Kinetic modeling using temperature as an on-line measurement: Application to the hydrolysis of acetic anhydride, a revisited kinetic model

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Elizabeth Antonia Garcia-Hernandez, Camilla Ribeiro Souza, Lamiae Vernières-Hassimi, Sébastien Leveneur
Publisher: Elsevier
Publication year: 2019
Journal: Thermochimica Acta
Journal acronym: Thermochim. Acta
Volume number: 682
Number of pages: 10
ISSN: 0040-6031
eISSN: 1872-762X


Abstract

The use of calorimeter in chemical reaction engineering is a powerful tool to estimate kinetic constants. Indeed, reaction temperature is used as an online analytical signal. Nevertheless, the thermal characterization of the calorimeter must be done to avoid wrong estimation. The hydrolysis of acetic anhydride was used as a reaction model in a handmade calorimeter, because it is a fast and exothermic reaction. Several research groups have studied this reaction without taking into account the autocatalytic effect due to the production of acetic acid. To fill this gap, a kinetic model was developed by taking this phenomenon and in a thermally characterized handmade calorimeter. The estimated kinetic constants in the handmade calorimeter were found to be similar than in the established calorimeter Mettler Toledo RC1.


Keywords

calorimeter, Exothermic reaction, Isoperibolic mode

Last updated on 2020-26-05 at 06:03