Hydrocyclone performance for bentonite clay purification

Hydrocyclone performance for bentonite clay purification

[Display omitted] •Hydrocyclone performance for bentonite clay treatment is described.•CFD is used to optimize hydrocyclone performance.•The characteristic constant of a commercial hydrocyclone family is obtained.•A hydrocyclone scale-up study is performed via CFD. This work evaluates the performanc...

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Bibliographic Details
Published in:Chemical engineering research & design Vol. 161; pp. 168 - 177
Main Authors: Gama, A.J.A, Neves, G.A., Barros, P.L., Neto, A.T.P., Alves, J.J.N.
Format: Journal Article
Language:English
Published: Rugby Elsevier B.V 01-09-2020
Elsevier Science Ltd
Subjects:
Bentonite
Bentonite clay
Clay
Computational fluid dynamics
Contaminants
Correlation analysis
Electrolytes
Fluid dynamics
Hydrocyclone
Hydrocyclones
Mathematical modeling
Overflow
Particle classification
Performance evaluation
Pressure drop
Simulation
Particle classification
Bentonite clay
Mathematical modeling
Hydrocyclone
Computational fluid dynamics
Simulation
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Summary:[Display omitted] •Hydrocyclone performance for bentonite clay treatment is described.•CFD is used to optimize hydrocyclone performance.•The characteristic constant of a commercial hydrocyclone family is obtained.•A hydrocyclone scale-up study is performed via CFD. This work evaluates the performance of commercial hydrocyclone for removing contaminant larger particles (silt fraction) in bentonite clays, which improves its commercial value. A steady-state Eulerian–Eulerian 14-phases CFD model was verified with experimental data. The model was further used to simulate the effect of geometry and operational conditions on the recovery efficiency of fine clay fraction in the overflow. Simulation results provided data on the global fine recovery efficiency and granulometric distribution in the hydrocyclone overflow. An empirical correlation to calculate the clay volume fraction as a function of the hydrocyclone pressure drop as well as the characteristic constant parameter of the hydrocyclone family were obtained. Finally, a scale-up study was performed and the effectiveness of scaled up industrial hydrocyclones was obtained.
ISSN:0263-8762
1744-3563
DOI:10.1016/j.cherd.2020.07.005