Pyrolysis is a promising alternative for the recycling of polymeric waste, converting it into valuable products while reducing CO₂ emissions. This study investigates the pyrolysis of a real commercial polymeric waste mix, analyzing its composition, decomposition kinetics, and product distribution under catalytic and non-catalytic conditions. Thermogravimetric analysis (TGA) determined activation energy values (~250 kJ/mol). Lab-scale pyrolysis tests revealed that temperature and heating rate significantly affect product yields, with slower heating improving conversion. The addition of a Pt/Al₂O₃ catalytic bed altered product distribution, increasing gas yield and shifting liquid composition toward lighter compounds. These findings suggest that in situ catalytic pyrolysis can enhance product quality, potentially improving waste valorization.
Catalytic pyrolysis of a commercial waste polymeric mix in a lab-scale plant
Pastorino Andrea;Pagliero Marcello;Comite Antonio
2025-01-01
Abstract
Pyrolysis is a promising alternative for the recycling of polymeric waste, converting it into valuable products while reducing CO₂ emissions. This study investigates the pyrolysis of a real commercial polymeric waste mix, analyzing its composition, decomposition kinetics, and product distribution under catalytic and non-catalytic conditions. Thermogravimetric analysis (TGA) determined activation energy values (~250 kJ/mol). Lab-scale pyrolysis tests revealed that temperature and heating rate significantly affect product yields, with slower heating improving conversion. The addition of a Pt/Al₂O₃ catalytic bed altered product distribution, increasing gas yield and shifting liquid composition toward lighter compounds. These findings suggest that in situ catalytic pyrolysis can enhance product quality, potentially improving waste valorization.
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