Energy and exergy analysis is a practical method for evaluating energy behavior in a thermal process. These analyses applied to waste-to-energy conversion technologies provide information on operating conditions, facilitating energy optimization processes. In this study, an energetic and exergy analysis is used on the thermochemical degradation process of polypropylene in a tubular reactor at 600 °C with a speed of 15 °C min-1. The experimental data used in this work were taken from the study by Parku et al.(2020). According to the results, energy efficiencies of up to 43% and exergy efficiencies of 38% were achieved, and it was also observed, according to what was reported, that the products obtained from pyrolysis contain a high calorific value and can be used as alternative fuels