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
收藏
页码：635 / 638
页数：4
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