Mimicking layer inversion in solid-liquid fluidized beds in narrow tubes

@article{Benalcazar2020MimickingLI,
  title={Mimicking layer inversion in solid-liquid fluidized beds in narrow tubes},
  author={Fernando David C'unez Benalc'azar and Erick de Moraes Franklin},
  journal={Powder Technology},
  year={2020},
  volume={364},
  pages={994-1008}
}
Abstract This paper investigates experimentally and numerically the dynamics of solid particles during the layer inversion of binary solid-liquid fluidized beds in narrow tubes. Layer inversion can happen in solid classifiers and biological reactors, where different solid particles coexist and segregation by diameter and density occurs. The fluidized beds were formed in a 25.4 mm-ID pipe and consisted of alumina and aluminum beads with diameters of 6 and 4.8 mm, respectively. We placed… Expand
3 Citations
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References

SHOWING 1-10 OF 50 REFERENCES
Investigation of causes of layer inversion and prediction of inversion velocity in liquid fluidizations of binary particle mixtures
Abstract Liquid fluidization plays an important role in mineral processing such as solid classifiers and biological reactors. When particle properties differ in size, density or shape, segregationExpand
Segregation and dispersion of binary solids in liquid fluidised beds: A CFD-DEM study
Liquid fluidised beds often operate with particles of different sizes and densities, encountering partial or complete segregation of solid particles at certain operating conditions. In this study,Expand
Stability analysis in solid–liquid fluidized beds: Experimental and computational
Abstract In this study the transition from homogeneous to heterogeneous flow in a solid–liquid fluidized bed (SLFB) is examined both experimentally and numerically. The experimental apparatusExpand
Plug regime in water fluidized beds in very narrow tubes
Abstract The dynamics of granular plugs in water fluidized beds in narrow tubes is investigated here both experimentally and numerically. The fluidized beds were formed in a 25.4 mm-ID tube andExpand
Layer inversion and mixing of binary solids in two- and three-phase fluidized beds
Water fluidization in a 210 mm diameter semi-cylindrical acrylic column of a binary solids mixture of 3.2 mm polymer beads (ρ s =1280 kg/m 3 ) and 0.385 mm glass beads (ρ s =2500 kg/m 3 ) atExpand
A comprehensive interpretation of solid layer inversion in liquid fluidised beds
Abstract Solid mixing and segregation in liquid fluidised beds containing binary mixtures of spherical particles of different density and size has been studied for a range of liquid velocities, bulkExpand
Simulation of Flow Behavior of Particles in a Liquid−Solid Fluidized Bed
Understanding hydrodynamics of liquid−solid fluidized beds is crucial in proper scale-up and design of these reactors. Computational fluid dynamics (CFD) models have shown promise in gaining thisExpand
Direct modeling of voidage at layer inversion in binary liquid-fluidized bed
Abstract In liquid-fluidized bed chemical and biochemical reactors composed of binary mixtures, peculiar segregation effects can determine layers rich in one or the other component to revert theirExpand
CFD modeling of solid–liquid fluidized beds of mono and binary particle mixtures
Abstract CFD simulation of bed expansion of mono size solid–liquid fluidized beds has been performed in creeping, transition and turbulent flow regimes, where Reynolds number ( R e ∞ = d p V S ∞ ρ LExpand
Liquid fluidization of binary particle mixtures—II. Bed inversion
Abstract When the size ratio and the density ratio of the two species in a binary solids mixture are on opposite sides of unity, it is possible in some cases for such mixtures to display an inversionExpand
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