JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
ELUTRIATION OF FINES FROM FLUIDIZED BED
ISAMU TANAKAHISASHI SHINOHARAHIDEHARU HIROSUEYASUHIKO TANAKA
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1972 Volume 5 Issue 1 Pages 51-57

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Abstract

The elutriation rate of fine particles was measured in the various systems of fluidized beds ; gas-solid and liquid-solid, and continuous and batch fluidized systems.
From experiments on the continuous fluidized bed with two particle-size system, that is, fine and coarse particles, it appeared that the concentration of fines was kept at a constant value Cs, throughout the bed height except in the space near the overflow pipe.
The elutriation rate coefficients of fines were calculated based on Cs.
Correlating the elutriation rate coefficients with the dimensionless groups introduced from the material and momentum balance equations, an empirical equation has been derived within ±25% deviation.

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© The Society of Chemical Engineers, Japan
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