In this paper both kinetic and thermodynamic parameters of thermochemical transformation of waste tires are evaluated by using
thermogravimetric analysis (TGA). For rubber thermochemical decomposition, individually and in the presence of other tires
components, some kinetic and thermodynamic parameters such as energy of activation (Ea), frequency factor (A), reaction
enthalpy (ΔH), entropy (ΔS) and free energy (ΔG) have been calculated by using the integration method.
The experimental data was used to highlight the influence of textile and metal tire compounds and provided worthy and
substantive information on the issues to conduct and manage thermochemical process at larger scale in order to maximize the
interest product yield.
Kinetic parameters values show that tested materials exhibit different thermal degradation patterns during pyrolysis process at
different heating rates. Two distinct areas of weight loss and a shift of thermal degradation peaks at higher temperatures and
increasing heating rate have been identified. Also, it was established that both individual fiber and metal induce an important
decreasing in Ea and ΔH values during tire rubber pyrolysis.