Isoconversional Kinetic Analysis of Complex Solid-State Processes: Parallel and Successive Reactions

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• 作者：Junmeng Cai ; Weixuan Wu ; Ronghou Liu
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2012
• 出版时间：December 12, 2012
• 年：2012
• 卷：51
• 期：49
• 页码：16157-16161
• 全文大小：279K
• 年卷期：v.51,no.49(December 12, 2012)
• ISSN：1520-5045

文摘

A critical study of the use of the iterative linear integral isoconversional method for a parallel reactions process and a successive reactions process has been performed using theoretical simulated nonisothermal data. The activation energies obtained for these complex processes show a strong dependence on the range of heating rates, which is against the assumptions of isoconversional methods. Therefore, a systematic kinetic analysis for discriminating the reactions rather than merely assuming that the activation energy varies with the conversion would be required for understanding the reaction mechanism of these processes.