Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis

During thermal modification, timber is exposed to temperatures approaching 200 ºC for several hours and wood properties change. This study was aimed at evaluating the calorific value and chemical properties of juvenile and mature wood of thermally modified Eucalyptus grandis. Boards were taken from...

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Autores principales:	Fred Willians Calonego, Elias Taylor Durgante Severo, Cláudio Angeli Sansígolo, Marcos Antonio de Rezende, Edson Marcelo Bruder, Vladimir Eliodoro Costa
Formato:	article
Lenguaje:	EN
Publicado:	University of Zagreb, Faculty of Forestry and Wood Technology 2016
Materias:	biomass energy chemical properties Eucalypts thermally-modifi ed wood Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/ef1296ad8791410c90eb2247165a4821
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spelling	oai:doaj.org-article:ef1296ad8791410c90eb2247165a48212021-12-02T03:14:16ZCalorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis10.5552/drind.2016.15220012-67721847-1153https://doaj.org/article/ef1296ad8791410c90eb2247165a48212016-09-01T00:00:00Zhttp://hrcak.srce.hr/file/245935https://doaj.org/toc/0012-6772https://doaj.org/toc/1847-1153During thermal modification, timber is exposed to temperatures approaching 200 ºC for several hours and wood properties change. This study was aimed at evaluating the calorific value and chemical properties of juvenile and mature wood of thermally modified Eucalyptus grandis. Boards were taken from 30-year-old E. grandis trees and thermally modified at 180ºC. Samples of the untreated and thermally modified wood were transformed into chips and then processed into sawdust for the energy and chemical characterization of juvenile and mature wood. The results show that the thermal modifi cation causes: (1) signifi cant increases of 3.7 % and 6.8 %, respectively, in the net calorifi c value of juvenile and mature wood; (2) significant increases of 24.8 % and 47.6 %, respectively, in the extractive content of juvenile and mature wood; (3) significant decreases of 4.2 % and 8.3 % in the respective holocellulose content; and (4) signifi cant decreases in the galactose, xylose and glucose contents. It was demonstrated that the influence of thermal treatment was lower in juvenile wood than in mature wood.Fred Willians CalonegoElias Taylor Durgante SeveroCláudio Angeli SansígoloMarcos Antonio de RezendeEdson Marcelo BruderVladimir Eliodoro CostaUniversity of Zagreb, Faculty of Forestry and Wood Technologyarticlebiomassenergychemical propertiesEucalyptsthermally-modifi ed woodForestrySD1-669.5ENDrvna Industrija, Vol 67, Iss 3, Pp 207-214 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	biomass energy chemical properties Eucalypts thermally-modifi ed wood Forestry SD1-669.5
spellingShingle	biomass energy chemical properties Eucalypts thermally-modifi ed wood Forestry SD1-669.5 Fred Willians Calonego Elias Taylor Durgante Severo Cláudio Angeli Sansígolo Marcos Antonio de Rezende Edson Marcelo Bruder Vladimir Eliodoro Costa Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis
description	During thermal modification, timber is exposed to temperatures approaching 200 ºC for several hours and wood properties change. This study was aimed at evaluating the calorific value and chemical properties of juvenile and mature wood of thermally modified Eucalyptus grandis. Boards were taken from 30-year-old E. grandis trees and thermally modified at 180ºC. Samples of the untreated and thermally modified wood were transformed into chips and then processed into sawdust for the energy and chemical characterization of juvenile and mature wood. The results show that the thermal modifi cation causes: (1) signifi cant increases of 3.7 % and 6.8 %, respectively, in the net calorifi c value of juvenile and mature wood; (2) significant increases of 24.8 % and 47.6 %, respectively, in the extractive content of juvenile and mature wood; (3) significant decreases of 4.2 % and 8.3 % in the respective holocellulose content; and (4) signifi cant decreases in the galactose, xylose and glucose contents. It was demonstrated that the influence of thermal treatment was lower in juvenile wood than in mature wood.
format	article
author	Fred Willians Calonego Elias Taylor Durgante Severo Cláudio Angeli Sansígolo Marcos Antonio de Rezende Edson Marcelo Bruder Vladimir Eliodoro Costa
author_facet	Fred Willians Calonego Elias Taylor Durgante Severo Cláudio Angeli Sansígolo Marcos Antonio de Rezende Edson Marcelo Bruder Vladimir Eliodoro Costa
author_sort	Fred Willians Calonego
title	Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis
title_short	Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis
title_full	Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis
title_fullStr	Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis
title_full_unstemmed	Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis
title_sort	calorific value and chemical properties in juvenile and mature wood of thermally-modified eucalyptus grandis
publisher	University of Zagreb, Faculty of Forestry and Wood Technology
publishDate	2016
url	https://doaj.org/article/ef1296ad8791410c90eb2247165a4821
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Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis

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