Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations

Bio-polyols, produced by liquefying lignin with polyhydric alcohols, offer a promising alternative to conventional polyols for polyurethane production. To enhance the sustainability on the production of these bio-polyols, this study proposes the use of crude glycerol and microwave-assisted liquefact...

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Autores: Hernández Ramos, Fabio, González Alriols, María, Antxustegi Bengoetxea, Miren Mirari, Labidi Bouchrika, Jalel, Erdocia Iriarte, Xabier
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/63419
Acceso en línea:http://hdl.handle.net/10810/63419
Access Level:acceso abierto
Palabra clave:bio-polyol
organosolv lignin
crude glycerol
liquefaction
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spelling Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulationsHernández Ramos, FabioGonzález Alriols, MaríaAntxustegi Bengoetxea, Miren MirariLabidi Bouchrika, JalelErdocia Iriarte, Xabierbio-polyolorganosolv lignincrude glycerolliquefactionBio-polyols, produced by liquefying lignin with polyhydric alcohols, offer a promising alternative to conventional polyols for polyurethane production. To enhance the sustainability on the production of these bio-polyols, this study proposes the use of crude glycerol and microwave-assisted liquefaction as substitutes for conventional methods and commercial glycerol. This approach reduces the energy requirements of the reaction while also adding value to this by-product. The synthesis of bio-polyols with suitable properties to produce elastic and rigid polyurethane was carried out using previously optimised reaction conditions. Organosolv lignins obtained from Eucalyptus globulus and Pinus radiata were employed, using polyethylene glycol and crude glycerol as solvents and sulphuric acid as a catalyst. Several parameters of the bio-polyols were analysed, including hydroxyl number (IOH), acid number (An), and functionality (f), suggesting that the bio-polyols were suitable for polyurethane synthesis. Bio-polyols formulated to produce rigid polyurethanes exhibited IOH values of 554 and 383 (mg KOH/g), An values of 1.91 and 4.21 (mg KOH/g), and functionalities of 4.16 and 3.14 for Eucalyptus globulus and Pinus radiata lignin. In the case of bio-polyols for elastic polyurethanes, the values were 228 and 173 (mg KOH/g) (IOH), 20.94 and 25.09 (mg KOH/g) (An), and functionalities of 3.51 and 2.08.The authors would like to acknowledge the financial support of the University of the Basque Country (project COLAB20/04). F. Hernández-Ramos would like to acknowledge the Grant received from the Environmental Department of the Diputación Foral de Gipuzkoa. The authors thank SGIker (UPV/EHU/ERDF, EU) for their technical and human support.Elsevier202320232023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/63419reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.sciencedirect.com/science/article/pii/S0141813023027502info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/)Atribución-NoComercial-SinDerivadas 3.0 Españaoai:addi.ehu.eus:10810/634192026-06-18T09:23:17Z
dc.title.none.fl_str_mv Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
title Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
spellingShingle Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
Hernández Ramos, Fabio
bio-polyol
organosolv lignin
crude glycerol
liquefaction
title_short Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
title_full Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
title_fullStr Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
title_full_unstemmed Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
title_sort Valorisation of crude glycerol in the production of liquefied lignin bio-polyols for polyurethane formulations
dc.creator.none.fl_str_mv Hernández Ramos, Fabio
González Alriols, María
Antxustegi Bengoetxea, Miren Mirari
Labidi Bouchrika, Jalel
Erdocia Iriarte, Xabier
author Hernández Ramos, Fabio
author_facet Hernández Ramos, Fabio
González Alriols, María
Antxustegi Bengoetxea, Miren Mirari
Labidi Bouchrika, Jalel
Erdocia Iriarte, Xabier
author_role author
author2 González Alriols, María
Antxustegi Bengoetxea, Miren Mirari
Labidi Bouchrika, Jalel
Erdocia Iriarte, Xabier
author2_role author
author
author
author
dc.subject.none.fl_str_mv bio-polyol
organosolv lignin
crude glycerol
liquefaction
topic bio-polyol
organosolv lignin
crude glycerol
liquefaction
description Bio-polyols, produced by liquefying lignin with polyhydric alcohols, offer a promising alternative to conventional polyols for polyurethane production. To enhance the sustainability on the production of these bio-polyols, this study proposes the use of crude glycerol and microwave-assisted liquefaction as substitutes for conventional methods and commercial glycerol. This approach reduces the energy requirements of the reaction while also adding value to this by-product. The synthesis of bio-polyols with suitable properties to produce elastic and rigid polyurethane was carried out using previously optimised reaction conditions. Organosolv lignins obtained from Eucalyptus globulus and Pinus radiata were employed, using polyethylene glycol and crude glycerol as solvents and sulphuric acid as a catalyst. Several parameters of the bio-polyols were analysed, including hydroxyl number (IOH), acid number (An), and functionality (f), suggesting that the bio-polyols were suitable for polyurethane synthesis. Bio-polyols formulated to produce rigid polyurethanes exhibited IOH values of 554 and 383 (mg KOH/g), An values of 1.91 and 4.21 (mg KOH/g), and functionalities of 4.16 and 3.14 for Eucalyptus globulus and Pinus radiata lignin. In the case of bio-polyols for elastic polyurethanes, the values were 228 and 173 (mg KOH/g) (IOH), 20.94 and 25.09 (mg KOH/g) (An), and functionalities of 3.51 and 2.08.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/63419
url http://hdl.handle.net/10810/63419
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.sciencedirect.com/science/article/pii/S0141813023027502
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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