Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products

Autores
Dagnino, Eliana Paola; Chamorro, Ester Ramona; Felissia, Fernando E.; Area, María Cristina
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The delignification kinetics of lignocellulosic waste is an important tool for the study of the technical-economic viability of biorefinery processes. The aim of this work was to study the kinetic of lignin extraction by a soda-ethanol treatment of hemicelluloses-free rice husk, within the framework of a biorefinery. Additionally, the type of phenolic structures in the extracted lignin and the behavior of inorganics were evaluated. The kinetic study was carried out at 140, 150, and 160 °C, at different times between 3 and 100 min of reaction for each temperature. A first order kinetic model was adjusted to the experimental data of residual lignin in the treated solid in the fast and slow phase. The kinetic constant k0 varied from 0.021 to 0.035 min−1 for 140–160 °C. The activation energies were 38.59 kJ/mol and 33.47 kJ/mol for the fast and slow phase, respectively. The inorganics components remained in the solid and the proportion of silicon increased through all treatments. About 50% of the initial lignin with 1% of inorganics was recovered by precipitation. The percentage of total OH in lignin remained high, about 8.5%, and decreased with the temperature but not with the time of the reaction.
Fil: Chamorro, Ester. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica - Biológica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Dagnino, Eliana P. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica - Biológica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Felissia, Fernando E. Universidad Nacional de Misiones. Programa de celulosa y papel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Materiales de Misiones; Argentina
Fil: Area, María Cristina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Programa de celulosa y papel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Materiales de Misiones; Argentina
Peer Reviewed
Fuente
Chemical Engineering Research and Design 129, 1-8. (2018)
Materia
delignification
soda-ethanol-water process
kinetic
rice husk
biorefinery
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2020-05-29T17:29:50Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/4443
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/4443
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of productsDagnino, Eliana PaolaChamorro, Ester RamonaFelissia, Fernando E.Area, María Cristinadelignificationsoda-ethanol-water processkineticrice huskbiorefineryThe delignification kinetics of lignocellulosic waste is an important tool for the study of the technical-economic viability of biorefinery processes. The aim of this work was to study the kinetic of lignin extraction by a soda-ethanol treatment of hemicelluloses-free rice husk, within the framework of a biorefinery. Additionally, the type of phenolic structures in the extracted lignin and the behavior of inorganics were evaluated. The kinetic study was carried out at 140, 150, and 160 °C, at different times between 3 and 100 min of reaction for each temperature. A first order kinetic model was adjusted to the experimental data of residual lignin in the treated solid in the fast and slow phase. The kinetic constant k0 varied from 0.021 to 0.035 min−1 for 140–160 °C. The activation energies were 38.59 kJ/mol and 33.47 kJ/mol for the fast and slow phase, respectively. The inorganics components remained in the solid and the proportion of silicon increased through all treatments. About 50% of the initial lignin with 1% of inorganics was recovered by precipitation. The percentage of total OH in lignin remained high, about 8.5%, and decreased with the temperature but not with the time of the reaction.Fil: Chamorro, Ester. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica - Biológica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Dagnino, Eliana P. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica - Biológica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Felissia, Fernando E. Universidad Nacional de Misiones. Programa de celulosa y papel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Materiales de Misiones; ArgentinaFil: Area, María Cristina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Programa de celulosa y papel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Materiales de Misiones; ArgentinaPeer Reviewed2020-05-29T17:29:50Z2020-05-29T17:29:50Z2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/4443https://doi.org/10.1016/j.cherd.2017.10.026Chemical Engineering Research and Design 129, 1-8. (2018)reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica NacionalengengAlternativas tecnológicas para el aprovechamiento integral de biomasa lignocelulósica. Código: IPUTIRE0002069. 2014-2018. Director del proyecto: Dra. Ester Chamorroinfo:eu-repo/semantics/openAccess2020-05-29T17:29:50Zhttp://creativecommons.org/licenses/by-nc-sa/4.0/Atribución-NoComercial-CompartirIgual 4.0 InternacionalAcceso abierto2026-09-24T12:45:13Zoai:ria.utn.edu.ar:20.500.12272/4443instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:45:15.69Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
title Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
spellingShingle Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
Dagnino, Eliana Paola
delignification
soda-ethanol-water process
kinetic
rice husk
biorefinery
title_short Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
title_full Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
title_fullStr Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
title_full_unstemmed Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
title_sort Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
dc.creator.none.fl_str_mv Dagnino, Eliana Paola
Chamorro, Ester Ramona
Felissia, Fernando E.
