Extractives and energetic properties of wood and charcoal

Detalhes bibliográficos
Autor(a) principal: Zanuncio, Antônio José Vinha
Data de Publicação: 2014
Outros Autores: Carvalho, Amélia Guimarães, Trugilho, Paulo Fernando, Monteiro, Thiago Campos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/46031
Resumo: Charcoal production stands out as a raw material for the production of renewable energy. To assess wood quality in energy terms, studies have focused more on the holocellulose and lignin content than on the role of extractives. The objective of this study was to evaluate the relationship between the extractive content in cold water, in dichloromethane and total on energy properties of wood and charcoal, from six trees species. The extractives were removed with different solvents to be recorded and gross calorific value of wood was determined. The wood was carbonized at 1.67°C/min heating rate until maximum of 450°C and residence time of 30 min. The extractive content was correlated with the gravimetric yield, apparent relative density, ash, volatile matter, fixed carbon and gross calorific value of charcoal. The removal of total extractives and extractives soluble in dichloromethane reduced the gross calorific value of wood of most species evaluated. The extractives removed in cold water did not correlate with the parameters of carbonization. The extractives content in dichloromethane correlated with volatile matter, fixed carbon and gross calorific value. Total extractive content correlated with gravimetric yield, apparent relative density and gross calorific value of charcoal.
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spelling Extractives and energetic properties of wood and charcoalExtrativos e propriedades energéticas da madeira e do carvão vegetalGross calorific valueEucalyptusGravimetric yieldEucaliptoPoder caloríficoRendimento gravimétricoCharcoal production stands out as a raw material for the production of renewable energy. To assess wood quality in energy terms, studies have focused more on the holocellulose and lignin content than on the role of extractives. The objective of this study was to evaluate the relationship between the extractive content in cold water, in dichloromethane and total on energy properties of wood and charcoal, from six trees species. The extractives were removed with different solvents to be recorded and gross calorific value of wood was determined. The wood was carbonized at 1.67°C/min heating rate until maximum of 450°C and residence time of 30 min. The extractive content was correlated with the gravimetric yield, apparent relative density, ash, volatile matter, fixed carbon and gross calorific value of charcoal. The removal of total extractives and extractives soluble in dichloromethane reduced the gross calorific value of wood of most species evaluated. The extractives removed in cold water did not correlate with the parameters of carbonization. The extractives content in dichloromethane correlated with volatile matter, fixed carbon and gross calorific value. Total extractive content correlated with gravimetric yield, apparent relative density and gross calorific value of charcoal.A produção de carvão vegetal se destaca como matéria-prima para a produção de energia renovável. A holocelulose e a lignina são mais abordadas em estudos sobre a qualidade da madeira para fins energéticos, enquanto a influência de extrativos nesse parâmetro é pouco conhecida. O objetivo foi avaliar a relação entre o teor de extrativos em água fria, diclorometano e totais e as propriedades energéticas da madeira e do carvão vegetal de seis espécies. Os extrativos foram removidos com diferentes solventes para serem contabilizados e o poder calorífico superior da madeira, determinado. A madeira foi carbonizada a uma taxa de aquecimento de 1,67 oC/min, temperatura máxima de 450 oC e tempo de residência de 30 min. O teor de extrativos foi correlacionado com o rendimento gravimétrico, densidade relativa aparente, química imediata e poder calorífico do carvão. A remoção dos extrativos totais e solúveis em diclorometano reduziu o poder calorífico da madeira da maioria das espécies avaliadas. Os extrativos em água fria não se relacionaram com os parâmetros da carbonização. O teor de extrativos em diclorometano apresentou correlação com o teor de materiais voláteis, carbono fixo e poder calorífico. O teor de extrativos totais se relacionou com o rendimento