Study on thermal decomposition kinetics of azobenzene-4,4′-dicarboxylic acid by using compensation parameter method and nonlinear fitting evaluation

Shuyi Shen; Song Guo; Sining Chen; Jinhua Zhao

doi:10.1016/j.cjche.2024.03.015

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Study on thermal decomposition kinetics of azobenzene-4,4′-dicarboxylic acid by using compensation parameter method and nonlinear fitting evaluation

Updated：2026-01-06

- Study on thermal decomposition kinetics of azobenzene-4,4′-dicarboxylic acid by using compensation parameter method and nonlinear fitting evaluation
- Chinese Journal of Chemical Engineering Vol. 70, Issue 6, Pages: 269-279(2024)
- Affiliations：
  
  1. Nanjing University of Science & Technology,Nanjing,China,210094
  2. China Academy of Safety Science and Technology,Beijing,China,100012
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2024.03.015
  CLC：
- Published：2024
- Accepted：
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Shuyi Shen, Song Guo, Sining Chen, Jinhua Zhao. Study on thermal decomposition kinetics of azobenzene-4,4′-dicarboxylic acid by using compensation parameter method and nonlinear fitting evaluation[J]. Chinese Journal of Chemical Engineering, 2024, 70(6): 269-279.
DOI：

Shuyi Shen, Song Guo, Sining Chen, Jinhua Zhao. Study on thermal decomposition kinetics of azobenzene-4,4′-dicarboxylic acid by using compensation parameter method and nonlinear fitting evaluation[J]. Chinese Journal of Chemical Engineering, 2024, 70(6): 269-279. DOI： 10.1016/j.cjche.2024.03.015.

摘要

Abstract

Recently

azobenzene-4

4'-dicarboxylic acid (ADCA) has been produced gradually for use as an organic synthesis or pharmaceutical intermediate due to its eminent performance. With large quantities put into application in the future

the thermal stability of this substance during storage

transportation

and use will become quite important. Thus

in this work

the thermal decomposition behavior

thermal decomposition kinetics

and thermal hazard of ADCA were investigated. Experiments were conducted by using a SENSYS evo DSC device. A combination of differential iso-conversion method

compensation parameter method

and nonlinear fitting evaluation were also used to analyze thermal kinetics and mechanism of ADCA decomposition. The results show that when conversion rate

increases

the activation energies of ADCA's first and main decomposition peaks fall. The amount of heat released during decomposition varies between 182.46 and 231.16 J·g

-1

. The proposed kinetic equation is based on the Avrami-Erofeev model

which is consistent with the decomposition progress. Applying the Frank-Kamenetskii model

a calculated self-accelerating decomposition temperature of 287.0 ℃ is obtained.

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