Design of Conical Spouted Beds for the Handling of Low-Density Solids

A study has been carried on the applicability of correlations previously proposed for the design of conical spouted beds, for the treatment of materials of density similar to that of glass, and for the handling of plastic materials (polyethylene, polypropylene, and extruded and expanded polystyrene)...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2004-01, Vol.43 (2), p.655-661
Main Authors: Olazar, Martín, San José, María J, Alvarez, Sonia, Morales, Alberto, Bilbao, Javier
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Fluidization
Hydrodynamics of contact apparatus
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Summary:A study has been carried on the applicability of correlations previously proposed for the design of conical spouted beds, for the treatment of materials of density similar to that of glass, and for the handling of plastic materials (polyethylene, polypropylene, and extruded and expanded polystyrene). The correlations proposed allow for calculation of the geometric factors (angle and design of the base) of conical spouted beds for stable operation, the minimum velocity for spouting and dilute spouting, the operating pressure drop in both regimes, the peak pressure, the bed voidage, and the evolution of this voidage as the gas velocity is increased between the regimes of a spouted bed and a dilute spouted bed.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie030613v