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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Calonego, Fred Willians ; Durgante Severo, Elias Taylor ; Sansigolo, Claudio Angeli ; de Rezende, Marcos Antonio ; Bruder, Edson Marcelo ; Costa, Vladimir Eliodoro
Número total de Autores: 6
Tipo de documento: Artigo Científico
Fonte: DRVNA INDUSTRIJA; v. 67, n. 3, p. 207-214, 2016.
Citações Web of Science: 2
Resumo

During thermal modification, timber is exposed to temperatures approaching 200 degrees C 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 180 degrees C. 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 modification causes: (1) significant increases of 3.7 % and 6.8 %, respectively, in the net calorific 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) significant 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. (AU)

Processo FAPESP: 05/59074-7 - Efeito da termorretificação nas propriedades físicas, mecânicas e na resistência a fungos deterioradores da madeira de Eucalyptus grandis Hill ex Maiden
Beneficiário:Fred Willians Calonego
Linha de fomento: Bolsas no Brasil - Doutorado