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Elutriation of solid particles from a dense-phase fluidized bed

✍ Scribed by Chin Yung Wen; Richard F. Hashinger

Publisher
American Institute of Chemical Engineers
Year
1960
Tongue
English
Weight
766 KB
Volume
6
Category
Article
ISSN
0001-1541

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✦ Synopsis

Abstract

The elutriation of fines from fluidized beds of two‐ and multiparticle systems is investigated. Materials used are glass beads and coal powder with air and helium as the elutriating gases.

A specific elutriation rate constant which takes into consideration the particle stratification and thus is nearly independent of the bed dimensions is employed in the correlation of the elutriation of fines.

The proposed generalized correlation applicable to a system of two particle sizes and to more complex ones is presented. Recorrelation of pertinent literature data by the dimensionless equation indicates good agreement in spite of a diversity of bed geometries. The effect of fluidized‐bed parameters on the rate of elutriation is examined, and applications and limitations of the correlation are shown.

πŸ“œ SIMILAR VOLUMES

Fluidized-bed heat transfer: A generaliz
Fluidized-bed heat transfer: A generalized dense-phase correlation
✍ Chin-yung Wen; Max Leva πŸ“‚ Article πŸ“… 1956 πŸ› American Institute of Chemical Engineers 🌐 English βš– 823 KB

## Abstract A fluidized‐bed heat transfer mechanism is proposed that assumes that the chief resistance to heat exchange between a confining wall and a fluidized bed is in the laminar film at the vessel boundary. Heat flow through the film is by conduction. As the solids‐particle velocity along the