Data/hora: 02/06/2024 13:41:52

Provedor de dados: | 190
País: | Brazil

Título:

Chemical and energetic characterization for utilization of thinning and slab wood from Australian red cedar

Caracterização química e energética para aproveitamento da madeira de costaneira e desbaste de cedro australiano

Autores: | Bufalino, Lina; Protásio, Thiago de Paula; Couto, Allan Motta; Nassur, Otávio Augusto Carvalho; de Sá, Vânia Aparecida; Trugilho, Paulo Fernando; Mendes, Lourival Marin.
Data: | 2012-06-13
Ano: | 2012
Palavras-chave: | Total extractives  Solid wastes  Reconstituted panels  Higher heating value  Toona ciliata Recursos Florestais; Engenharia Florestal; Tecnologia da Madeira Extrativos totais  Resíduos sólidos  Painéis reconstituídos  Poder calorífico  Toona ciliata.
Resumo: | 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.doi: 10.4336/2012.pfb.32.70.13
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/356
Editor: | Embrapa Florestas

Relação:

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/356/262

http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/downloadSuppFile/356/239

Formato: | application/pdf

Fonte:

Brazilian Journal of Forestry Research; v. 32, n. 70 (2012); 129

Pesquisa Florestal Brasileira; v. 32, n. 70 (2012); 129

1983-2605

1809-3647

Fonte:

Direitos autorais 2015 Pesquisa Florestal Brasileira

http://creativecommons.org/licenses/by-nc-nd/4.0