The efficacy of eutectic freeze crystallization (EFC) in crystallizers and in subsequent downstream washing or filtration steps is a direct function of size and morphology of the crystalline products. These product characteristics are influenced by supersaturation and residence time. To investigate the effect of residence time and supercooling on ice product characteristics in a continuous EFC process, crystallization experiments were performed in an EFC crystallizer with Na₂SO₄ aqueous solution. Crystal size distribution and morphology during the crystallization process were analyzed by digital image processing. Longer residence times enhanced the mean crystal size and disk-shaped ice crystals were formed. Increasing supercooling resulted in a larger mean ice equivalent diameter.

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Volume37, Issue8

Special Issue:Industrial Crystallization

August, 2014

Pages 1314-1320

Effect of Operating Conditions on Ice Characteristics in Continuous Eutectic Freeze Crystallization

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Effect of Operating Conditions on Ice Characteristics in Continuous Eutectic Freeze Crystallization

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