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Effect of fluid viscosity on liquid-solid fluidization
Alternative TitleInd. Eng. Chem. Res.
Qiu, O; Li, HZ; Tong, H
2004-07-21
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume43Issue:15Pages:4434-4437
AbstractFour kinds of solid particles were fluidized and tested in aqueous solutions of glycerol ranging in viscosity from 7 to 1400 cP. Two trends in which the fluidization behavior of particles is significantly affected by fluid viscosity were observed, and a physical model was proposed based on these phenomena. On the one hand, increasing the fluid viscosity could decrease the bubble size, which results in smoother fluidization. On the other hand, because of the effect of the laminar layer, particle agglomeration could occur when the fluid viscosity is high enough, which results in heterogeneous behavior in the fluidized bed. At the critical point, these two trends balance each other, and the best fluid quality is observed. For all particles in this work, although the values of optimal viscosity are different, the values of the particle terminal Reynolds number are about 0.004 at the critical point.; Four kinds of solid particles were fluidized and tested in aqueous solutions of glycerol ranging in viscosity from 7 to 1400 cP. Two trends in which the fluidization behavior of particles is significantly affected by fluid viscosity were observed, and a physical model was proposed based on these phenomena. On the one hand, increasing the fluid viscosity could decrease the bubble size, which results in smoother fluidization. On the other hand, because of the effect of the laminar layer, particle agglomeration could occur when the fluid viscosity is high enough, which results in heterogeneous behavior in the fluidized bed. At the critical point, these two trends balance each other, and the best fluid quality is observed. For all particles in this work, although the values of optimal viscosity are different, the values of the particle terminal Reynolds number are about 0.004 at the critical point.
KeywordParticulate Spheres
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie034207n
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPARTICULATE ; SPHERES
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000222738000048
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/4920
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Multiphase React Lab, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Qiu, O,Li, HZ,Tong, H. Effect of fluid viscosity on liquid-solid fluidization[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2004,43(15):4434-4437.
APA Qiu, O,Li, HZ,&Tong, H.(2004).Effect of fluid viscosity on liquid-solid fluidization.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,43(15),4434-4437.
MLA Qiu, O,et al."Effect of fluid viscosity on liquid-solid fluidization".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 43.15(2004):4434-4437.
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