%0 Journal Article
%T Drying in the rotating-pulsed fluidized bed
%A Ambrosio-Ugri
%A M. C. B.
%A Taranto
%A O. P.
%J Brazilian Journal of Chemical Engineering
%D 2007
%I Brazilian Society of Chemical Engineering
%R 10.1590/S0104-66322007000100009
%X 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 85ˇăc. 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.
%K drying
%K fluidized bed
%K particulate material.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0104-66322007000100009&lng=en&nrm=iso&tlng=en