Open AccessThe Thermal Risk of Autocatalytic Decompositions: A Kinetic Study
Author(s) -
Jean-Michel Dien,
Hans Eduard Fierz,
Francis Stoessel,
G. Kille
Publication year - 1994
Publication title -
chimia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.387
H-Index - 55
eISSN - 2673-2424
pISSN - 0009-4293
DOI - 10.2533/chimia.1994.542
Subject(s) - autocatalysis , adiabatic process , isothermal process , calorimeter (particle physics) , thermodynamics , kinetic energy , autocatalytic reaction , thermal runaway , thermal , reaction rate , order of reaction , exothermic reaction , materials science , kinetics , nuclear engineering , chemistry , physics , statistical physics , engineering , reaction rate constant , catalysis , classical mechanics , power (physics) , biochemistry , battery (electricity) , detector , optics
A method is presented for the estimation of the 'time to maximum rate under adiabatic conditions' of autocatalytic decompositions and for their safety assessment. This method is based on the kinetics: a first-order reaction in competition with a Prout-Tompkins step was choosen. Isothermal or temperature-programmed Differential Scanning Calorimeter curves were used to obtain the kinetic parameters. The method requires the heat release rates at the start of the reaction and at its maximum. It is in agreement with previously published ones, but is more easy to apply and allows, therefore, to performe a quick assessment of the safety of a process. Results found for the adiabatic case were confirmed by Accelerating Rate Calorimeter experiments.