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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/08/2016 |
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Data da última atualização: |
08/08/2016 |
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Autoria: |
PEREIRA, B. L. C.; CARNEIRO, A. DE C. O.; CARVALHO, A. M. M. L.; COLODETTE, J. L.; OLIVEIRA, A. C.; FONTES, M. P. F. |
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Título: |
Influence of chemical composition of Eucalyptus wood on gravimetric yield and charcoal properties. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
BioResources, Raleigh, v. 8, n. 3, p. 4574-4592, Aug. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to assess the chemical properties of wood from six clones of Eucalyptus spp. relative to charcoal yield and its properties, determine the correlations between the evaluated parameters and identify a clone of Eucalyptus having the greatest potential for charcoal to steelmaking use. The study of chemical properties included analysis of elemental composition, contents of cellulose, hemicelluloses, lignin, and ash, the syringyl/guaiacyl ratio (S/G), and the index of crystalline cellulose in the wood. The pyrolysis of wood was done in an electric laboratory oven. The gravimetric yield in charcoal, the content of volatile matter, fixed carbon and ash, higher heating value, and elementary composition were determined. Data were subjected to an analysis of variance, and after the difference between them was established, the Tukey test was applied. The Pearson correlation was employed as well. The results indicated that the contents of carbon, oxygen, and hydrogen in the wood significantly affected the charcoal yields and its higher heating value. Higher rates of crystalline cellulose favored the gravimetric yield in charcoal. The S/G ratio contributed more to the charcoal yield when compared to total lignin content. |
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Palavras-Chave: |
Crystalline cellulose. |
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Thesagro: |
Carvão vegetal; Composição química; Eucalipto; Madeira. |
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Thesaurus Nal: |
Charcoal; Eucalyptus; Product quality. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02082naa a2200277 a 4500
001 2050251
005 2016-08-08
008 2013 bl uuuu u00u1 u #d
100 1 $aPEREIRA, B. L. C.
245 $aInfluence of chemical composition of Eucalyptus wood on gravimetric yield and charcoal properties.$h[electronic resource]
260 $c2013
520 $aThe objective of this study was to assess the chemical properties of wood from six clones of Eucalyptus spp. relative to charcoal yield and its properties, determine the correlations between the evaluated parameters and identify a clone of Eucalyptus having the greatest potential for charcoal to steelmaking use. The study of chemical properties included analysis of elemental composition, contents of cellulose, hemicelluloses, lignin, and ash, the syringyl/guaiacyl ratio (S/G), and the index of crystalline cellulose in the wood. The pyrolysis of wood was done in an electric laboratory oven. The gravimetric yield in charcoal, the content of volatile matter, fixed carbon and ash, higher heating value, and elementary composition were determined. Data were subjected to an analysis of variance, and after the difference between them was established, the Tukey test was applied. The Pearson correlation was employed as well. The results indicated that the contents of carbon, oxygen, and hydrogen in the wood significantly affected the charcoal yields and its higher heating value. Higher rates of crystalline cellulose favored the gravimetric yield in charcoal. The S/G ratio contributed more to the charcoal yield when compared to total lignin content.
650 $aCharcoal
650 $aEucalyptus
650 $aProduct quality
650 $aCarvão vegetal
650 $aComposição química
650 $aEucalipto
650 $aMadeira
653 $aCrystalline cellulose
700 1 $aCARNEIRO, A. DE C. O.
700 1 $aCARVALHO, A. M. M. L.
700 1 $aCOLODETTE, J. L.
700 1 $aOLIVEIRA, A. C.
700 1 $aFONTES, M. P. F.
773 $tBioResources, Raleigh$gv. 8, n. 3, p. 4574-4592, Aug. 2013.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
22/06/2023 |
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Data da última atualização: |
22/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MADALENA, F. E.; TEODORO, R. L.; NOGUEIRA, J. D.; MOREIRA, D. de P. |
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Afiliação: |
F. E. MADALENA; ROBERTO LUIZ TEODORO, CNPGL; JOSE DARCY NOGUEIRA, CNPGL; DANILO DE PAULA MOREIRA, CPPSE. |
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Título: |
Comparative performance of six Holstein-Friesian x Guzera crossbred groups in Brazil. 4. Rate of milk flow, ease of milking and temperament. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Rev. Brasil. Genet, v. 12, n. 1, p. 39-51, 1989. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Crossbred groups. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154569/1/ComparativePerformanceOfSix.pdf
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Marc: |
LEADER 00550naa a2200157 a 4500
001 2154569
005 2023-06-22
008 1989 bl uuuu u00u1 u #d
100 1 $aMADALENA, F. E.
245 $aComparative performance of six Holstein-Friesian x Guzera crossbred groups in Brazil. 4. Rate of milk flow, ease of milking and temperament.$h[electronic resource]
260 $c1989
653 $aCrossbred groups
700 1 $aTEODORO, R. L.
700 1 $aNOGUEIRA, J. D.
700 1 $aMOREIRA, D. de P.
773 $tRev. Brasil. Genet$gv. 12, n. 1, p. 39-51, 1989.
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