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Kinetic of sorbitol decomposition under non-isothermal conditions

  • Nicoleta Birta
  • N. Doca
  • Gabriela Vlase
  • T. Vlase
Regular Papers Theory/Instrumentation

Abstract

The thermal behavior of sorbitol was studied under non-isothermal conditions, in both air and nitrogen atmosphere. The main process is a deep and continuous dehydration.

For the kinetic analysis, the TG/DTG data obtained at five heating rates were processed by three different methods: Friedman, Budrugeac-Segal and non-parametric kinetic, respectively. This analysis indicates a complex reaction with a preponderant chemical process, described by a conversion function (1−α)3/2, accompanied by diffusion.

Keywords

Budrugeac-Segal method based on compensation effect food additives isoconversional methods non-isothermal kinetics NPK method sorbitol 

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Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • Nicoleta Birta
    • 1
  • N. Doca
    • 1
  • Gabriela Vlase
    • 1
  • T. Vlase
    • 1
  1. 1.Research Center for Thermal Analysis in Environmental ProblemsWest University of TimişoaraTimişoaraRomania

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