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dc.contributor.authorSilveira, Edgar Amaral-
dc.contributor.authorLamas, Giulia Cruz-
dc.contributor.authorRodrigues, Pedro Paulo de Oliveira-
dc.contributor.authorSouto, Normando P. Barbosa-
dc.contributor.authorChaves, Bruno Sant’Anna-
dc.contributor.authorGalvão, Luiz Gustavo Oliveira-
dc.contributor.authorMacedo, Lucélia Alves de-
dc.contributor.authorRodrigues, Juliana Sabino-
dc.contributor.authorLuz, Sandra Maria da-
dc.contributor.authorRousset, Patrick Louis Albert-
dc.contributor.authorProtásio, Thiago de Paula-
dc.date.accessioned2026-10-08T15:10:18Z-
dc.date.available2026-10-08T15:10:18Z-
dc.date.issued2025-
dc.identifier.citationSILVEIRA, Edgar A. et al. Effect of torrefaction severity on the energy recovery from amazonian wood residues for decentralized energy conversion systems. Biomass and Bioenergy, [S. l.], v. 193, 2025. DOI: https://doi.org/10.1016/j.biombioe.2024.107515. Disponível em: https://www.sciencedirect.com/science/article/pii/S0961953424004689?via%3Dihub.pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/57170-
dc.language.isoengpt_BR
dc.publisherElsevierpt_BR
dc.rightsAcesso Restritopt_BR
dc.titleEffect of torrefaction severity on the energy recovery from amazonian wood residues for decentralized energy conversion systemspt_BR
dc.typeArtigopt_BR
dc.subject.keywordTorrefaçãopt_BR
dc.subject.keywordResíduos de madeirapt_BR
dc.subject.keywordModelagem cinéticapt_BR
dc.identifier.doihttps://doi.org/10.1016/j.biombioe.2024.107515pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.biombioe.2024.107515-
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0961953424004689?via%3Dihubpt_BR
dc.description.abstract1Brazil features over 196 isolated energy systems, mainly in the Amazonia, relying on diesel-fired conversion for about 96 % of their energy supply. Given diesel's cost and pollution, there's a significant potential for waste wood from sustainable forest management. This study originally assessed torrefaction (225–275 °C, 60 min) to enhance the energy density of a blend (AB) consisting of six (16.66 %) waste wood: Peltogyne lecointei, Erisma uncinatum, Martiodendron elatum, Handroanthus incanus, Dipteryx odorata, and Allantoma decandra. Torrefaction was evaluated through severity indexes, morphological modification, analytical (proximate, ultimate, and calorific) characterizations and kinetic modeling. TGA assessed the torrefied blend's combustion behavior, and related emissions were determined numerically. Torrefaction modifies the raw material by significantly reducing H/C (from 1.87 to 1.05) and O/C (from 0.70 to 0.47) ratios. Considering AB275, fixed carbon sees a 159 % increase, and volatile matter (VM) decreases by 68.3 %. The low ash (0.63 %) in the final product indicates the potential for direct burning and blending for low-ash biofuel. The higher heating value improved from 20.22 to 21.64 MJ kg−1 (1.07 energy densification). Morphological analysis indicated increasing particulate matter and enhanced porosity. The two-step kinetic modeling precisely predicted the solid yield, with R2 values of 0.9979, 0.9951, and 0.9996 for AB225, AB250, and AB275. Torrefaction improved thermal stability, impacting ignition dynamics due to lower O/C and VM. Emission factors from the combustion of torrefied products reported lower emissions than diesel, coal and other biomasses: CO2, NOx, and SO2 at 1281.67–1487.48, 1.12–1.72, and 0.16–0.25 kg ton−1, respectively.pt_BR
dc.contributor.affiliationUniversity of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environmentpt_BR
dc.contributor.affiliationUniversity of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environmentpt_BR
dc.contributor.affiliationUniversity of Brasília, Mechanical Sciences Graduate Program, Laboratory of Energy and Environmentpt_BR
dc.contributor.affiliationManagement and Operational Center for the Amazon Protection System, Brasília, DF, Brazilpt_BR
dc.contributor.affiliationForest Products Laboratory, Brazilian Forest Service, Brasília, Brazilpt_BR
dc.contributor.affiliationForest Products Laboratory, Brazilian Forest Service, Brasília, Brazilpt_BR
dc.contributor.affiliationForest Products Laboratory, Brazilian Forest Service, Brasília, Brazilpt_BR
dc.contributor.affiliationForest Products Laboratory, Brazilian Forest Service, Brasília, Brazilpt_BR
dc.contributor.affiliationCIRAD, UPR BioWooEB, F-34398, Montpellier, Francept_BR
dc.contributor.affiliationFederal University of Lavras-UFLA, Department of Forest Sciencept_BR
dc.contributor.orcidhttps://orcid.org/0000-0002-7582-5010-
dc.contributor.orcidhttps://orcid.org/0000-0002-7582-5010-
dc.contributor.orcidhttps://orcid.org/0000-0002-2985-3539-
dc.contributor.orcidhttps://orcid.org/0000-0002-6663-1564-
dc.contributor.orcidhttps://orcid.org/0000-0003-4891-1949-
dc.description.unidadeFaculdade de Tecnologia (FT)pt_BR
dc.description.unidadeDepartamento de Engenharia Mecânica (FT ENM)pt_BR
dc.description.ppgPrograma de Pós-Graduação em Ciências Mecânicaspt_BR
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