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Kinetic study of the thermal decomposition In
the present study, isothermal methods of kinetic analysis are used to investigate the
kinetics of the thermal decomposition of calcium carbonate. Thermogravimetric analyzer
experiments were carried out in standard temperature values. In order to determine the
decomposition mechanism and the conversion function form that governs it, four different
methods of isothermal kinetic analysis were used. The kinetic model that was found to
better fit the experimental results was that of phase boundary controlled reaction. The
activation energy was evaluated from the Arrhenius plots, as well as by applying an
alternative method, and the results confirmed the predominance of the chemical mechanism. |
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