Extractives and energetic properties of wood and charcoal
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
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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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 |
_version_ |
1807835227712651264 |