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Some hydrodynamic aspects of 3-phase inverse fluidized bed

Authors
Journal
China PARTICUOLOGY
1672-2515
Publisher
Elsevier
Publication Date
Volume
5
Issue
5
Identifiers
DOI: 10.1016/j.cpart.2007.06.002
Keywords
  • Inverse Fluidization
  • Inverse Fluidized Bed
  • Hydrodynamics
  • Phase Holdup
  • Axial Holdup

Abstract

Abstract Hydrodynamics of 3-phase inverse fluidized bed is studied experimentally using low density particles for different liquid and gas velocities. The hydrodynamic characteristics studied include pressure drop, minimum liquid and gas fluidization velocities and phase holdups. The minimum liquid fluidization velocity determined using the bed pressure gradient, decreases with increase in gas velocity. The axial profiles of phase holdups shows that the liquid holdup increases along the bed height, whereas the solid holdup decreases down the bed. However, the gas holdup is almost uniform in the bed.

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