This study aimed to investigate the influence of two pyrolysis temperatures (300 °C and 450 °C) on the energy quality of charcoal using a mix of commercial eucalypt woods. In this study, pyrolysis was carried out at a heating rate of 3.33 °C.min⁻¹ for a duration of 3 h. The apparent density, bulk density, immediate analysis, high heating value, energy density, and combustibility index of the charcoal were measured. Under the conditions analyzed, pyrolysis performed at a final temperature of 450 °C resulted in charcoal with better energy performance than that produced at 300 °C.

This study aims to analyze the addition of widely available, cheap, and biologically based residues, such as charcoal fines, in the production of polymeric biocomposites reinforced with natural fibers subjected to UV-C radiation. The addition of charcoal fines was 0, 10, 20, 30% in the polymeric matrix of the biocomposites. The mechanical and chemical properties of the biocomposites were evaluated. The flexural strength was more resistant when subjected to UV-C radiation with 20% filling. These results attest that biocomposites with the addition of vegetative charcoal fines are less susceptible to photodegradation.