Abstract
A significant amount of waste is generated by lumber yards in the Amazon region. The aim of this study was to investigate the production and characteristics of pellets manufactured with residual biomass from the processing of sawn wood of the species Dinizia excelsa and Manilkara elata, together with Eucalyptus spp. Eleven waste compositions (varying between 100 and 0%) of the three species (Dinizia excelsa (DE); Manilkara elata (ME); Eucalyptus spp. (E)) were analyzed for the production of pellets. Each composition was compacted separately in a pelletizer with a production capacity of 400 kg h−1, using a 6-mm-diameter flat die, and subsequently evaluated for proximate composition, physical, energetic, and mechanical characteristics. With the exception of the ash content, which was lower, with a value equal to 0.18% in the composition containing a high fraction of Eucalyptus (25% ME + 75% E), the pellets containing the residues of Amazonian species showed higher values of fixed carbon (22.88%) and mechanical durability (97.72%) when composed only of Dinizia excelsa and higher bulk density values (639.53 kg m−3) and HHV (20.39 MJ kg−1) when composed of 50% DE and 50% ME. All compositions met the quality standards required by international standards for export. Emphasis should be given to the species Dinizia excelsa in the production of pellets. The greater the presence of Dinizia excelsa residues in the composition, the better the pellets were for energy generation.
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Acknowledgements
We thank the companies Eng-Maq Ltda and Equatorian SA for donating the materials used and the Wood Energy Laboratory (LAPEM) of Federal University of Viçosa for the assistance in the analyses.
Funding
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brazil (CAPES) – Finance Code 001.
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GF, TMB, DCB: conceptualization, methodology, validation, investigation, resources, writing—original draft; DM: writing, review; MDCA: conceptualization; JGMDS, AFDJ: writing—review and editing.
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Highlights
· Biomass residues from Amazonian species were investigated for their recovery.
· Pelletizing was done with several blends of Dinizia excelsa and Manilkara elata for energy densification.
· High-energy potential was detected both in blends and in pure biomass compositions of the investigated species.
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Ferreira, G., Brito, T.M., da Silva, J.G.M. et al. Wood Waste Pellets as an Alternative for Energy Generation in the Amazon Region. Bioenerg. Res. 16, 472–483 (2023). https://doi.org/10.1007/s12155-022-10446-w
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DOI: https://doi.org/10.1007/s12155-022-10446-w