Hydrodynamic characteristics of bubble-induced three-phase inverse fluidized bed (BIFB)

Keying Ma; Xiliang Sun; Yuanyuan Shao; Mingyan Liu; Jesse Zhu

doi:10.1016/j.ces.2019.115177

Hydrodynamic characteristics of bubble-induced three-phase inverse fluidized bed (BIFB)

Keying Ma, Xiliang Sun, Yuanyuan Shao, Mingyan Liu, Jesse Zhu

Research output: Journal Publication › Article › peer-review

12 Citations (Scopus)

Abstract

A new bubble-induced three-phase inverse fluidized bed (BIFB) is proposed, where particles lighter than water are fluidized downwards by upward flowing gas without net liquid flow due to the reduced net gas-liquid mixture density and the turbulence caused by bubble flow. Key advantages include uniform fluidization of particles, zero or low liquid flowrate, low energy consumption and easy re-fluidization, showing great potential in biochemical, bioprocess, food, environmental and petrochemical industry. In a 0.33 m diameter pilot-scale BIFB column, four flow regimes; initial fluidization gas velocity and complete fluidization gas velocity were identified, using particles of different diameters and densities. A new concept, the fluidization ratio, is devised to best describe the fluidization quality in BIFB.

Original language	English
Article number	115177
Journal	Chemical Engineering Science
Volume	209
DOIs	https://doi.org/10.1016/j.ces.2019.115177
Publication status	Published - 14 Dec 2019
Externally published	Yes

Keywords

Flow regimes
Fluidization ratio
Hydrodynamic characteristics
Phase holdup
Three-phase inverse fluidized bed

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ces.2019.115177

Cite this

Ma, K., Sun, X., Shao, Y., Liu, M., & Zhu, J. (2019). Hydrodynamic characteristics of bubble-induced three-phase inverse fluidized bed (BIFB). Chemical Engineering Science, 209, Article 115177. https://doi.org/10.1016/j.ces.2019.115177

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abstract = "A new bubble-induced three-phase inverse fluidized bed (BIFB) is proposed, where particles lighter than water are fluidized downwards by upward flowing gas without net liquid flow due to the reduced net gas-liquid mixture density and the turbulence caused by bubble flow. Key advantages include uniform fluidization of particles, zero or low liquid flowrate, low energy consumption and easy re-fluidization, showing great potential in biochemical, bioprocess, food, environmental and petrochemical industry. In a 0.33 m diameter pilot-scale BIFB column, four flow regimes; initial fluidization gas velocity and complete fluidization gas velocity were identified, using particles of different diameters and densities. A new concept, the fluidization ratio, is devised to best describe the fluidization quality in BIFB.",

keywords = "Flow regimes, Fluidization ratio, Hydrodynamic characteristics, Phase holdup, Three-phase inverse fluidized bed",

author = "Keying Ma and Xiliang Sun and Yuanyuan Shao and Mingyan Liu and Jesse Zhu",

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doi = "10.1016/j.ces.2019.115177",

language = "English",

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AU - Ma, Keying

AU - Sun, Xiliang

AU - Shao, Yuanyuan

AU - Liu, Mingyan

AU - Zhu, Jesse

PY - 2019/12/14

Y1 - 2019/12/14

N2 - A new bubble-induced three-phase inverse fluidized bed (BIFB) is proposed, where particles lighter than water are fluidized downwards by upward flowing gas without net liquid flow due to the reduced net gas-liquid mixture density and the turbulence caused by bubble flow. Key advantages include uniform fluidization of particles, zero or low liquid flowrate, low energy consumption and easy re-fluidization, showing great potential in biochemical, bioprocess, food, environmental and petrochemical industry. In a 0.33 m diameter pilot-scale BIFB column, four flow regimes; initial fluidization gas velocity and complete fluidization gas velocity were identified, using particles of different diameters and densities. A new concept, the fluidization ratio, is devised to best describe the fluidization quality in BIFB.

AB - A new bubble-induced three-phase inverse fluidized bed (BIFB) is proposed, where particles lighter than water are fluidized downwards by upward flowing gas without net liquid flow due to the reduced net gas-liquid mixture density and the turbulence caused by bubble flow. Key advantages include uniform fluidization of particles, zero or low liquid flowrate, low energy consumption and easy re-fluidization, showing great potential in biochemical, bioprocess, food, environmental and petrochemical industry. In a 0.33 m diameter pilot-scale BIFB column, four flow regimes; initial fluidization gas velocity and complete fluidization gas velocity were identified, using particles of different diameters and densities. A new concept, the fluidization ratio, is devised to best describe the fluidization quality in BIFB.

KW - Flow regimes

KW - Fluidization ratio

KW - Hydrodynamic characteristics

KW - Phase holdup

KW - Three-phase inverse fluidized bed

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JF - Chemical Engineering Science

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Hydrodynamic characteristics of bubble-induced three-phase inverse fluidized bed (BIFB)

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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