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Size distribution of the particles entrained from fluidized beds: Gas humidity effects
Author(s) -
Baron T.,
Hazlett J. D.,
Bergougnou M. A.,
Briens C. L.,
Galtier P.
Publication year - 1992
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.5450700403
Subject(s) - elutriation , fluidized bed , chromatography , particle size distribution , relative humidity , particle size , materials science , humidity , chemistry , meteorology , physics , organic chemistry
Experimental results obtained with 65 μm sand and 69 μm cracking catalyst showed that the smallest particles were not the most easily elutriated from fluidized beds of mixed size particles. This is in contradiction with the assumption applied to existing models for the prediction of the flux and size distribution of particles elutriated from a fluidized bed. The smallest particles cannot be removed by elutriation from a mixture of particles of various sizes. The smallest particles may be agglomerated with larger particles. Increasing the gas humidity, which would presumably reduce electrostatic effects, did not greatly affect the size distribution of the elutriated particles.