Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/41732
Title: Caracterização química e energética para aproveitamento da madeira de costaneira e desbaste de cedro australiano
Other Titles: Chemical and energetic characterization for utilization of thinning and slab wood from Australian red cedar
Keywords: Extrativos totais
Resíduos sólidos
Painéis reconstituídos
Poder calorífico
Toona ciliata
Total extractives
Solid wastes
Reconstituted panels
Higher heating value
Issue Date: 2012
Publisher: Embrapa Florestas
Citation: BUFALINO, L. et al. Caracterização química e energética para aproveitamento da madeira de costaneira e desbaste de cedro australiano. Pesquisa Florestal Brasileira, Colombo, v. 32, n. 70, p. 129-137, abr./jun. 2012.
Abstract: This work aimed to quantify and compare chemical and energetic properties of Australian red cedar Toona ciliata MJ Roem var. australis (FV Muell.) C. DC wood from thinning and primary sawing for reconstituted panel and energy production; and also to verify the efficiency of extractive removal by water treatments, in order to improve wood quality for particleboard production. Lignin, holocellulose, extractives, ash, carbon, hydrogen, oxygen, nitrogen and sulfur contents and higher heating value were determined. Two water treatments for extractive removal were performed: immersion in cold water for 24 hours and immersion in boiling water for 2 hours. Lower values of ash, holocellulose, hydrogen and nitrogen contents and higher contents of lignin, total extractives, hydrogen and nitrogen contents were found for wood from primary sawing residues. For other properties, the values were significantly equal. Australian red cedar wood presents high extractive content, being water pre-treatment necessary for the production of some particleboards. Higher heating values of materials indicate potential for energy production.
URI: http://repositorio.ufla.br/jspui/handle/1/41732
Appears in Collections:DCF - Artigos publicados em periódicos



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