Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments

An original pathway to renewable production of phenol-rich bio-oil by fast pyrolysis of pretreated olive pomace (OP) was researched. However, inherent inorganic elements (especially alkali and alkaline earth metals) in biomass feedstocks largely modified the final bio-oil composition. To alter their...

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Autores: Alcázar Ruiz, Ángel, Dorado Fernández, Fernando, Sánchez Silva, María Luz
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/36313
Acceso en línea:https://hdl.handle.net/10578/36313
Access Level:acceso abierto
Palabra clave:Olive pomace
Fast pyrolysis
Demineralization pretreatment
Renewable phenolics
Guaiacol
Syringol
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spelling Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatmentsAlcázar Ruiz, ÁngelDorado Fernández, FernandoSánchez Silva, María LuzOlive pomaceFast pyrolysisDemineralization pretreatmentRenewable phenolicsGuaiacolSyringolAn original pathway to renewable production of phenol-rich bio-oil by fast pyrolysis of pretreated olive pomace (OP) was researched. However, inherent inorganic elements (especially alkali and alkaline earth metals) in biomass feedstocks largely modified the final bio-oil composition. To alter their catalytic activity in fast pyrolysis, different demineralisation processes (water, acid and alkali pretreatments) were employed. There was also an in-depth study of bio-oil phenolic compounds, analysing the oxygen-containing substituted groups linked to the benzene ring. From water leached samples, potassium was largely removed, enhancing the selective production of guaiacol (at room temperature) and syringol (at T = 90 ºC). Important differences were observed with HCl and HNO3 pretreatments regarding carboxylic acid and phenolic distribution. For pretreatment with NaOH, the sodium content in the sample was observed to increase to 83%. Thus, optimal phenolic selectivity (36.9%) was achieved for the alkali pretreated OP sample, where guaiacol (5.9%) and vinyl guaiacol (6.2%) yields increased and methyl guaiacol decreased. This study marks an efficient and clean pathway for converting agricultural waste into valuable phenolic enriched bio-oil. This could constitute a new way of obtaining these compounds by using renewable agriculture biomass.Elsevier202420242023info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10578/36313reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésSBPLY/17/180501/000238info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/oai:ruidera.uclm.es:10578/363132026-05-27T07:36:41Z
dc.title.none.fl_str_mv Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
title Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
spellingShingle Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
Alcázar Ruiz, Ángel
Olive pomace
Fast pyrolysis
Demineralization pretreatment
Renewable phenolics
Guaiacol
Syringol
title_short Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
title_full Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
title_fullStr Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
title_full_unstemmed Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
title_sort Bio-phenolic compounds production through fast pyrolysis: Demineralizing olive pomace pretreatments
dc.creator.none.fl_str_mv Alcázar Ruiz, Ángel
Dorado Fernández, Fernando
Sánchez Silva, María Luz
author Alcázar Ruiz, Ángel
author_facet Alcázar Ruiz, Ángel
Dorado Fernández, Fernando
Sánchez Silva, María Luz
author_role author
author2 Dorado Fernández, Fernando
Sánchez Silva, María Luz
author2_role author
author
dc.subject.none.fl_str_mv Olive pomace
Fast pyrolysis
Demineralization pretreatment
Renewable phenolics
Guaiacol
Syringol
topic Olive pomace
Fast pyrolysis
Demineralization pretreatment
Renewable phenolics
Guaiacol
Syringol
description An original pathway to renewable production of phenol-rich bio-oil by fast pyrolysis of pretreated olive pomace (OP) was researched. However, inherent inorganic elements (especially alkali and alkaline earth metals) in biomass feedstocks largely modified the final bio-oil composition. To alter their catalytic activity in fast pyrolysis, different demineralisation processes (water, acid and alkali pretreatments) were employed. There was also an in-depth study of bio-oil phenolic compounds, analysing the oxygen-containing substituted groups linked to the benzene ring. From water leached samples, potassium was largely removed, enhancing the selective production of guaiacol (at room temperature) and syringol (at T = 90 ºC). Important differences were observed with HCl and HNO3 pretreatments regarding carboxylic acid and phenolic distribution. For pretreatment with NaOH, the sodium content in the sample was observed to increase to 83%. Thus, optimal phenolic selectivity (36.9%) was achieved for the alkali pretreated OP sample, where guaiacol (5.9%) and vinyl guaiacol (6.2%) yields increased and methyl guaiacol decreased. This study marks an efficient and clean pathway for converting agricultural waste into valuable phenolic enriched bio-oil. This could constitute a new way of obtaining these compounds by using renewable agriculture biomass.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10578/36313
url https://hdl.handle.net/10578/36313
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv SBPLY/17/180501/000238
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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