%0 Journal Article %A Jiong DING %A Qi CHEN %A Qiyue XU %A Suijun YANG %A Shuliang YE %T ARC thermal inertia correction method based on C80 data merging %D 2019 %R 10.11949/j.issn.0438-1157.20180556 %J CIESC Journal %P 417-424 %V 70 %N 1 %X

Due to the limit of the principle of accelerating rate calorimeter, thermal inertia factor correction is necessary for kinetics computation. However, the existing correction methods are contrary to the fact that the thermal inertia factor is shifty during the reaction process. Actually, the specific heat of the reactant and the efficiency of temperature tracking change with the reaction process. This leads to the kinetic computation errors. In response to these deficiencies, a method is proposed that the dynamical thermal inertia factor correction based on differential scanning calorimeter (C80) and accelerating rate calorimeter (ARC) data merging. The details of the method are as followed. Firstly, according to the Friedman method, the non-model kinetics parameters are obtained with the C80 data. Secondly, the product of the heat capacity and the equivalent thermal inertia factor is got through using the non-model kinetics parameters to solve the accelerating rate calorimeter data. Third, with the replacement of constant thermal inertia factor and the specific heat by the product, the kinetics results of ARC data are calculated. To verify the validity of the proposed method, the experiments are performed by using di-tert-butyl peroxide (DTBP) and cumene hydroperoxide (CHP). The results show that the proposed methods can avoid the influence of the dynamical thermal inertia factor in kinetic computation. It is worth popularizing in the thermal safety evaluation of chemical process.

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