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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
10/08/2011 |
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Data da última atualização: |
10/08/2011 |
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Autoria: |
DELBEN, J. R. J.; CANDELORIO, P. D.; OLIVEIRA, F. F. DE; SPONTONI, T. A.; DELBEN, A. A. S. T.; COELHO, M. de B.; ANDRADE, L. H. C. |
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Afiliação: |
J. R. J. Delben, UFMS; P. D. Candelorio, UFMS; F. F. de Oliveira, UFMS; T. A. Spontoni, UFMS; Angela A. S. T. Delben, UFMS; MARLENE DE BARROS COELHO, CNPGC; L. H. C. Andrade, UFMS. |
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Título: |
Vacuum pyrolysis of Astronium urundeuva. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 93, n.3, p. 915-919, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Currently, there are ecological and energy crises due to the increasing demand for industrialized products and personal comfort (thermal conditioning, alimentary needs, transport demand, etc.). The consumption of fossil energy sources (coal and oil) is significant considering depleting supplies. In underdeveloped countries, native forest territory is being lost as the original forest biomass is consumed and agricultural land borders expand. The release of pollutant carbon into the atmosphere is increasing; this carbon was previously fixed in wood, oil beds and native forest. Meanwhile, the fossil reserves will be depleted in a few decades. Due to this situation, petroleum natural gas (PNG) is beginning to be used intensely worldwide, in the past it was released into the atmosphere. The development of cheap materials for large-scale permanent fixation of carbon, while adsorbing PNG for storage and transport, is desired. There are three options for storing PNG: ? the use of appropriate solvent; its drawback is the low solubility of the methane, requiring high pressures [1] ? the inclusion of composites [2]; its disadvantage is the low storage capacity ? the adsorption in porous materials [3?8]; that is the most promising mechanism ? A lot of research is focused on the development of microporous adsorbers with a large superficial area, high packing density and good mass and heat transfer properties [9, 10]. The best choice so far is activated charcoal acting as an adsorber. Such a system can store PNG at moderate pressures (3.5 MPa), compared with the high pressures (20 MPa) required for natural gas compression [11]. Its storage capacity is in the range of 300?700 Kg m?3, with the adsorbed/adsorbent volume rate varying from 101 to 172 V/V, whereas the ideal rate is around 150 V/V [4, 5, 7, 12?17]. The pyrolysis of vegetal organics is a common process for activating carbon. The activation of carbon can occur in some environments, such as vacuum, steam, and CO2, with different results on the microporosity lacking meso- and macroporosity. The maximization of the superficial area and adsorption capacity of the activated charcoal is still under study [18?20]. In this work, the pyrolysis of the Aroeira (Astronium Urundeuva), a wood of the Middle West Brazilian Biome, is presented. The samples were characterized by differential scanning calorimetry (DSC), thermogravimetric analysis (TG), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). MenosCurrently, there are ecological and energy crises due to the increasing demand for industrialized products and personal comfort (thermal conditioning, alimentary needs, transport demand, etc.). The consumption of fossil energy sources (coal and oil) is significant considering depleting supplies. In underdeveloped countries, native forest territory is being lost as the original forest biomass is consumed and agricultural land borders expand. The release of pollutant carbon into the atmosphere is increasing; this carbon was previously fixed in wood, oil beds and native forest. Meanwhile, the fossil reserves will be depleted in a few decades. Due to this situation, petroleum natural gas (PNG) is beginning to be used intensely worldwide, in the past it was released into the atmosphere. The development of cheap materials for large-scale permanent fixation of carbon, while adsorbing PNG for storage and transport, is desired. There are three options for storing PNG: ? the use of appropriate solvent; its drawback is the low solubility of the methane, requiring high pressures [1] ? the inclusion of composites [2]; its disadvantage is the low storage capacity ? the adsorption in porous materials [3?8]; that is the most promising mechanism ? A lot of research is focused on the development of microporous adsorbers with a large superficial area, high packing density and good mass and heat transfer properties [9, 10]. The best choice so far is activated charcoal acting as an adsorber. Suc... Mostrar Tudo |
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Palavras-Chave: |
Pirólise. |
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Thesagro: |
Aroeira; Astronium Urundeuva; Madeira. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 03174naa a2200241 a 4500
001 1897692
005 2011-08-10
008 2008 bl uuuu u00u1 u #d
100 1 $aDELBEN, J. R. J.
245 $aVacuum pyrolysis of Astronium urundeuva.$h[electronic resource]
260 $c2008
520 $aCurrently, there are ecological and energy crises due to the increasing demand for industrialized products and personal comfort (thermal conditioning, alimentary needs, transport demand, etc.). The consumption of fossil energy sources (coal and oil) is significant considering depleting supplies. In underdeveloped countries, native forest territory is being lost as the original forest biomass is consumed and agricultural land borders expand. The release of pollutant carbon into the atmosphere is increasing; this carbon was previously fixed in wood, oil beds and native forest. Meanwhile, the fossil reserves will be depleted in a few decades. Due to this situation, petroleum natural gas (PNG) is beginning to be used intensely worldwide, in the past it was released into the atmosphere. The development of cheap materials for large-scale permanent fixation of carbon, while adsorbing PNG for storage and transport, is desired. There are three options for storing PNG: ? the use of appropriate solvent; its drawback is the low solubility of the methane, requiring high pressures [1] ? the inclusion of composites [2]; its disadvantage is the low storage capacity ? the adsorption in porous materials [3?8]; that is the most promising mechanism ? A lot of research is focused on the development of microporous adsorbers with a large superficial area, high packing density and good mass and heat transfer properties [9, 10]. The best choice so far is activated charcoal acting as an adsorber. Such a system can store PNG at moderate pressures (3.5 MPa), compared with the high pressures (20 MPa) required for natural gas compression [11]. Its storage capacity is in the range of 300?700 Kg m?3, with the adsorbed/adsorbent volume rate varying from 101 to 172 V/V, whereas the ideal rate is around 150 V/V [4, 5, 7, 12?17]. The pyrolysis of vegetal organics is a common process for activating carbon. The activation of carbon can occur in some environments, such as vacuum, steam, and CO2, with different results on the microporosity lacking meso- and macroporosity. The maximization of the superficial area and adsorption capacity of the activated charcoal is still under study [18?20]. In this work, the pyrolysis of the Aroeira (Astronium Urundeuva), a wood of the Middle West Brazilian Biome, is presented. The samples were characterized by differential scanning calorimetry (DSC), thermogravimetric analysis (TG), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD).
