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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Solos. |
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Data corrente: |
27/02/2013 |
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Data da última atualização: |
26/09/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ALHO, C. F. B. V.; AUCCAISE, R.; MAIA, C. M. B. de F.; NOVOTNY, E. H.; LELIS, R. C. C. |
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Afiliação: |
CARLOS FRANCISCO BRAZÃO VIEIRA ALHO, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; RUBEN AUCCAISE, BOLSISTA CNPS; CLAUDIA MARIA BRANCO DE F MAIA, CNPF; ETELVINO HENRIQUE NOVOTNY, CNPS; ROBERTO CARLOS COSTA LELIS, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO. |
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Título: |
Using solid state 13C NMR to study pyrolysis final temperature effects on biochar stability. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: XU, J.; WU, J.; HE, Y. (ed.). Functions of natural organic matter in changing environment. Dordrecht: Springer, 2013. p. 1007-1011. |
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DOI: |
https://doi.org/10.1007/978-94-007-5634-2_186 |
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Idioma: |
Inglês |
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Conteúdo: |
Recent results in biochar research show that it is not only composed of stable carbon, since a portion of these materials is degraded relatively easily once applied to soil, and this condition is most dependent on pyrolysis conditions, especially the final temperature. Thus, the aim of this study was to evaluate pyrolysis final temperature effects on the stability of biochar produced from forest residues using solid-state 13C NMR. Pyrolysis was performed at a heating rate of 10°C·min-1 up to the final temperature of interest (350, 450 and 550°C), maintaining this temperature for 60 min. Solid-state 13C NMR spectra were obtained on a Varian 500-MHz spectrometer for fresh wood and biochars produced at 350, 450 and 550°C for Eucalyptus dunnii (DUN) and Pinus caribaea (CAR). Comparing fresh samples with their respective biochars, regardless of the botanical group, after pyrolysis, carbohydrates are degraded, and there is a change in the structure of the materials, with a predominance of aromatic structures, which are more resistant to degradation, therefore reflecting in the increased stability of these materials. For 350°C, it is still possible to observe signals related to lignin indicating that up to this temperature it has not been completely degraded. The spectra of biochars produced at 450 and 550°C are very similar, indicating that there is no need to produce biochars at very high final temperatures, since the structure of these materials obtained at 550°C slightly altered as of 450°C, keeping the predominance of aromatic structures. MenosRecent results in biochar research show that it is not only composed of stable carbon, since a portion of these materials is degraded relatively easily once applied to soil, and this condition is most dependent on pyrolysis conditions, especially the final temperature. Thus, the aim of this study was to evaluate pyrolysis final temperature effects on the stability of biochar produced from forest residues using solid-state 13C NMR. Pyrolysis was performed at a heating rate of 10°C·min-1 up to the final temperature of interest (350, 450 and 550°C), maintaining this temperature for 60 min. Solid-state 13C NMR spectra were obtained on a Varian 500-MHz spectrometer for fresh wood and biochars produced at 350, 450 and 550°C for Eucalyptus dunnii (DUN) and Pinus caribaea (CAR). Comparing fresh samples with their respective biochars, regardless of the botanical group, after pyrolysis, carbohydrates are degraded, and there is a change in the structure of the materials, with a predominance of aromatic structures, which are more resistant to degradation, therefore reflecting in the increased stability of these materials. For 350°C, it is still possible to observe signals related to lignin indicating that up to this temperature it has not been completely degraded. The spectra of biochars produced at 450 and 550°C are very similar, indicating that there is no need to produce biochars at very high final temperatures, since the structure of these materials obtained at 550°C slightly altere... Mostrar Tudo |
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Palavras-Chave: |
Forest residues; NMR; Organic matter stability; Pyrogenic carbon. |
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Thesaurus Nal: |
biochar. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02379nam a2200229 a 4500
001 2156892
005 2023-09-26
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/978-94-007-5634-2_186$2DOI
100 1 $aALHO, C. F. B. V.