gravimétrico, densidade relativa aparente e poder calorífico do carvão vegetal.Sociedade de Investigações Florestais (SIF)2021-01-18T22:26:19Z2021-01-18T22:26:19Z2014-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfZANUNCIO, A. J. V. et al. Extractives and energetic properties of wood and charcoal. Revista Árvore, Viçosa, v. 38, n. 2, p. 369-374, Mar./Apr. 2014. DOI: 10.1590/S0100-67622014000200018.http://repositorio.ufla.br/jspui/handle/1/46031Revista Árvorereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessZanuncio, Antônio José VinhaCarvalho, Amélia GuimarãesTrugilho, Paulo FernandoMonteiro, Thiago Camposeng2021-01-18T22:26:20Zoai:localhost:1/46031Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-01-18T22:26:20Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Extractives and energetic properties of wood and charcoal
Extrativos e propriedades energéticas da madeira e do carvão vegetal
title Extractives and energetic properties of wood and charcoal
spellingShingle Extractives and energetic properties of wood and charcoal
Zanuncio, Antônio José Vinha
Gross calorific value
Eucalyptus
Gravimetric yield
Eucalipto
Poder calorífico
Rendimento gravimétrico
title_short Extractives and energetic properties of wood and charcoal
title_full Extractives and energetic properties of wood and charcoal
title_fullStr Extractives and energetic properties of wood and charcoal
title_full_unstemmed Extractives and energetic properties of wood and charcoal
title_sort Extractives and energetic properties of wood and charcoal
author Zanuncio, Antônio José Vinha
author_facet Zanuncio, Antônio José Vinha
Carvalho, Amélia Guimarães
Trugilho, Paulo Fernando
Monteiro, Thiago Campos
author_role author
author2 Carvalho, Amélia Guimarães
Trugilho, Paulo Fernando
Monteiro, Thiago Campos
author2_role author
author
author
dc.contributor.author.fl_str_mv Zanuncio, Antônio José Vinha
Carvalho, Amélia Guimarães
Trugilho, Paulo Fernando
Monteiro, Thiago Campos
dc.subject.por.fl_str_mv Gross calorific value
Eucalyptus
Gravimetric yield
Eucalipto
Poder calorífico
Rendimento gravimétrico
topic Gross calorific value
Eucalyptus
Gravimetric yield
Eucalipto
Poder calorífico
Rendimento gravimétrico
description Charcoal production stands out as a raw material for the production of renewable energy. To assess wood quality in energy terms, studies have focused more on the holocellulose and lignin content than on the role of extractives. The objective of this study was to evaluate the relationship between the extractive content in cold water, in dichloromethane and total on energy properties of wood and charcoal, from six trees species. The extractives were removed with different solvents to be recorded and gross calorific value of wood was determined. The wood was carbonized at 1.67°C/min heating rate until maximum of 450°C and residence time of 30 min. The extractive content was correlated with the gravimetric yield, apparent relative density, ash, volatile matter, fixed carbon and gross calorific value of charcoal. The removal of total extractives and extractives soluble in dichloromethane reduced the gross calorific value of wood of most species evaluated. The extractives removed in cold water did not correlate with the parameters of carbonization. The extractives content in dichloromethane correlated with volatile matter, fixed carbon and gross calorific value. Total extractive content correlated with gravimetric yield, apparent relative density and gross calorific value of charcoal.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
2021-01-18T22:26:19Z
2021-01-18T22:26:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv ZANUNCIO, A. J. V. et al. Extractives and energetic properties of wood and charcoal. Revista Árvore, Viçosa, v. 38, n. 2, p. 369-374, Mar./Apr. 2014. DOI: 10.1590/S0100-67622014000200018.
http://repositorio.ufla.br/jspui/handle/1/46031
identifier_str_mv ZANUNCIO, A. J. V. et al. Extractives and energetic properties of wood and charcoal. Revista Árvore, Viçosa, v. 38, n. 2, p. 369-374, Mar./Apr. 2014. DOI: 10.1590/S0100-67622014000200018.
url http://repositorio.ufla.br/jspui/handle/1/46031
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedade de Investigações Florestais (SIF)
publisher.none.fl_str_mv Sociedade de Investigações Florestais (SIF)
dc.source.none.fl_str_mv Revista Árvore
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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