650 $aAroeira
650 $aAstronium Urundeuva
650 $aMadeira
653 $aPirólise
700 1 $aCANDELORIO, P. D.
700 1 $aOLIVEIRA, F. F. DE
700 1 $aSPONTONI, T. A.
700 1 $aDELBEN, A. A. S. T.
700 1 $aCOELHO, M. de B.
700 1 $aANDRADE, L. H. C.
773 $tJournal of Thermal Analysis and Calorimetry$gv. 93, n.3, p. 915-919, 2008.
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Embrapa Gado de Corte (CNPGC) |
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| 2. |  | SILVA, M. S. da C.; ALVES, R. M.; ALBUQUERQUE, P. S. B. de. Caracterização molecular dos parentais da próxima cultivar de cupuaçuzeiro, com uso de marcadores moleculares do tipo microssatélites. In: SEMINÁRIO CIENTÍFICO DA UFRA, 7.; SEMINÁRIO [DE INICIAÇÃO CIENTÍFICA] DA EMBRAPA AMAZÔNIA ORIENTAL, 13.; SEMINÁRIO DE PESQUISA DA UFRA, 1., 2009, Belém, PA. Pesquisa e desenvolvimento tecnológico na formação do jovem cientista: anais. Belém, PA: UFRA: Embrapa Amazônia Oriental, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | KEMPNER, T.; ALVES, R. M.; ALBUQUERQUE, P. S. B. de; OLIVEIRA, H. O. de. Genotipagem de plantas de cupuaçuzeiro, obtidas de uma população contrastante para resistência a Moniliophthora perniciosa, para a identificação de QRL's. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 15., 2011, Belém, PA. A ciência de fazer ciência: anais. Belém, PA: Embrapa Amazônia Oriental, 2011. 1 CD-ROM. PIBIC-2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | PONTES, L. C. G.; CUNHA, E. F. M.; SILVA, C. R. de S.; ALBUQUERQUE, P. S. B. de. Análise da variabilidade genética em acessos de mandioca resistentes a podridão mole. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 17.; SEMINÁRIO DE PÓS-GRADUAÇÃO DA EMBRAPA AMAZÔNIA ORIENTAL, 1., 2013, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental, 2013. 1 CD-ROM. PIBIC 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | SILVA, M. S. da C.; ALVES, R. M.; SILVA, C. R. de S.; ALBUQUERQUE, P. S. B. de. Caracterização molecular dos parentais de uma nova cultivar de cupuaçuzeiro, utilizando marcadores microssatélites. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari.O melhoramento e os novos cenários da agricultura: anais. Vitória: SBMP: Incaper, 2009. 1 CD-ROM. (Incaper. Documentos, 11).| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | CUNHA, E. F. M.; SILVA, C. R. de S.; ALBUQUERQUE, P. S. B. de; RAMALHO, G. F.; PONTES, L. C. G.; FARIAS NETO, J. T. de. Molecular characterization of 'sweet' cassavas (Manihot esculenta) from a germplasm bank in Brazilian Eastern Amazonia. Crop Breeding and Applied Biotechnology, v. 16, n. 1, p. 28-34, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | RAMALHO, G. F.; MOURA, E. F.; SILVA, C. R. de S.; ALBUQUERQUE, P. S. B. de; PONTES, L. C. G.; SOUZA, L. S. Divergência genética entre acessos de macaxeira do BAG da Embrapa Amazônia Oriental por meio de marcadores microssatélites. In: CONGRESSO BRASILEIRO DE MANDIOCA, 14.; FEIRA BRASILEIRA DA MANDIOCA, 1., 2011, Maceió. Mandioca: fonte de alimento e energia: anais. Maceió: ABAM: SBM, 2011. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 9. | | NASCIMENTO, A. dos S.; ALVES, R. M.; SILVA, C. R. de S.; ALBUQUERQUE, P. S. B. de; LEMOS, L. S. L.; GRAMACHO, K. P.; CLÉMENT, D. Transferibilidade e mapeamento de microssatélites entre Theobroma cacao L. e Theobroma grandiflorum (Willd. ex. Spreng.) Schum. Agrotrópica, v. 31, n. 2, p. 85-102, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 10. | | MOURNET, P.; ALBUQUERQUE, P. S. B. de; ALVES, R. M.; SILVA-WERNECK, J. O.; RIVALLAN, R.; MARCELLINO, L. H.; CLÉMENT, D. A reference high-density genetic map of Theobroma grandiflorum (Willd. ex Spreng) and QTL detection for resistance to witches' broom disease (Moniliophthora perniciosa). Tree Genetics & Genomes, v. 16, article 89, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 11 | |
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