State-of-the-art hydrodynamics of gas-solid micro fluidized beds

doi:10.1016/j.ces.2020.116345

CAS OpenIR

	State-of-the-art hydrodynamics of gas-solid micro fluidized beds
	Han, Zhennan 1; Yue, Junrong 2; Geng, Sulong 2; Hu, Dandan 1; Liu, Xuejing 1; Suleiman, Sabo Bello 1; Cui, Yanbin 2; Bai, Dingrong 1; Xu, Guangwen 1,2
	2021-03-15
Source Publication	CHEMICAL ENGINEERING SCIENCE
ISSN	0009-2509
Volume	232 Pages:16
Abstract	Gas-solid micro fluidized beds have unique characteristics such as bed pressure drop overshoot, delayed minimum and bubbling/slugging but advanced turbulent fluidization, as well as negligible gas back mixing. The data covering a wide range of operating conditions reported by various researchers are summarized, and analyzed in an effort to gain in-depth understanding about these characteristics. Based on the analysis, an approximate quantitative criterion to distinguish micro and macro fluidized beds is proposed, and the boundaries between non-fluidizable and fluidizable zones are defined. In micro fluidized beds, gas-solid flow can be situated in particulate, bubbling, slugging and turbulent fluidization regimes based on superficial gas velocity, ratios of D-t/d(p) and H-s/D-t. Hydrodynamic characteristics of these flow regimes are discussed, and the correlations for U-mf, U-mb, U-ms, and U-c are developed based on analysis of experimental data. Finally, generalized fluidization maps applicable to micro fluidized beds are proposed based on the developed correlations. Through the analysis, some uncertainties and even contradictories among the reported data are identified, which would guild future studies to bring the micro fluidized bed technology forward. (C) 2020 Elsevier Ltd. All rights reserved.
Keyword	Micro fluidized bed MFB Micro fluidization Hydrodynamics Wall effect Gas back-mixing Fluidization regime
DOI	10.1016/j.ces.2020.116345
Language	英语
WOS Keyword	REACTOR DIAMETER ; PRESSURE-DROP ; GASIFICATION ; BIOMASS
Funding Project	Ministry of Science and Technology of the People's Republic of China[2011YQ120039] ; National Natural Science Foundation of China[21106156] ; Chinese Academy of Sciences[Y2005014]
WOS Research Area	Engineering
WOS Subject	Engineering, Chemical
Funding Organization	Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
WOS ID	WOS:000608126700006
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/43231
Collection	中国科学院过程工程研究所
Corresponding Author	Bai, Dingrong; Xu, Guangwen
Affiliation	1.Shenyang Univ Chem Technol, Key Lab Resources Chem & Mat, Minist Educ, Shenyang 110142, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation GB/T 7714	Han, Zhennan,Yue, Junrong,Geng, Sulong,et al. State-of-the-art hydrodynamics of gas-solid micro fluidized beds[J]. CHEMICAL ENGINEERING SCIENCE,2021,232:16.
APA	Han, Zhennan.,Yue, Junrong.,Geng, Sulong.,Hu, Dandan.,Liu, Xuejing.,...&Xu, Guangwen.(2021).State-of-the-art hydrodynamics of gas-solid micro fluidized beds.CHEMICAL ENGINEERING SCIENCE,232,16.
MLA	Han, Zhennan,et al."State-of-the-art hydrodynamics of gas-solid micro fluidized beds".CHEMICAL ENGINEERING SCIENCE 232(2021):16.

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