Abstract

Co-processing of olive residue with polypropylene was performed in a thermogravimetric analyzer (TGA) reaction system in a nitrogen atmosphere with a view to comparing the process of the mixture with those of the individual components. Experiments were conducted at different heating rates of 2, 10, 20 and 50 K min −1 in the temperature range of 300–975 K based on the results obtained, three thermal stages were identified during the thermal degradation. The first two were dominated by olive residue pyrolysis, while the third was linked to polypropylene pyrolysis, which occurred at much higher temperatures. Discrepancies between the experimental and calculated TG/DTG profiles were considered as a measurement of the extent of interactions occurring on co-pyrolysis. The maximum degradation temperature of each component in the mixture was higher than those of the individual components alone; thus, an increase in thermal stability was expected. The kinetic processing of thermogravimetric data was conducted using the Friedman method.

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