USE OF RAW AND TORREFIED BAMBOO AND EUCALYPTUS BIOMASS FOR PELLET PRODUCTION
DOI:
https://doi.org/10.5380/rf.v55i1.98299Keywords:
residues, biofuel, renewable energy, energy qualityAbstract
Forest residues are an important source of biomass for energy purposes. One of the ways to utilize this biomass is through pellet production, , in which the material undergoes a densification process to improve its properties. Torrefaction of biomass can also contribute to improving the pellets characteristics. The present study aimed to evaluate the properties of pellets produced from raw and torrefied biomass of bamboo and eucalyptus. For this purpose, pellets were produced from raw biomass and after torrefaction at 220 °C, and their properties were evaluated based on the parameters of international standards and commercial Pinus pellets. It was observed that pellets made from raw Bamboo biomass exhibited properties similar to commercial Pinus pellets, in terms of physicochemical characteristics , whereas eucalyptus pellets did not meet the minimum requirement for moisture content. The results demonstrated that the chemical and energy properties were improved with the torrefied biomass, since the process increased the fixed carbon content and calorific value, as well as the degradation of the pellets at higher temperatures, enhancing combustion. However, the mechanical properties were negatively affected for both species. It can be concluded that the bamboo species Phyllostachys aurea represents a promising raw material source for pellet production through biomasstorrefaction, when compared to the same treatment applied to Eucalyptus dunnii and also with raw Pinus taeda pellets.
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Copyright (c) 2025 Rafaela Faber de Campos, Everton Hillig, Erica Leonor Romão, Dimas Agostinho da Silva, Luciano Farinha Watzlawick

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