coal beneficiation CFD simulation Process intensification Scale-up effect Gas distributor Fluidization
ISSN号	0255-2701
DOI	10.1016/j.cep.2020.107825
英文摘要	Coal beneficiation technology using gas-solid fluidized bed is a hot topic in recent decade, however its proper design and scale-up remain a great challenge due to the very complex gas-solid flow involved. To this end, an Eulerian-Lagrangian-Lagrangian (ELL) model (Zhang et al., Renewable Energy, 2019, 136:193-201) was used to intensify the coal beneficiation process, by systematically studying the effects of particle property, operating gas velocity, initial bed height, design of gas distributor and the size of fluidized bed. It was found that (i) coal beneficiation process can be improved significantly by using coarser beneficiated coal particles, adopting smaller initial bed height (or shallow fluidized bed) and/or operating at a properly selected gas velocity, all findings indicate that the process intensification can be realized via proper selection of operating conditions; (ii) the design of gas distributor was critical for process intensification and it should be designed properly to make the gas flow as uniform as possible; and (iii) there will be no scale-up effect, if ideally uniform gas flow at the inlet can be achieved. Present study demonstrates that computational fluid dynamics is a cost-effective tool for process intensification of gas-solid fluidized beds.
资助项目	China Postdoctoral Science Foundation[2019M660796] ; National Natural Science Foundation of China[21978295] ; National Natural Science Foundation of China[91834303] ; National Natural Science Foundation of China[U1903132] ; Key Research Program of Frontier Science, Chinese Academy of Sciences[QYZDJ-SSW-JSCO29] ; Key Research Program of Frontier Science, Chinese Academy of Sciences[XXH13506-301] ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030700]
WOS关键词	LOW-ASH COAL ; PARTICLE METHOD ; NUMERICAL-SIMULATION ; BINARY-MIXTURES ; SEGREGATION ; SEPARATION ; MODEL ; SIZE ; FLOW ; OPTIMIZATION
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000518494400029
资助机构	China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, Chinese Academy of Sciences ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/39709]
专题	中国科学院过程工程研究所
通讯作者	Wang, Junwu; Duan, Chenlong
作者单位	1.China Univ Min & Technol, Minist Educ, Key Lab Coal Proc & Efficient Utilizat, Xuzhou 221116, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yong,Jia, Ying,Xu, Ji,et al. CFD intensification of coal beneficiation process in gas-solid fluidized beds[J]. CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION,2020,148:6.
APA	Zhang, Yong.,Jia, Ying.,Xu, Ji.,Wang, Junwu.,Duan, Chenlong.,...&Zhao, Yuemin.(2020).CFD intensification of coal beneficiation process in gas-solid fluidized beds.CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION,148,6.
MLA	Zhang, Yong,et al."CFD intensification of coal beneficiation process in gas-solid fluidized beds".CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION 148(2020):6.