Kinetic of sorbitol decomposition under non-isothermal conditions

被引：34

作者：

Birta, Nicoleta ^{[1
]}

Doca, N. ^{[1
]}

Vlase, Gabriela ^{[1
]}

Vlase, T. ^{[1
]}

机构：

[1] W Univ Timisoara, Res Ctr Thermal Anal Environm Problems, Timisoara 300115, Romania

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 92卷 / 02期

关键词：

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

D O I：

10.1007/s10973-007-7938-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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-alpha)(3/2), accompanied by diffusion.

引用

页码：635 / 638

页数：4

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