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

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Fil: Dagnino, Eliana Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina.

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Autores principales: Dagnino, Eliana Paola, Felissia, Fernando Esteban, Chamorro, Ester Ramona, Area, María Cristina
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Elsevier 2018
Materias:
Delignification
Soda-ethanol-water process
Kinetic
Rice husk
Biorefinery
Acceso en línea:https://hdl.handle.net/20.500.12219/4347
Aporte de:
Repositorio Institucional Digital de la UNaM (RIDUNAM) de Universidad Nacional de Misiones
id I77-R195-20.500.12219-4347
record_format dspace
spelling I77-R195-20.500.12219-43472024-06-04T10:28:41Z Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products Dagnino, Eliana Paola Felissia, Fernando Esteban Chamorro, Ester Ramona Area, María Cristina Delignification Soda-ethanol-water process Kinetic Rice husk Biorefinery Fil: Dagnino, Eliana Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina. Fil: Dagnino, Eliana Paola. Universidad Nacional del Nordeste. Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina. Fil: Dagnino, Eliana Paola. Universidad Tecnológica Nacional. Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina. Fil: Felissia, Fernando Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones. Programa de celulosa y papel; Argentina. Fil: Felissia, Fernando Esteban. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Química y Naturales. Instituto de Materiales de Misiones. Programa de celulosa y papel; Argentina. Fil: Chamorro, Ester Ramona. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina. Fil: Chamorro, Ester Ramona. Universidad Nacional del Nordeste. Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina. Fil: Chamorro, Ester Ramona. Universidad Tecnológica Nacional. Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina. Fil: Area, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones. Programa de celulosa y papel; Argentina. Fil: Area, María Cristina. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Química y Naturales. Instituto de Materiales de Misiones. Programa de celulosa y papel; Argentina. 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 0.035min-1 for 140 to 160 °C. The activation energies were 38.59 KJ/mol and 33.47KJ/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. 2018-01-01 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://hdl.handle.net/20.500.12219/4347 eng info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0263876217305919 info:eu-repo/semantics/openAccess application/pdf application/pdf 1.097 MB Elsevier
institution Universidad Nacional de Misiones
institution_str I-77
repository_str R-195
collection Repositorio Institucional Digital de la UNaM (RIDUNAM)
language Inglés
topic Delignification
Soda-ethanol-water process
Kinetic
Rice husk
Biorefinery
spellingShingle Delignification
Soda-ethanol-water process
Kinetic
Rice husk
Biorefinery
Dagnino, Eliana Paola
Felissia, Fernando Esteban
Chamorro, Ester Ramona
Area, María Cristina
Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
topic_facet Delignification
Soda-ethanol-water process
Kinetic
Rice husk
Biorefinery
description Fil: Dagnino, Eliana Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Modelado e Innovación Tecnológica. Centro de Investigación en Química Orgánica Biológica; Argentina.
format Artículo
Artículo
publishedVersion
author Dagnino, Eliana Paola
Felissia, Fernando Esteban
Chamorro, Ester Ramona
Area, María Cristina
author_facet Dagnino, Eliana Paola
Felissia, Fernando Esteban
Chamorro, Ester Ramona
Area, María Cristina
author_sort Dagnino, Eliana Paola
title Studies on lignin extraction from rice husk by a soda-ethanol treatment : kinetics, separation, and characterization of products
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
publisher Elsevier
publishDate 2018
url https://hdl.handle.net/20.500.12219/4347
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