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Brazilian Journal of Chemical Engineering

versão impressa ISSN 0104-6632

Resumo

SRINIVASAKANNAN, C.  e  BALASUBRAMANIAN, N.. A simplified approach to the drying of solids in a batch fluidised bed. Braz. J. Chem. Eng. [online]. 2002, vol.19, n.3, pp. 293-298. ISSN 0104-6632.  http://dx.doi.org/10.1590/S0104-66322002000300004.

A simplified model for drying solids in the constant rate period in a batch fluidised bed was developed.It assumes the bed to be divided into dense and bubble phases with heat and mass transfer between the phases.The model predicts the constant-rate drying period, provided the fluid bed shape and material characteristics are known.The model is compared with experimental data reported in the literature covering a wide range of materials, gas flow rates, column diameters, material hold-ups, air temperatures and humidities.Model predictions compare satisfactorily with the experimental data.

Palavras-chave : fluidisation; drying.

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