Effects of hydrophilic particles on bubbly flow in slurry bubble column

Ojima, Shimpei; Hayashi, Kosuke; Tomiyama, Akio

doi:10.1016/j.ijmultiphaseflow.2013.09.005

Cited by 51 publications

(49 citation statements)

References 43 publications

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“…B) A solid‐effect multiplier is introduced. The multiplier β accounts for the promotion of coalescence due to the presence of small solid particles and is considered in the expression for the coalescence efficiency , :

true λ_{normalc}^{normalse} = \exp (- \frac{β t_{ij}}{τ_{ij}})

…”

Section: Three‐phase Systemsmentioning

confidence: 99%

Models for the Numerical Simulation of Bubble Columns: A Review

Mühlbauer

Hlawitschka

Bart

2019

Chemie Ingenieur Technik

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This work reviews the state‐of‐the‐art models for the simulation of bubble columns and focuses on methods coupled with computational fluid dynamics (CFD) where the potential and deficits of the models are evaluated. Particular attention is paid to different approaches in multiphase fluid dynamics including the population balance to determine bubble size distributions and the modeling of turbulence where the authors refer to numerous published examples. Additional models for reactive systems are presented as well as a special chapter regarding the extension of the models for the simulation of bubble columns with a present solid particle phase, i.e., slurry bubble columns.

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true λ_{normalc}^{normalse} = \exp (- \frac{β t_{ij}}{τ_{ij}})

…”

Section: Three‐phase Systemsmentioning

confidence: 99%

Models for the Numerical Simulation of Bubble Columns: A Review

Mühlbauer

Hlawitschka

Bart

2019

Chemie Ingenieur Technik

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“…The simulation results were compared with the experimental data of Ojima et al. , as illustrated in Fig. .…”

Section: Resultsmentioning

confidence: 99%

“…the work of Ojima et al. were used to fit the formula as indicated in Eq.

true \frac{d_{normalb} *}{d_{normalb}} = 1 + 1.4943 C_{normals}

…”

Section: Mathematical Modelmentioning

confidence: 99%

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Population Balance Model Simulation of the Particle Effect on Flow Hydrodynamics in Slurry Beds

Shi

et al. 2019

Chem Eng & Technol

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Computational fluid dynamics (CFD) simulation can provide in‐depth knowledge on hydrodynamics in slurry‐bed reactors. The accuracy of CFD simulation is highly depending on the description of the interactions between gas phase and slurry phase with the drag model. Conventional drag models were usually developed for gas‐liquid systems without considering the presence of particles in slurry‐bed reactors. A modified drag model is proposed by taking into account the effect of particles. Simulation results proved the accuracy of the model in predicting hydrodynamics in the slurry bed. A higher particle concentration can increase the gas velocity and decrease the gas holdup due to the lower drag force between gas phase and slurry phase. The bubble size is predicted to be larger at higher particle concentrations due to the increased liquid eddy length scale. Considering the particle effect is critical for accurately simulating slurry‐bed reactors.

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“…Three-phase bubble columns are extensively used in petrochemicals, chemical and the processes of hydrogenation, chlorination, oxidation, hydroformylation, bioremediation and cell growth [1][2][3] and also play an significant role in all types of gas conversion processes, such as direct or indirect coal to liquid processes, and Fischer-Tropsch synthesis [4][5][6]. The flow behaviors of a gas-liquid-solid three-phase flow in bubble columns are complex.…”

Section: Introductionmentioning

confidence: 99%

CFD simulation of hydrodynamics of gas–liquid–solid three-phase bubble column

Wang

2015

Powder Technology

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Effects of hydrophilic particles on bubbly flow in slurry bubble column

Cited by 51 publications

References 43 publications

Models for the Numerical Simulation of Bubble Columns: A Review

Models for the Numerical Simulation of Bubble Columns: A Review

Population Balance Model Simulation of the Particle Effect on Flow Hydrodynamics in Slurry Beds

CFD simulation of hydrodynamics of gas–liquid–solid three-phase bubble column

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