DRYING OF PARTICULATE SOLIDS: DETERMINATION OF THE CHARACTERISTIC CURVE OF BROWN COAL. |
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Authors: | JL Bueno O Iglesias A Garcia |
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Affiliation: | Department of Chemical Engineering University of Oviedo , 33071, OVIEDO, SPAIN |
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Abstract: | ABSTRACT Variation on the rate of drying of brown coal powder as a function of environmental and intrinsic properties has been studied in a gravimetric laboratory-scale drier. Raw data have been treated to correlate the constant rate of drying and the equilibrium moisture content as a function of flow rate and temperature of the gas phase, particle size and surface additives. The characteristic drying curve occurs when the reduced rate of drying is plotted as a function of a dimensionless moisture potetial. |
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Keywords: | critical moisture content kinetics of drying |
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