Logo do repositório
 
Publicação

Cork waste-based adsorbents for glycerol removal from biodiesel: a sustainable alternative to wet washing

2025Artigo científico Acesso aberto
Ver registo simples
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosEngenharia e Tecnologia::Biotecnologia Ambiental
datacite.subject.sdg04:Educação de Qualidade
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorGarção, Maria Isabella Lima
dc.contributor.authorMilani, Eduardo C.
dc.contributor.authorCamilo, Gabriel L.
dc.contributor.authorDiaz De Tuesta, Jose Luis
dc.contributor.authorGomes, Maria Carolina Sérgi
dc.contributor.authorRibeiro, António E.
dc.contributor.authorQueiroz, Ana
dc.contributor.authorBrito, Paulo
dc.date.accessioned2025-11-21T15:00:50Z
dc.date.available2025-11-21T15:00:50Z
dc.date.issued2025
dc.description.abstractThis work aims to use activated carbon from industrial cork waste as a novel method for glycerol removal from crude biodiesel produced using waste cooking oil, combining two residues to obtain both high-quality biodiesel and highly adsorbent activated carbon. The study first optimizes the biodiesel production conditions, achieving the highest ester yield at 30 degrees C, with a 1:9 oil-to-ethanol molar ratio, 1 wt.% NaOH catalyst, and a reaction time of 1 h. Additionally, activated carbons were prepared and characterized from cork waste, showing significantly higher BET surface areas than the raw material. The most promising cork-based materials were then applied to optimize glycerol removal from crude biodiesel through adsorption. A preliminary study identified milled raw cork and its KOH-activated carbon (SBET = 2057 m2/g) as the most effective. Kinetic and equilibrium studies demonstrated that optimal glycerol removal was achieved after 6 h at 25 degrees C using 2 wt.% of KOH-activated cork-based adsorbent, resulting in 88% glycerol removal and a final glycerol content of 0.017 wt.%. These findings demonstrate that cork waste-derived activated carbon is highly effective for biodiesel purification, successfully meeting the quality specifications required by European Standard EN 14214:2012+A2:2019 and offering an innovative solution for waste valorization and sustainable fuel production.eng
dc.description.sponsorshipThis work was supported by national funds through FCT/MCTES (PIDDAC): CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/2020) and UIDP/00690/2020 (DOI: 10.54499/UIDP/00690/2020); and SusTEC, LA/P/0007/2020 (DOI:10.54499/LA/P/0007/2020). Jose L. Diaz De Tuesta acknowl-edges the financial support through the program of Atracción al Talento of Comunidad de Madrid (Spain) forthe individual research grant and project 2022-T1/AMB-23946.
dc.identifier.citationGarção, Maria Isabella Lima; Milani, Eduardo Candido; Camilo, Gabriel Lamino; Diaz De Tuesta, Jose L.; Gomes, Maria Carolina Sérgi; Ribeiro, António E.; Queiroz, Ana; Brito, Paulo (2025) Cork waste-based adsorbents for glycerol removal from biodiesel: a sustainable alternative to wet washing. ISSN 1759-7269. p. 1-17
dc.identifier.doi10.1080/17597269.2025.2517453
dc.identifier.issn1759-7269
dc.identifier.issn1759-7277
dc.identifier.urihttp://hdl.handle.net/10198/35128
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInforma UK Limited
dc.relationMountain Research Center
dc.relationBio-based amines from renewable resources through catalytic sustainable processes (BIO2BIA)
dc.relation.ispartofBiofuels
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/
dc.subjectBiodiesel purification
dc.subjectGlycerol removal
dc.subjectAdsorption equilibrium
dc.subjectAdsorption kinetics
dc.subjectActivated carbon
dc.titleCork waste-based adsorbents for glycerol removal from biodiesel: a sustainable alternative to wet washingeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleBio-based amines from renewable resources through catalytic sustainable processes (BIO2BIA)
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 3ed/2020.01614.CEECIND%2FCP1596%2FCT0007/PT
oaire.citation.endPage17
oaire.citation.startPage1
oaire.citation.titleBiofuels
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 3ed
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameRibeiro
person.familyNameQueiroz
person.familyNameBrito
person.givenNameAntónio E.
person.givenNameAna
person.givenNamePaulo
person.identifier.ciencia-id3211-D5B0-870D
person.identifier.ciencia-id2611-D40C-3472
person.identifier.ciencia-idA31A-D845-A6E2
person.identifier.orcid0000-0003-4569-7887
person.identifier.orcid0000-0003-4761-0618
person.identifier.orcid0000-0003-1805-0252
person.identifier.ridO-8367-2015
person.identifier.scopus-author-id23390701300
person.identifier.scopus-author-id31168231800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication52666376-f100-4407-87ef-dc5df3613761
relation.isAuthorOfPublication508436a2-5db1-481e-9c48-eab160333d61
relation.isAuthorOfPublication0370deac-dc4e-4b3d-8e1f-fc2d117794d2
relation.isAuthorOfPublication.latestForDiscovery52666376-f100-4407-87ef-dc5df3613761
relation.isProjectOfPublication0aac8939-28c2-46f4-ab6b-439dba7f9942
relation.isProjectOfPublication4e779d62-209f-4c24-94cc-916e78b8e770
relation.isProjectOfPublication.latestForDiscovery0aac8939-28c2-46f4-ab6b-439dba7f9942

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
Cork washing.pdf
Tamanho:
2.12 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
1.75 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

CIMO - Artigos em Revistas Indexados à WoS/Scopus