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|Type:||Artigo de periódico|
|Title:||Drying in the rotating-pulsed fluidized bed|
|Author:||Ambrosio-Ugri, M. C. B.|
Taranto, O. P.
|Abstract:||There are particulate materials that are cohesive when wet. Although they are Geldart's group A dry powders, they show difficulties in fluidizing in a conventional fluidized bed, which could be diminished by modifying the fluidization equipment. Therefore, the objective of this work was to study the drying of cohesive particulate material using a rotating-pulsed fluidized bed. The material used in the drying study was 2-hydroxybenzoic acid because its cohesive forces are stronger when wet. The drying experiments were carried out according to the following parameters: frequency of disk (5 and 15 Hz), initial moisture content of the material (high and low) and gas temperature at 85°C. From the drying kinetic curves and visual observations during the experiments, it could be concluded that the rotating-pulsed fluidized bed is an alternative for the processing of cohesive solids that preserves the final quality of the dry solids.|
|Editor:||Brazilian Society of Chemical Engineering|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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