A modified wake model in bubble-induced three-phase inverse fluidized bed (BIFB)--颗粒学报PARTICUOLOGY

Ma, K., Sun, X., Shao, Y., & Zhu, J. (2022). A modified wake model in bubble-induced three-phase inverse fluidized bed (BIFB). Particuology, 65, 133-138. https://doi.org/10.1016/j.partic.2021.07.007

A modified wake model in bubble-induced three-phase inverse fluidized bed (BIFB)

Keying Ma ^{a b}, Xiliang Sun^b, Yuanyuan Shao ^a *, Jesse Zhu ^{a b *}

a Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering of Technology, Tianjin University, Tianjin 300072, China
b Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario, N6A 3K7, Canada

10.1016/j.partic.2021.07.007

Volume 65, June 2022, Pages 133-138

Received 16 March 2021, Revised 25 June 2021, Accepted 23 July 2021, Available online 26 August 2021, Version of Record 22 October 2021.

E-mail: yshao@tju.edu.cn; jzhu@uwo.ca

Highlights

• Generalized wake model of Bhatia and Epstein is modified to model BIFB.

• A newly developed bubble-induced inverse fluidized bed is successfully modeled.

• Solids or liquid holdups can be fully predicted by the newly modified model.

• Richardson Zaki equation also applies in the inverse liquid–solid fluidized region.

Abstract

A modified wake model was proposed for the newly developed bubble-induced three-phase inverse fluidized bed (BIFB), by combining the generalized wake model and the gas-perturbed liquid model. On the basis of the modified wake model, the solids and liquid holdups and the complete fluidization gas velocity in BIFB system have been successfully predicted with two established correlations. The predictions achieved very good agreements with the experimental data.

Graphical abstract

Keywords

Generalized wake model; Solids holdup; Liquid holdup; Complete fluidization gas velocity

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