Investigation of phases interactions and modification of drag models for liquid-solid fluidized bed tapered bioreactors

Koerich, Daniela M.; Lopes, Gabriela Cantarelli; Rosa, Leonardo Machado da

doi:10.1016/j.powtec.2018.07.102

Cited by 24 publications

(2 citation statements)

References 41 publications

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“…Li et al [34] proposed the hydrodynamic behavior of the liquid-solid fluidized bed coinciding with bed extension. Koerich et al [35] predicted particle fluidization, established the effects of lift and drag force, and used a drag model to assess them.…”

Section: Particle Separationmentioning

confidence: 99%

Two-Phase Liquid-Solid Hydrodynamics of Inclined Fluidized Beds

Ridha¹,

Al‐Abboodi²

2022

PEET

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Although many fluidized systems are not vertically oriented, little research has been done on fluidization within inclined channels. The fluidization of the gravitational force and the tensile force may be substantially opposing in the vertical system. The theory of gravitational field fluidization, which is related to industrial fluidization processes like coal gasification, iron ore reduction, and catalytic cracking and calls for the use of standing tubes or angled risers, has to be developed in order to encompass various orientations. Without underlying theories, engineers must rely on vertical fluidization equations to build these sloping systems. A significant barrier to improving the design and optimization of new solid circulation systems is the tendency of fluidization. Based on historical developments and theoretical progress, the study presents an overview of recent advancements of liquid-solid fluidized beds in inclined columns. The fluidized bed is investigated as a whole by looking at the governing factors.

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Section: Particle Separationmentioning

confidence: 99%

Two-Phase Liquid-Solid Hydrodynamics of Inclined Fluidized Beds

Ridha¹,

Al‐Abboodi²

2022

PEET

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“…The effects of operating conditions, such as liquid superficial velocity, particle properties, and fluidized bed structures on fluidization behaviors have been widely investigated in recent years [31][32][33][34][35]. It is also generally accepted that liquid-particle and particle-particle interactions play an important role in determining liquid-solid fluidization characteristics [36][37][38][39][40]. However, there is still limited research on heterogeneous fluidization phenomena [41,42].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Pressure Drop Characteristics and Flow Resistance Coefficient in a Fluidized Bed for Coal Particle Fluidization

et al. 2022

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Liquid–solid fluidized beds have a wide range of applications in metallurgical processing, mineral processing, extraction, and wastewater treatment. Great interest on their flow stability and heterogeneous fluidization behaviors has been aroused in research. In this study, various fluidization experiments were performed by adjusting the operating conditions of particle size, particle density, and liquid superficial velocity. For each case, the steady state of liquid–solid fluidization was obtained, and the bed expansion height and pressure drop characteristics were analyzed. The time evolution of pressure drop at different bed heights can truly reflect the liquid–solid heterogeneous fluidization behaviors that are determined by operating conditions. With the increase in superficial liquid velocity, three typical fluidization stages were observed. Accordingly, the flow resistance coefficient was obtained based on the experimental data of bed expansion height and pressure drop. The flow resistance coefficient experiences a decrease with the increase in the modified particle Reynolds number and densimetric Froude number.

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