Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition.
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/5132 https://doi.org/10.1016/j.indcrop.2011.11.009 |
Resumo: | Sugarcane bagasse cellulose was subjected to the extremely low acid (ELA) hydrolysis in 0.07% H2SO4 at 190, 210 and 225 ◦C for various times. The cellulose residues from this process were characterized by TGA, XRD, GPC, FTIR and SEM. A kinetic study of thermal decomposition of the residues was also carried out, using theASTMand Kissinger methods. The thermal studies revealed that residues of cellulose hydrolyzed at 190, 210 and 225 ◦C for 80, 40 and 8 min have initial decomposition temperature and activation energy for the main decomposition step similar to those of Avicel PH-101. XRD studies confirmed this finding by showing that these cellulose residues are similar to Avicel in crystallinity index and crystallite size in relation to the 110 and 200 planes. FTIR spectra revealed no significant changes in the cellulose chemical structure and analysis of SEM micrographs demonstrated that the particle size of the cellulose residues hydrolyzed at 190 and 210 ◦C were similar to that of Avicel. |
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Gurgel, Leandro Vinícius AlvesMarabezi, KarenRamos, Luiz AntonioCurvelo, Antonio Aprigio da Silva2015-04-17T15:40:24Z2015-04-17T15:40:24Z2012GURGEL, L. V. A. et al. Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose: effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. Industrial Crops and Products, v. 36, p. 560-571, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0926669011004365>. Acesso em: 02 fev. 2015.0926-6690http://www.repositorio.ufop.br/handle/123456789/5132https://doi.org/10.1016/j.indcrop.2011.11.009Sugarcane bagasse cellulose was subjected to the extremely low acid (ELA) hydrolysis in 0.07% H2SO4 at 190, 210 and 225 ◦C for various times. The cellulose residues from this process were characterized by TGA, XRD, GPC, FTIR and SEM. A kinetic study of thermal decomposition of the residues was also carried out, using theASTMand Kissinger methods. The thermal studies revealed that residues of cellulose hydrolyzed at 190, 210 and 225 ◦C for 80, 40 and 8 min have initial decomposition temperature and activation energy for the main decomposition step similar to those of Avicel PH-101. XRD studies confirmed this finding by showing that these cellulose residues are similar to Avicel in crystallinity index and crystallite size in relation to the 110 and 200 planes. FTIR spectra revealed no significant changes in the cellulose chemical structure and analysis of SEM micrographs demonstrated that the particle size of the cellulose residues hydrolyzed at 190 and 210 ◦C were similar to that of Avicel.Sugarcane bagasseThermal decompositionMicrocrystalline celluloseAcid hydrolysisCharacterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Industrial Crops and Products concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3581990039975.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-82636http://www.repositorio.ufop.br/bitstream/123456789/5132/2/license.txtc2ffdd99e58acf69202dff00d361f23aMD52ORIGINALARTIGO_CharacterizationDepolimerizedResidues.pdfARTIGO_CharacterizationDepolimerizedResidues.pdfapplication/pdf1723223http://www.repositorio.ufop.br/bitstream/123456789/5132/1/ARTIGO_CharacterizationDepolimerizedResidues.pdf98dadcddf0a418d17ae6ccb098e6b6d7MD51123456789/51322019-07-11 11:36:15.929oai:localhost: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Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-07-11T15:36:15Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
title |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
spellingShingle |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. Gurgel, Leandro Vinícius Alves Sugarcane bagasse Thermal decomposition Microcrystalline cellulose Acid hydrolysis |
title_short |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
title_full |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
title_fullStr |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
title_full_unstemmed |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
title_sort |
Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose : effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. |
author |
Gurgel, Leandro Vinícius Alves |
author_facet |
Gurgel, Leandro Vinícius Alves Marabezi, Karen Ramos, Luiz Antonio Curvelo, Antonio Aprigio da Silva |
author_role |
author |
author2 |
Marabezi, Karen Ramos, Luiz Antonio Curvelo, Antonio Aprigio da Silva |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gurgel, Leandro Vinícius Alves Marabezi, Karen Ramos, Luiz Antonio Curvelo, Antonio Aprigio da Silva |
dc.subject.por.fl_str_mv |
Sugarcane bagasse Thermal decomposition Microcrystalline cellulose Acid hydrolysis |
topic |
Sugarcane bagasse Thermal decomposition Microcrystalline cellulose Acid hydrolysis |
description |
Sugarcane bagasse cellulose was subjected to the extremely low acid (ELA) hydrolysis in 0.07% H2SO4 at 190, 210 and 225 ◦C for various times. The cellulose residues from this process were characterized by TGA, XRD, GPC, FTIR and SEM. A kinetic study of thermal decomposition of the residues was also carried out, using theASTMand Kissinger methods. The thermal studies revealed that residues of cellulose hydrolyzed at 190, 210 and 225 ◦C for 80, 40 and 8 min have initial decomposition temperature and activation energy for the main decomposition step similar to those of Avicel PH-101. XRD studies confirmed this finding by showing that these cellulose residues are similar to Avicel in crystallinity index and crystallite size in relation to the 110 and 200 planes. FTIR spectra revealed no significant changes in the cellulose chemical structure and analysis of SEM micrographs demonstrated that the particle size of the cellulose residues hydrolyzed at 190 and 210 ◦C were similar to that of Avicel. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012 |
dc.date.accessioned.fl_str_mv |
2015-04-17T15:40:24Z |
dc.date.available.fl_str_mv |
2015-04-17T15:40:24Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
GURGEL, L. V. A. et al. Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose: effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. Industrial Crops and Products, v. 36, p. 560-571, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0926669011004365>. Acesso em: 02 fev. 2015. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/5132 |
dc.identifier.issn.none.fl_str_mv |
0926-6690 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.indcrop.2011.11.009 |
identifier_str_mv |
GURGEL, L. V. A. et al. Characterization of depolymerized residues from extremely low acid hydrolysis (ELA) of sugarcane bagasse cellulose: effects of degree of polymerization, crystallinity and crystallite size on thermal decomposition. Industrial Crops and Products, v. 36, p. 560-571, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0926669011004365>. Acesso em: 02 fev. 2015. 0926-6690 |
url |
http://www.repositorio.ufop.br/handle/123456789/5132 https://doi.org/10.1016/j.indcrop.2011.11.009 |
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eng |
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eng |
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reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
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