New approach to thermal analysis kinetics by considering several first order reactions

► In this study we propose a new method for kinetic calculations. ► A large, but finite number of first order reactions are optimised. ► The selection of parameters is done by comparison with experimental data in a MILP Problem. ► The model is applied to the study of different thermal decomposition curves. ► Pyrolysis of Avicel cellulose, lignin, polyurethane and tannery wastes are discussed.