Optimization of the soda-ethanol delignification stage for a rice husk biorefinery

Autores
Dagnino, Eliana Paola; Felissia, Fernando E.; Chamorro, Ester Ramona; Area, María Cristina
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this work was to optimize the delignification of the hemicelluloses-free fraction of rice husk to obtain fractions of lignin, cellulose, and inorganics, which could be valorized in the context of the rice husk biorefinery. The hemicelluloses were pre-extracted from the raw material by dilute sulfuric acid, and a soda-ethanol-water process was used for delignification. Two experimental designs were carried out to evaluate different ranges of the same variables (strong and light conditions), aiming to promote maximal delignification or delignify while protecting carbohydrates. The optimal delignification points were obtained using 13 and 8% of NaOH (%w/w on solid material), in a 50:50 and 54:46 ethanol:water solution. In these conditions, 94.3 and 90.1% of lignin and almost 100 and 40% of inorganics were removed from the solid, respectively. The used soda-ethanol-water process can be defined as a soda process additivated with ethanol, showing significant advantages over soda-anthraquinone process for the fractionation of lignocellulosic materials.
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: Chamorro, Ester Ramona. 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: 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
Fil: Dagnino, Eliana Paola. 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
Peer Reviewed
Fuente
Industrial Crops and Products (97), 156-165. (2017)
Materia
biorefinery rice huskK
soda-ethanol-water process
delignification optimization
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2020-05-29T17:58:15Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/4448
Acceder
id RIAUTN_d32787db6744786739999c0ab1283e5f
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Optimization of the soda-ethanol delignification stage for a rice husk biorefineryDagnino, Eliana PaolaFelissia, Fernando E.Chamorro, Ester RamonaArea, María Cristinabiorefinery rice huskKsoda-ethanol-water processdelignification optimizationThe aim of this work was to optimize the delignification of the hemicelluloses-free fraction of rice husk to obtain fractions of lignin, cellulose, and inorganics, which could be valorized in the context of the rice husk biorefinery. The hemicelluloses were pre-extracted from the raw material by dilute sulfuric acid, and a soda-ethanol-water process was used for delignification. Two experimental designs were carried out to evaluate different ranges of the same variables (strong and light conditions), aiming to promote maximal delignification or delignify while protecting carbohydrates. The optimal delignification points were obtained using 13 and 8% of NaOH (%w/w on solid material), in a 50:50 and 54:46 ethanol:water solution. In these conditions, 94.3 and 90.1% of lignin and almost 100 and 40% of inorganics were removed from the solid, respectively. The used soda-ethanol-water process can be defined as a soda process additivated with ethanol, showing significant advantages over soda-anthraquinone process for the fractionation of lignocellulosic materials.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; ArgentinaFil: Chamorro, Ester Ramona. 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: 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; ArgentinaFil: Dagnino, Eliana Paola. 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; ArgentinaPeer Reviewed2020-05-29T17:58:15Z2020-05-29T17:58:15Z2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/4448https://doi.org/10.1016/j.indcrop.2016.12.016Industrial Crops and Products (97), 156-165. (2017)reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica NacionalengengUtilización de fracciones de residuos lignocelulósicos obtenidas en el contexto de una biorrefinería. Código: IAI4707TC, 2018-2021. Director del proyecto: Dra. Ester Chamorroinfo:eu-repo/semantics/openAccess2020-05-29T17:58:15Zhttp://creativecommons.org/licenses/by-nc-sa/4.0/Atribución-NoComercial-CompartirIgual 4.0 InternacionalAcceso abierto2026-09-24T12:46:10Zoai:ria.utn.edu.ar:20.500.12272/4448instacron: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 12:46:11.357Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
title Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
spellingShingle Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
Dagnino, Eliana Paola
biorefinery rice huskK
soda-ethanol-water process
delignification optimization
title_short Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
title_full Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
title_fullStr Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
title_full_unstemmed Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
title_sort Optimization of the soda-ethanol delignification stage for a rice husk biorefinery
dc.creator.none.fl_str_mv Dagnino, Eliana Paola
Felissia, Fernando E.
Chamorro, Ester Ramona
Area, María Cristina
author Dagnino, Eliana Paola
author_facet Dagnino, Eliana Paola
Felissia, Fernando E.
Chamorro, Ester Ramona
Area, María Cristina
author_role author
author2 Felissia, Fernando E.
Chamorro, Ester Ramona
Area, María Cristina
author2_role author
author
author
dc.subject.none.fl_str_mv biorefinery rice huskK
soda-ethanol-water process
delignification optimization
topic biorefinery rice huskK
soda-ethanol-water process
delignification optimization
dc.description.none.fl_txt_mv The aim of this work was to optimize the delignification of the hemicelluloses-free fraction of rice husk to obtain fractions of lignin, cellulose, and inorganics, which could be valorized in the context of the rice husk biorefinery. The hemicelluloses were pre-extracted from the raw material by dilute sulfuric acid, and a soda-ethanol-water process was used for delignification. Two experimental designs were carried out to evaluate different ranges of the same variables (strong and light conditions), aiming to promote maximal delignification or delignify while protecting carbohydrates. The optimal delignification points were obtained using 13 and 8% of NaOH (%w/w on solid material), in a 50:50 and 54:46 ethanol:water solution. In these conditions, 94.3 and 90.1% of lignin and almost 100 and 40% of inorganics were removed from the solid, respectively. The used soda-ethanol-water process can be defined as a soda process additivated with ethanol, showing significant advantages over soda-anthraquinone process for the fractionation of lignocellulosic materials.
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: Chamorro, Ester Ramona. 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: 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
Fil: Dagnino, Eliana Paola. 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
Peer Reviewed
description The aim of this work was to optimize the delignification of the hemicelluloses-free fraction of rice husk to obtain fractions of lignin, cellulose, and inorganics, which could be valorized in the context of the rice husk biorefinery. The hemicelluloses were pre-extracted from the raw material by dilute sulfuric acid, and a soda-ethanol-water process was used for delignification. Two experimental designs were carried out to evaluate different ranges of the same variables (strong and light conditions), aiming to promote maximal delignification or delignify while protecting carbohydrates. The optimal delignification points were obtained using 13 and 8% of NaOH (%w/w on solid material), in a 50:50 and 54:46 ethanol:water solution. In these conditions, 94.3 and 90.1% of lignin and almost 100 and 40% of inorganics were removed from the solid, respectively. The used soda-ethanol-water process can be defined as a soda process additivated with ethanol, showing significant advantages over soda-anthraquinone process for the fractionation of lignocellulosic materials.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-01
2020-05-29T17:58:15Z
2020-05-29T17:58:15Z
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/20.500.12272/4448
https://doi.org/10.1016/j.indcrop.2016.12.016
url http://hdl.handle.net/20.500.12272/4448
https://doi.org/10.1016/j.indcrop.2016.12.016
dc.language.none.fl_str_mv eng
eng
language eng
dc.relation.none.fl_str_mv Utilización de fracciones de residuos lignocelulósicos obtenidas en el contexto de una biorrefinería. Código: IAI4707TC, 2018-2021. Director del proyecto: Dra. Ester Chamorro
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2020-05-29T17:58:15Z
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 2020-05-29T17:58:15Z
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 Industrial Crops and Products (97), 156-165. (2017)
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_ 1877230916941643776
score 13.24418

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