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On the use of the generalized autocatalytic models: The thermal decomposition of 3,5‐dinitro‐4‐methylbenzoic acid
Author(s) -
Sanchirico Roberto
Publication year - 2015
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14729
Subject(s) - autocatalysis , thermal decomposition , arrhenius equation , decomposition , thermodynamics , chemistry , mathematics , materials science , physics , organic chemistry , activation energy , catalysis
The thermal decomposition of 3,5‐dinitro‐4‐methylbenzoic acid is studied by means of differential calorimetric techniques (DSC). Its autocatalytic behaviour has been highlighted and the decomposition process has been described considering the generalized expression of the Šesták–Berggren model. A new procedure for the optimization of the initiation parameter along with the other Arrhenius constants and kinetic exponents starting from the knowledge of the classic Šesták–Berggren model is illustrated. Encouraging results point out the validity of the approach which has been verified considering both a series of numerical and real experiments. © 2015 American Institute of Chemical Engineers AIChE J , 61: 1300–1308, 2015