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Motion of solids in spouted beds
Author(s) -
Van Velzen D.,
Flamm H. J.,
Langenkamp H.,
Casile A.
Publication year - 1974
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.5450520204
Subject(s) - inlet , mechanics , volumetric flow rate , particle (ecology) , circulation (fluid dynamics) , flow (mathematics) , superficial velocity , materials science , chemistry , physics , geology , geomorphology , oceanography
Solids movement in a spouted bed has been investigated by means of a radioactively marked particle technique, using a scintillation counter as a detector. The average particle velocity in the spout was found to depend on gas flow rate, gas inlet geometry, axial elevation, bed height, and column diameter. The solids circulation rate is shown to be proportional to the gas flow rate and, further, a function of column and gas inlet geometry, density of fluidising gas and particle diameter. Empirical correlations for both the particle velocity in the spout and the solids circulation rate as a function of axial elevation, are presented.