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

doi:10.1016/j.ces.2020.116345

	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
刊名	CHEMICAL ENGINEERING SCIENCE
	2021-03-15
卷号	232 页码:16
关键词	Micro fluidized bed MFB Micro fluidization Hydrodynamics Wall effect Gas back-mixing Fluidization regime
ISSN号	0009-2509
DOI	10.1016/j.ces.2020.116345
英文摘要	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.
资助项目	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关键词	REACTOR DIAMETER ; PRESSURE-DROP ; GASIFICATION ; BIOMASS
WOS研究方向	Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000608126700006
资助机构	Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43230]
专题	中国科学院过程工程研究所
通讯作者	Bai, Dingrong; Xu, Guangwen
作者单位	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
推荐引用方式 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.