Kinetic data computation from non-isothermal thermogravimetric curves of non-uniform heating rate
Affiliation:
1. Laboratoire de Génie de l’Environnement (LGE), Faculté de Technologie, Université de Bejaia, 06000 Bejaia, Algeria;2. Ecole Nationale Supérieure de Chimie de Rennes, Université Rennes1, CNRS, UMR 6226, 11 allée de Beaulieu, CS 50837, France;1. Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran;2. Department of Pharmaceutics, School of Pharmacy, International branch, Shiraz University of Medical Sciences, Shiraz, Iran;3. Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran;1. Department of Chemistry Graduate School, Kyungpook National University, Republic of Korea;2. Department of Chemistry Education, Kyungpook National University, Republic of Korea;3. Research Institute of Advanced Energy Technology, Kyungpook National University, Republic of Korea
Abstract:
Correlations which permit computation of the activation energy E, the “reaction order” n, and the frequency factor from non-isothermal thermogravimetric curves have been derived for reactions obeying the relation and for a non-linear temperature rise during the heating of a sample. For the experimental data processing, a corresponding algorithm has been prepared in the GIER-ALGOL language. In order to test the computation program, the published theoretical data for the dehydration of gypsum have been processed. In addition, our thermograms for the dehydration of calcium oxalate monohydrate have been evaluated. All results have been compared with the published values.
