CORRELATION BETWEEN THE CHEMICAL COMPOSITION OF WOOD AND THE INCREASING OF ITS CALORIFIC VALUE THROUGH HEAT TREATMENT

dc.contributor.authorDomingos, Idalina
dc.contributor.authorFerreira, Miguel
dc.contributor.authorFerreira, José
dc.contributor.authorDulyanska, Yuliya
dc.contributor.authorAyata, Umit
dc.contributor.authorEsteves, Bruno
dc.date.accessioned2026-09-01T15:47:37Z
dc.date.available2026-09-01T15:47:37Z
dc.date.issued2026
dc.departmentBayburt Üniversitesi
dc.description.abstractIntroduction: The greatest importance of biomass lies in its Higher Heating Value (HHV), when considered for energy production. The calorific value is significantly affected by the changes in the chemical composition of the wood that occur during heat treatment. Objective: To understand the effect of heat treatment on the calorific value of the chemical constituents of two hardwoods: Sapelli and chestnut, and two softwoods: Scots pine and Siberian pine. Methods: The calorific value was determined by a Parr calorimeter – model 6400. The content of extractives was determined by successive Soxhlet extraction using about 3 g of each sample and 150 ml of dichloromethane, ethanol, and water as solvents. The extractives content was determined in accordance with TAPPI 204, and insoluble lignin by the Klason method Tappi T 222 om-02. For the determination of holocellulose, the acid chlorite method was used. Results: The calorific value of untreated wood ranged from 18.98 MJ/kg for chestnut to 20.35 MJ/kg for Siberian pine. Heat treatment resulted in an increase in the calorific value for most of the wood samples studied. Conclusion: The rise in HHV observed during heat treatment in softwoods and hardwoods is mainly due to the increase in lignin content, although dichloromethane extractives also play an important role. © 2026, Polytechnic Institute of Viseu. All rights reserved.
dc.description.sponsorshipFundação para a Ciência e a Tecnologia, FCT -- CERNAS Research Centre, (UIDB/00681/2020)
dc.identifier.doi10.29352/mill0222e.39992
dc.identifier.issn0873-3015
dc.identifier.issue22e
dc.identifier.scopus2-s2.0-105041981427
dc.identifier.scopusqualityQ4
dc.identifier.urihttps://doi.org/10.29352/mill0222e.39992
dc.identifier.urihttps://hdl.handle.net/20.500.12403/8361
dc.identifier.volume2026
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPolytechnic Institute of Viseu
dc.relation.ispartofMillenium: Journal of Education, Technologies, and Health
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20260820
dc.subjectCalorific Value
dc.subjectChemical Composition
dc.subjectHeat Treatment
dc.titleCORRELATION BETWEEN THE CHEMICAL COMPOSITION OF WOOD AND THE INCREASING OF ITS CALORIFIC VALUE THROUGH HEAT TREATMENT
dc.title.alternativeCORRELAÇÃO ENTRE A COMPOSIÇÃO QUÍMICA DA MADEIRA E O AUMENTO DO PODER CALORÍFICO ATRAVÉS DO TRATAMENTO TÉRMICO
dc.typeArticle

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