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

被引：33

作者：

Cai, Junmeng ^{[1
,2
]}

Wu, Weixuan ^{[1
]}

Liu, Ronghou ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Agr & Biol, Biomass Energy Engn Res Ctr, Shanghai 200240, Peoples R China

[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2012年 / 51卷 / 49期

基金：

中国国家自然科学基金;

关键词：

ACTIVATION-ENERGY; NONISOTHERMAL KINETICS; CONFIDENCE-INTERVALS; THERMAL-ANALYSIS; MODEL;

D O I：

10.1021/ie302160d

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

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.

引用

页码：16157 / 16161

页数：5

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