Kinetics of the xylitol crystallization in hydro-alcoholic solution |
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| Authors: | Ernesto Acosta Martínez Marco Giulietti Joo Batista de Almeida e Silva Silas Derenzo |
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| Affiliation: | aCuban Institute for Research on Sugarcane Derivatives, P.O. Box 4026, Havana, Cuba;bLorena Engineering School, University of São Paulo, C. Postal 116, CEP 12602-810, Lorena, SP, Brazil;cInstitute for Technological Research of São Paulo, P.O. Box 0141, CEP 01064-970, SP, Brazil;dFederal University of São Carlos, SP, Brazil |
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| Abstract: | Nývlt method was used to determine the kinetic parameters of commercial xylitol in ethanol:water (50:50 %w/w) solution by batch cooling crystallization. The kinetic exponents (n, g and m) and the system kinetic constant (BN) were determined. Model experiments were carried out in order to verify the combined effects of saturation temperatures (40, 50 and 60 °C) and cooling rates (0.10, 0.25 and 0.50 °C/min) on these parameters. The fitting between experimental and calculated crystal sizes has 11.30% mean deviation. |
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| Keywords: | Xylitol Crystallization Kinetics Growth Nucleation |
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