CAS OpenIR
State-of-the-art hydrodynamics of gas-solid micro fluidized beds
Han, Zhennan1; Yue, Junrong2; Geng, Sulong2; Hu, Dandan1; Liu, Xuejing1; Suleiman, Sabo Bello1; Cui, Yanbin2; Bai, Dingrong1; Xu, Guangwen1,2
2021-03-15
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume232Pages:16
AbstractGas-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.
KeywordMicro fluidized bed MFB Micro fluidization Hydrodynamics Wall effect Gas back-mixing Fluidization regime
DOI10.1016/j.ces.2020.116345
Language英语
WOS KeywordREACTOR DIAMETER ; PRESSURE-DROP ; GASIFICATION ; BIOMASS
Funding ProjectMinistry 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 AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationMinistry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
WOS IDWOS:000608126700006
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43231
Collection中国科学院过程工程研究所
Corresponding AuthorBai, Dingrong; Xu, Guangwen
Affiliation1.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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