A new kinetic equation for non-isothermal reaction process

被引:0
|
作者
Cheng, Y [1 ]
机构
[1] Nanjing Univ Sci & Technol, Nanjing 210094, Peoples R China
关键词
activation energy; temperature integral; kinetic equation; thermal analysis;
D O I
暂无
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
For the kinetic equation in non-Isothermal process, the temperature integral for Arrhenius Equation should be from T, to T, but the integral of many current kinetic equations is from T to 0 K, such as Ozawa Equation. Our work shows that the activation energies from these equations are with larger error for some reactions and a new kinetic equation has been established. By the isoconversional method, the activation energy of chemical reaction in linear or nonlinear heating process can be calculated more accurately by the new equation. The results by the new equation for two classic reactions, the degradation of Polyamide (PA6) and decomposition of Ca (COO)(2) center dot H2O, show that sometimes the activation energy from Ozawa Equation is accurate, and sometimes in larger error.
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页码:287 / 292
页数:6
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