Area, María Cristina
author Dagnino, Eliana Paola
author_facet Dagnino, Eliana Paola
Chamorro, Ester Ramona
Felissia, Fernando E.
Area, María Cristina
author_role author
author2 Chamorro, Ester Ramona
Felissia, Fernando E.
Area, María Cristina
author2_role author
author
author
dc.subject.none.fl_str_mv delignification
soda-ethanol-water process
kinetic
rice husk
biorefinery
topic delignification
soda-ethanol-water process
kinetic
rice husk
biorefinery
dc.description.none.fl_txt_mv The delignification kinetics of lignocellulosic waste is an important tool for the study of the technical-economic viability of biorefinery processes. The aim of this work was to study the kinetic of lignin extraction by a soda-ethanol treatment of hemicelluloses-free rice husk, within the framework of a biorefinery. Additionally, the type of phenolic structures in the extracted lignin and the behavior of inorganics were evaluated. The kinetic study was carried out at 140, 150, and 160 °C, at different times between 3 and 100 min of reaction for each temperature. A first order kinetic model was adjusted to the experimental data of residual lignin in the treated solid in the fast and slow phase. The kinetic constant k0 varied from 0.021 to 0.035 min−1 for 140–160 °C. The activation energies were 38.59 kJ/mol and 33.47 kJ/mol for the fast and slow phase, respectively. The inorganics components remained in the solid and the proportion of silicon increased through all treatments. About 50% of the initial lignin with 1% of inorganics was recovered by precipitation. The percentage of total OH in lignin remained high, about 8.5%, and decreased with the temperature but not with the time of the reaction.
Fil: Chamorro, Ester. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica - Biológica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Dagnino, Eliana P. Universidad Tecnológica Nacional. Facultad Regional Resistencia. Centro de Investigación en Química Orgánica - Biológica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Felissia, Fernando E. Universidad Nacional de Misiones. Programa de celulosa y papel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Materiales de Misiones; Argentina
Fil: Area, María Cristina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Programa de celulosa y papel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Materiales de Misiones; Argentina
Peer Reviewed
description The delignification kinetics of lignocellulosic waste is an important tool for the study of the technical-economic viability of biorefinery processes. The aim of this work was to study the kinetic of lignin extraction by a soda-ethanol treatment of hemicelluloses-free rice husk, within the framework of a biorefinery. Additionally, the type of phenolic structures in the extracted lignin and the behavior of inorganics were evaluated. The kinetic study was carried out at 140, 150, and 160 °C, at different times between 3 and 100 min of reaction for each temperature. A first order kinetic model was adjusted to the experimental data of residual lignin in the treated solid in the fast and slow phase. The kinetic constant k0 varied from 0.021 to 0.035 min−1 for 140–160 °C. The activation energies were 38.59 kJ/mol and 33.47 kJ/mol for the fast and slow phase, respectively. The inorganics components remained in the solid and the proportion of silicon increased through all treatments. About 50% of the initial lignin with 1% of inorganics was recovered by precipitation. The percentage of total OH in lignin remained high, about 8.5%, and decreased with the temperature but not with the time of the reaction.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
2020-05-29T17:29:50Z
2020-05-29T17:29:50Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/4443
https://doi.org/10.1016/j.cherd.2017.10.026
url http://hdl.handle.net/20.500.12272/4443
https://doi.org/10.1016/j.cherd.2017.10.026
dc.language.none.fl_str_mv eng
eng
language eng
dc.relation.none.fl_str_mv Alternativas tecnológicas para el aprovechamiento integral de biomasa lignocelulósica. Código: IPUTIRE0002069. 2014-2018. Director del proyecto: Dra. Ester Chamorro
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2020-05-29T17:29:50Z
http://creativecommons.org/licenses/by-nc-sa/4.0/
Atribución-NoComercial-CompartirIgual 4.0 Internacional
Acceso abierto
eu_rights_str_mv openAccess
rights_invalid_str_mv 2020-05-29T17:29:50Z
http://creativecommons.org/licenses/by-nc-sa/4.0/
Atribución-NoComercial-CompartirIgual 4.0 Internacional
Acceso abierto
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv Chemical Engineering Research and Design 129, 1-8. (2018)
reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
_version_ 1877230896540549120
score 13.24418

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