A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10570-019-02610-x http://hdl.handle.net/11449/187856 |
Resumo: | Kinetic analysis of the non-isothermal degradation of three different plant fibers has been performed using isoconversional model-free methods, model-fitting methods in order to establish if different kinetic approaches provide consistent kinetic parameters. It has been shown that these approaches provide consistent kinetic parameters and can be combined in such a way as to enhance the reliability and quality of each other and consequently the overall kinetic analysis. As a result, the most probable kinetic parameters for the non-isothermal degradation of three different types of plant fibers determined were autocatalytic-type mechanism, following recent literature. The reaction pathway followed the Waterloo’s mechanism. All models were compared with the most common solid-state reaction models using a powerful statistical tool. Activation energy of 180 kJ mol−1 was found for all degradation steps, suggesting that cellulose plays a major role on Arrhenius parameters. Hemicellulose and lignin seems to affect more significantly the reaction order. The potential of the kinetic parameters for reliable prediction has been noticed due correlation coefficient above 0.99. |
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Repositório Institucional da UNESP |
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A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanismKinetic predictionsModel-fitting kineticsModel-free kineticsPlant fiberKinetic analysis of the non-isothermal degradation of three different plant fibers has been performed using isoconversional model-free methods, model-fitting methods in order to establish if different kinetic approaches provide consistent kinetic parameters. It has been shown that these approaches provide consistent kinetic parameters and can be combined in such a way as to enhance the reliability and quality of each other and consequently the overall kinetic analysis. As a result, the most probable kinetic parameters for the non-isothermal degradation of three different types of plant fibers determined were autocatalytic-type mechanism, following recent literature. The reaction pathway followed the Waterloo’s mechanism. All models were compared with the most common solid-state reaction models using a powerful statistical tool. Activation energy of 180 kJ mol−1 was found for all degradation steps, suggesting that cellulose plays a major role on Arrhenius parameters. Hemicellulose and lignin seems to affect more significantly the reaction order. The potential of the kinetic parameters for reliable prediction has been noticed due correlation coefficient above 0.99.Fatigue and Aeronautical Material Research Group Department of Materials and Technology São Paulo State University (Unesp) School of EngineeringBiocatalysis and Bioproducts Laboratory Department of Biotechnology Lorena School of Engineering University of São PauloPostgraduate Program in Materials Science and Engineering (PGMAT) Universidade de Caxias do Sul (UCS)Fatigue and Aeronautical Material Research Group Department of Materials and Technology São Paulo State University (Unesp) School of EngineeringUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Universidade de Caxias do Sul (UCS)Ornaghi, Heitor L. [UNESP]Ornaghi, Felipe G. [UNESP]de Carvalho Benini, Kelly C. C.Bianchi, Otávio2019-10-06T15:49:22Z2019-10-06T15:49:22Z2019-08-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7145-7157http://dx.doi.org/10.1007/s10570-019-02610-xCellulose, v. 26, n. 12, p. 7145-7157, 2019.1572-882X0969-0239http://hdl.handle.net/11449/18785610.1007/s10570-019-02610-x2-s2.0-85068870285Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCelluloseinfo:eu-repo/semantics/openAccess2021-10-23T02:05:31Zoai:repositorio.unesp.br:11449/187856Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T02:05:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
title |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
spellingShingle |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism Ornaghi, Heitor L. [UNESP] Kinetic predictions Model-fitting kinetics Model-free kinetics Plant fiber |
title_short |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
title_full |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
title_fullStr |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
title_full_unstemmed |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
title_sort |
A comprehensive kinetic simulation of different types of plant fibers: autocatalytic degradation mechanism |
author |
Ornaghi, Heitor L. [UNESP] |
author_facet |
Ornaghi, Heitor L. [UNESP] Ornaghi, Felipe G. [UNESP] de Carvalho Benini, Kelly C. C. Bianchi, Otávio |
author_role |
author |
author2 |
Ornaghi, Felipe G. [UNESP] de Carvalho Benini, Kelly C. C. Bianchi, Otávio |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Universidade de Caxias do Sul (UCS) |
dc.contributor.author.fl_str_mv |
Ornaghi, Heitor L. [UNESP] Ornaghi, Felipe G. [UNESP] de Carvalho Benini, Kelly C. C. Bianchi, Otávio |
dc.subject.por.fl_str_mv |
Kinetic predictions Model-fitting kinetics Model-free kinetics Plant fiber |
topic |
Kinetic predictions Model-fitting kinetics Model-free kinetics Plant fiber |
description |
Kinetic analysis of the non-isothermal degradation of three different plant fibers has been performed using isoconversional model-free methods, model-fitting methods in order to establish if different kinetic approaches provide consistent kinetic parameters. It has been shown that these approaches provide consistent kinetic parameters and can be combined in such a way as to enhance the reliability and quality of each other and consequently the overall kinetic analysis. As a result, the most probable kinetic parameters for the non-isothermal degradation of three different types of plant fibers determined were autocatalytic-type mechanism, following recent literature. The reaction pathway followed the Waterloo’s mechanism. All models were compared with the most common solid-state reaction models using a powerful statistical tool. Activation energy of 180 kJ mol−1 was found for all degradation steps, suggesting that cellulose plays a major role on Arrhenius parameters. Hemicellulose and lignin seems to affect more significantly the reaction order. The potential of the kinetic parameters for reliable prediction has been noticed due correlation coefficient above 0.99. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:49:22Z 2019-10-06T15:49:22Z 2019-08-15 |
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.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10570-019-02610-x Cellulose, v. 26, n. 12, p. 7145-7157, 2019. 1572-882X 0969-0239 http://hdl.handle.net/11449/187856 10.1007/s10570-019-02610-x 2-s2.0-85068870285 |
url |
http://dx.doi.org/10.1007/s10570-019-02610-x http://hdl.handle.net/11449/187856 |
identifier_str_mv |
Cellulose, v. 26, n. 12, p. 7145-7157, 2019. 1572-882X 0969-0239 10.1007/s10570-019-02610-x 2-s2.0-85068870285 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cellulose |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7145-7157 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803650335877627904 |