245 $aUsing solid state 13C NMR to study pyrolysis final temperature effects on biochar stability.$h[electronic resource]
260 $aIn: XU, J.; WU, J.; HE, Y. (ed.). Functions of natural organic matter in changing environment. Dordrecht: Springer, 2013. p. 1007-1011.$c1011
520 $aRecent results in biochar research show that it is not only composed of stable carbon, since a portion of these materials is degraded relatively easily once applied to soil, and this condition is most dependent on pyrolysis conditions, especially the final temperature. Thus, the aim of this study was to evaluate pyrolysis final temperature effects on the stability of biochar produced from forest residues using solid-state 13C NMR. Pyrolysis was performed at a heating rate of 10°C·min-1 up to the final temperature of interest (350, 450 and 550°C), maintaining this temperature for 60 min. Solid-state 13C NMR spectra were obtained on a Varian 500-MHz spectrometer for fresh wood and biochars produced at 350, 450 and 550°C for Eucalyptus dunnii (DUN) and Pinus caribaea (CAR). Comparing fresh samples with their respective biochars, regardless of the botanical group, after pyrolysis, carbohydrates are degraded, and there is a change in the structure of the materials, with a predominance of aromatic structures, which are more resistant to degradation, therefore reflecting in the increased stability of these materials. For 350°C, it is still possible to observe signals related to lignin indicating that up to this temperature it has not been completely degraded. The spectra of biochars produced at 450 and 550°C are very similar, indicating that there is no need to produce biochars at very high final temperatures, since the structure of these materials obtained at 550°C slightly altered as of 450°C, keeping the predominance of aromatic structures.
650 $abiochar
653 $aForest residues
653 $aNMR
653 $aOrganic matter stability
653 $aPyrogenic carbon
700 1 $aAUCCAISE, R.
700 1 $aMAIA, C. M. B. de F.
700 1 $aNOVOTNY, E. H.
700 1 $aLELIS, R. C. C.
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Esconder MarcMostrar Marc Completo |
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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Tipo/Formato |
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| Registros recuperados : 166 | |
| 1. |  | CASTRO, A. C. R. de; BARBOSA, E. R.; CRUZ, A. C. A. DA; VASCONCELOS SEGUNDO, V. C.; PEREIRA, M. A.; LIMA, A. C.; TORRES, C. R. B.; ARAGAO, F. A. S. de. Characterization of cashew nut (Anacardium occidentale L.) germplasm for Kernel quality attributes. International Journal Plant Biology, v. 14, p. 1092–1099, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
|    |
| 4. | | CASTRO, C. E. F. de; GONÇALVES, C.; LOPES, V.; TAVARES, A. R.; BARROS, F. de; CASTRO, A. C. R. de. Zingiber: synonymy, accepted and excluded species Ornamental Horticulture, v. 29, n. 2, p. 286-298, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 6. | | CASTRO, A. C. R. de; CORREIA, D.; SOUZA, F. V. D.; SOUZA, E. H. de; FRANCO, J.; CAVALCANTI, T. B.; SILVA, D. A. da. Brazilian ornamental phytogenetic resources in Embrapa germplasm banks: obstacles and opportunities. Ornamental Horticulture, v. 28, n. 4, p. 396-406, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Mandioca e Fruticultura; Embrapa Recursos Genéticos e Biotecnologia. |
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| 7. | | CASTRO, A. C. R. de; CORREIA, D.; SOUZA, F. V. D.; SOUZA, E. H. de; OLIVEIRA, J. M. F. de; CAVALCANTI, T. B.; SILVA, D. A. da. Brazilian ornamental phytogenetic resources in Embrapa germplasm banks: obstacles and opportunities. Ornamental Horticulture, v. 28, n. 4, p. 396-406, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Roraima. |
