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Experimental Investigation and Computational Fluid Dynamic Simulation of Hydrodynamics of Liquid–Solid Fluidized Beds. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6030037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The present study provides and examines an experimental and CFD simulation to predict and accurately quantify the individual phase holdup. The experimental findings demonstrated that the increase of solid beads has a significant influence on the (Umf), as comparatively small glass beads particles require a low (Umf) value, which tends to increase as the diameter of the beads increases. Besides that, the expansion ratio is proportional to the velocity of the liquid. Even though, the relationship becomes inversely proportional to the diameter of the beads. The liquid holdup was found to increase with increasing liquid velocity, however, the solid holdup decreased. The Eulerian–Eulerian granular multiphase flow technique was used to predict the overall performance of the liquid–solid fluidized beds (LSFBs). There was a good agreement between the experimental results and the dynamic properties of liquid–solid flows obtained from the CFD simulation, which will facilitate future simulation studies of liquid–solid fluidized beds. This work has further improved the understanding and knowledge of CFD simulation of such a system at different parameters. Furthermore, understanding the hydrodynamics features within the two-phase fluidization bed, as well as knowing the specific features, is essential for good system design, enabling the systems to perform more effectively.
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Mowla A, Ioannidis MA. Effect of particle wettability on the hydrodynamics of three-phase fluidized beds subject to foaming. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.06.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lane CD, Macchi A, Pjontek D, McKnight CA, Wiens J, Donaldson AA. Modeling the Fluid Dynamics of a Commercial Ebullated Bed Hydroprocessor. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02779] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chris D. Lane
- Department of Process Engineering and Applied Science, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Arturo Macchi
- Centre for Catalysis Research and Innovation, Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Dominic Pjontek
- Chemical and Biochemical Engineering Department, Western University, London, Ontario N6A 5B9, Canada
| | - Craig A. McKnight
- Syncrude Canada Limited, 9421-17 Avenue, Edmonton, Alberta T6N 1H4, Canada
| | - Jason Wiens
- Syncrude Canada Limited, 9421-17 Avenue, Edmonton, Alberta T6N 1H4, Canada
| | - Adam A. Donaldson
- Department of Process Engineering and Applied Science, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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Parisien V, Pjontek D, McKnight CA, Wiens J, Macchi A. Impact of catalyst density distribution on the fluid dynamics of an ebullated bed operating at high gas holdup conditions. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mowla A, Treeratanaphitak T, Budman HM, Abukhdeir NM, Ioannidis MA. A meta-analysis of empirical correlations for average gas hold-up in three-phase fluidized beds. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pan H, Chen XZ, Liang XF, Zhu LT, Luo ZH. CFD simulations of gas–liquid–solid flow in fluidized bed reactors — A review. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.05.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pjontek D, McKnight CA, Wiens J, Macchi A. Ebullated bed fluid dynamics relevant to industrial hydroprocessing. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Particle agglomeration in gas-liquid-solid fluidized beds with a dispersed immiscible liquid: Study on particle size, shape and material. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bubble characteristics measured using a monofibre optical probe in a bubble column and freeboard region under high gas holdup conditions. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2014.02.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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