Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling

In order to diminish the dependence on oil lignin, which is the most abundant biopolymer of phenolic origin on Earth and can be utilised in different industrial endeavours, such as, the production of polyurethanes. In this study, hardwood (Eucalyptus globulus) and softwood (Pinus radiata) organosolv...

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Autores: Hernández Ramos, Fabio, Noví, Vincent, González Alriols, María, Labidi Bouchrika, Jalel, Erdocia Iriarte, Xabier
Tipo de documento: artigo
Data de publicação:2023
País:España
Recursos:Universidad del País Vasco
Repositório:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61807
Acesso em linha:http://hdl.handle.net/10810/61807
Access Level:Acceso aberto
Palavra-chave:lignin
bio-polyol
liquefaction
response surface methodology
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spelling Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modellingHernández Ramos, FabioNoví, VincentGonzález Alriols, MaríaLabidi Bouchrika, JalelErdocia Iriarte, Xabierligninbio-polyolliquefactionresponse surface methodologyIn order to diminish the dependence on oil lignin, which is the most abundant biopolymer of phenolic origin on Earth and can be utilised in different industrial endeavours, such as, the production of polyurethanes. In this study, hardwood (Eucalyptus globulus) and softwood (Pinus radiata) organosolv lignins were employed to produce bio-polyols trough microwave-assisted liquefaction. The resulting bio-polyols possessed specific properties to be employed in the synthesis of rigid and elastic polyurethanes. The values of the reaction parameter were optimized using response surface methodology to determine the most effective conditions for producing bio-polyols from both types of lignins for the purpose of rigid and elastic polyurethane formulation. The effect of catalyst concentration (%wt.), temperature (ºC) and Polyethylene glycol/Glycerol weight ratio on the molecular weight (Mw) and hydroxyl number (IOH) of bio-polyols was evaluated. The optimum reaction conditions of bio-polyols production for rigid polyurethanes were virtually equal for the two lignins, 159–161 ºC, Polyethylene glycol/Glycerol ratio of 3 without catalyst. On the contrary, the bio-polyols for elastic polyurethanes required different reaction parameters depending on the lignin used. For hardwood lignin the optimised conditions were 180 ºC, 7.57 (Polyethylene glycol/Glycerol ratio) and 5.00% of catalyst while for softwood lignin were 160 ºC, 7.34 (Polyethylene glycol/Glycerol) and 3.85% of catalyst. Additionally, the bio-polyols obtained at optimised conditions were fully characterised and acid number, polydispersity index, functionality and the rheological behaviour was studied.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/10810/61807reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.sciencedirect.com/science/article/pii/S0926669023004946info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 22023 The Author(s). 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:10810/618072026-06-18T09:23:17Z
dc.title.none.fl_str_mv Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
title Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
spellingShingle Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
Hernández Ramos, Fabio
lignin
bio-polyol
liquefaction
response surface methodology
title_short Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
title_full Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
title_fullStr Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
title_full_unstemmed Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
title_sort Optimisation of lignin liquefaction with polyethylene glycol/ glycerol through response surface methodology modelling
dc.creator.none.fl_str_mv Hernández Ramos, Fabio
Noví, Vincent
González Alriols, María
Labidi Bouchrika, Jalel
Erdocia Iriarte, Xabier
author Hernández Ramos, Fabio
author_facet Hernández Ramos, Fabio
Noví, Vincent
González Alriols, María
Labidi Bouchrika, Jalel
Erdocia Iriarte, Xabier
author_role author
author2 Noví, Vincent
González Alriols, María
Labidi Bouchrika, Jalel
Erdocia Iriarte, Xabier
author2_role author
author
author
author
dc.subject.none.fl_str_mv lignin
bio-polyol
liquefaction
response surface methodology
topic lignin
bio-polyol
liquefaction
response surface methodology
description In order to diminish the dependence on oil lignin, which is the most abundant biopolymer of phenolic origin on Earth and can be utilised in different industrial endeavours, such as, the production of polyurethanes. In this study, hardwood (Eucalyptus globulus) and softwood (Pinus radiata) organosolv lignins were employed to produce bio-polyols trough microwave-assisted liquefaction. The resulting bio-polyols possessed specific properties to be employed in the synthesis of rigid and elastic polyurethanes. The values of the reaction parameter were optimized using response surface methodology to determine the most effective conditions for producing bio-polyols from both types of lignins for the purpose of rigid and elastic polyurethane formulation. The effect of catalyst concentration (%wt.), temperature (ºC) and Polyethylene glycol/Glycerol weight ratio on the molecular weight (Mw) and hydroxyl number (IOH) of bio-polyols was evaluated. The optimum reaction conditions of bio-polyols production for rigid polyurethanes were virtually equal for the two lignins, 159–161 ºC, Polyethylene glycol/Glycerol ratio of 3 without catalyst. On the contrary, the bio-polyols for elastic polyurethanes required different reaction parameters depending on the lignin used. For hardwood lignin the optimised conditions were 180 ºC, 7.57 (Polyethylene glycol/Glycerol ratio) and 5.00% of catalyst while for softwood lignin were 160 ºC, 7.34 (Polyethylene glycol/Glycerol) and 3.85% of catalyst. Additionally, the bio-polyols obtained at optimised conditions were fully characterised and acid number, polydispersity index, functionality and the rheological behaviour was studied.
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/10810/61807
url http://hdl.handle.net/10810/61807
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/S0926669023004946
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 15,301603

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