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Hydrodynamics of a mobile bed contactor with ‘Low’ density packing particles of different shapes
Author(s) -
Rama O. P.,
Rao D. P.,
Rao V. Subba
Publication year - 1983
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450610614
Subject(s) - fluidization , pressure drop , mechanics , contactor , materials science , particle (ecology) , packed bed , fluidized bed , expansion ratio , particle density , drop (telecommunication) , flow (mathematics) , chromatography , chemistry , composite material , thermodynamics , geology , volume (thermodynamics) , physics , engineering , mechanical engineering , power (physics) , oceanography
Experimental studies have been reported on pressure drop, liquid holdup, bed expansion and minimum fluidization velocity in a 0.15 m ID mobile bed of relatively low density (53–183 kg m −3 ) spherical and irregular shaped particles. The Kito‐Tabei‐Murata correlation has been adapted to fit the data on the liquid holdup and the pressure drop. The bed expansion was found to depend on the shape and density of the particles. It is shown that, in general, only a part of the liquid holdup in the bed is supported by the upward flow of gas. It was observed that in some regions the particles congregated at the wall, leaving a particle free core. The maps depicting these regions are presented.