Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers

Olive tree pruning was delignified by organosolv processes (acetosolv, formosolv and acetosolv/formosolv) to extract different lignins. The obtained lignins (acetosolv lignin (AL), formosolv lignin (FL) and acetosolv/formosolv lignin (AFL)), were depolymerized using three different solvents (methano...

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Autores: Erdocia Iriarte, Xabier, Prado García, Raquel, Fernández Rodríguez, Javier, Labidi Bouchrika, Jalel
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/64875
Acceso en línea:http://hdl.handle.net/10810/64875
Access Level:acceso abierto
Palabra clave:lignin
supercritical solvents
depolymerization
monomeric phenols
solvolysis
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spelling Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomersErdocia Iriarte, XabierPrado García, RaquelFernández Rodríguez, JavierLabidi Bouchrika, Jalelligninsupercritical solventsdepolymerizationmonomeric phenolssolvolysisOlive tree pruning was delignified by organosolv processes (acetosolv, formosolv and acetosolv/formosolv) to extract different lignins. The obtained lignins (acetosolv lignin (AL), formosolv lignin (FL) and acetosolv/formosolv lignin (AFL)), were depolymerized using three different solvents (methanol, ethanol, acetone) under supercritical conditions in a batch reactor to produce high value added compounds. The recovered products (oil, char and residual lignin) were analyzed in order to determine their composition and to know the influence of employed solvent and lignin. Lignin was successfully depolymerized in all cases, and molecular weight of residual lignin was significantly reduced compared to raw lignin. The obtained oil had numerous phenolic monomers being syringol and guaiacol the main products in all studied cases. Depolymerization of AFL led to maximum yield of oil (38.04%) and acetone was the best solvent in terms of phenolic monomers production.The authors thank the Department of Education, Universities and Investigation of the Basque Government (project IT672-13) and the Spanish Ministry of Economy and Competitiveness (project CTQ2013-41246-R) for financially supporting this workACS202420242015info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/64875reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/CTQ2013-41246-R/https://pubs.acs.org/doi/10.1021/acssuschemeng.5b01377info:eu-repo/semantics/openAccess© 2015, American Chemical Societyoai:addi.ehu.eus:10810/648752026-06-18T09:23:17Z
dc.title.none.fl_str_mv Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
title Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
spellingShingle Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
Erdocia Iriarte, Xabier
lignin
supercritical solvents
depolymerization
monomeric phenols
solvolysis
title_short Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
title_full Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
title_fullStr Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
title_full_unstemmed Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
title_sort Depolymerization of different organosolv lignins in supercritical methanol, ethanol and acetone to produce phenolic monomers
dc.creator.none.fl_str_mv Erdocia Iriarte, Xabier
Prado García, Raquel
Fernández Rodríguez, Javier
Labidi Bouchrika, Jalel
author Erdocia Iriarte, Xabier
author_facet Erdocia Iriarte, Xabier
Prado García, Raquel
Fernández Rodríguez, Javier
Labidi Bouchrika, Jalel
author_role author
author2 Prado García, Raquel
Fernández Rodríguez, Javier
Labidi Bouchrika, Jalel
author2_role author
author
author
dc.subject.none.fl_str_mv lignin
supercritical solvents
depolymerization
monomeric phenols
solvolysis
topic lignin
supercritical solvents
depolymerization
monomeric phenols
solvolysis
description Olive tree pruning was delignified by organosolv processes (acetosolv, formosolv and acetosolv/formosolv) to extract different lignins. The obtained lignins (acetosolv lignin (AL), formosolv lignin (FL) and acetosolv/formosolv lignin (AFL)), were depolymerized using three different solvents (methanol, ethanol, acetone) under supercritical conditions in a batch reactor to produce high value added compounds. The recovered products (oil, char and residual lignin) were analyzed in order to determine their composition and to know the influence of employed solvent and lignin. Lignin was successfully depolymerized in all cases, and molecular weight of residual lignin was significantly reduced compared to raw lignin. The obtained oil had numerous phenolic monomers being syringol and guaiacol the main products in all studied cases. Depolymerization of AFL led to maximum yield of oil (38.04%) and acetone was the best solvent in terms of phenolic monomers production.
publishDate 2015
dc.date.none.fl_str_mv 2015
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/64875
url http://hdl.handle.net/10810/64875
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/CTQ2013-41246-R/
https://pubs.acs.org/doi/10.1021/acssuschemeng.5b01377
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
© 2015, American Chemical Society
eu_rights_str_mv openAccess
rights_invalid_str_mv © 2015, American Chemical Society
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ACS
publisher.none.fl_str_mv ACS
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 15.300719

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