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| 9. | | MACHADO, C. de F.; OLIVEIRA, V. R. de; ALVES, R. M.; VASCONCELOS, L. F. L.; SOUZA, F. X. de; RITZINGER, R.; FONSECA, N.; SOARES FILHO, W. dos S.; CASTRO, A. C. R. de. Bancos genéticos de cajá, umbu e espécies afins. In: SILVA JUNIOR, J. F. da; SOUZA, F. V. D.; PADUA, J. G. (ed.). A arca de Noé das frutas nativas brasileiras. Brasília, DF: Embrapa, 2021. Cap. 10 p.120-39.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Amazônia Oriental; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte; Embrapa Semiárido. |
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| 10. | | MATTISON, C. P.; VANT-HULL, B.; CASTRO, A. C. R. de; CHIAL, H. J.; BREN-MATTISON, Y.; BECHTE, P. J.; BRITO, E. S. de. Characterization of Anti-Ana o 3 Monoclonal Antibodies and Their Application in Comparing Brazilian Cashew Cultivars. Antibodies, v. 10, n. 46, 2021.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 14. | | MAIA, C. Y.; SOARES, N. S.; CASTRO, A. C. R. de; QUEIRÓS, J. R. A. de; ARAGAO, F. A. S. de; BORDALLO, P. do N. Genetic divergence of Anthurium affine germplasm using morphoagronomic and molecular descriptors. Revista Ciência Agronômica, v. 51, n. 4, e20197068, 2020. Título em Português: Divergência genética do germoplasma de Anthurium affine utilizando descritores morfoagronômicos e moleculares.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 15. | | CAMPOS, A. S.; BOMFIM, G. V. do; CARVALHO, A. C. P. P. de; AZEVEDO, B. M. de; CASTRO, A. C. R. de; VASCONCELOS, D. V. Aclimatização de mudas micropropagadas de Anthurium maricense com diferentes lâminas de irrigação. Irriga, Botucatu, v. 24, n. 1, p. 25-37, jan./mar. 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 16. | | CARVALHO, A. C. P. P. de; SILVA, C. de F. B. da; TANIGUCHI, C. A. K.; CASTRO, A. C. R. de; SOUZA, F. V. D.; PASTORI, P. L.; DIAS, N. da S.; GONDIM, R. S.; BEZERRA, F. C.; DABLE, G. G.; SILVA, L. M. A. e. Híbridos de abacaxizeiro ornamental para cultivo em vaso. Fortaleza: Embrapa Agroindústria Tropical, 2019. 40 p. (Embrapa Agroindústria Tropical. Circular técnica, 49).| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 17. | | PAIVA, S. R.; TEIXEIRA, F. F.; RAMOS, S. R. R.; MACHADO, C. de F.; MAZZOCATO, A. C.; LAMEIRA, O. A.; LEITE, D. L.; CASTRO, A. C. R. de; MELLO, S. C. M. de; SILVA, J. B. T. da; AZEVEDO, V. C. R. Caracterização de recursos genéticos. In: PAIVA, S. R.; ALBUQUERQUE, M. do S. M.; SALOMÃO, A. N.; JOSÉ, S. C. B. R.; MOREIRA, J. R. de A. (Ed.). Recursos genéticos: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2019. p. 109-129. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Amazônia Oriental; Embrapa Clima Temperado; Embrapa Milho e Sorgo; Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Tabuleiros Costeiros. |
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| 19. | | SILVA, C. de F. B. da; CARVALHO, A. C. P. P. de; CASTRO, A. C. R. de; TANIGUCHI, C. A. K.; DIAS, N. da S.; MIRANDA, F. R. de; PASTORI, P. L.; ALVES, F. H. N. da S.; CAMPOS, A. S. Produção de antúrio para folhagem em vaso. Fortaleza: Embrapa Agroindústria Tropical, 2019. (Embrapa Agroindústria Tropical. Circular técnica, 48).| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 20. | | ALVES FILHO, E.; SILVA, L. M. A. e; LIMA, Y.; RIBEIRO, P. R. V.; SILVA, E. de O.; ZOCOLO, G. J.; CANUTO, K. M.; MORAIS, S. M. DE; CASTRO, A. C. R. de; BRITO, E. S. de. Metabolomic variability of different genotypes of cashew by LC-Ms and correlation with near-infrared spectroscopy as a tool for fast phenotyping. Metabolites, Basel, v. 9, n. 6, artigo 121, 19 p. June 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| Registros recuperados : 166 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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