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Lignin conversion into C4 dicarboxylic acids by catalytic wet peroxide oxidation using titanium silicalite-1

2021Artigo científico Acesso aberto
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dc.contributor.authorVega-Aguilar, Carlos Alberto
dc.contributor.authorBarreiro, M.F.
dc.contributor.authorRodrigues, Alírio
dc.date.accessioned2021-11-17T16:14:05Z
dc.date.available2021-11-17T16:14:05Z
dc.date.issued2021
dc.description.abstractLignin valorisation towards added-value products has become a relevant topic to consolidate a future circular bioeconomy. In this context lignin oxidation to C4 dicarboxylic acids (C4-DCA) by catalytic wet peroxide oxidation is emerging as a value-added strategy, supported by the extensive use of these building blocks in several industrial fields. In this work, lignins from different sources and processes (Indulin AT, Lignol, alkali and E. globulus kraft lignins) were oxidised using H2O2 and titanium silicalite-1 catalyst (TS-1) under different operating conditions (temperature, pH, time, H2O2, and TS-1 load). Indulin AT was the lignin leading to the highest succinic acid yield (11.3 wt%), and TS-1 catalyst enhanced its production four times over the noncatalysed reaction. Malic acid was also produced at high yields, especially for Lignol lignin. The other lignins (E. globulus kraft, and alkali lignins) also produced these C4 acids but at lower yields. The catalyst remained stable at the used experimental conditions, and showed potential to be reused for several cycles without being deactivated. Overall, the catalytic conversion of lignin to C4-DCA can help to guide the pathway to renewable chemicals production.pt_PT
dc.description.sponsorshipThis work was financially supported by: Base Funding - UIDB/50020/2020 of the Associate Laboratory LSRE-LCM - funded by national funds through FCT/MCTES (PIDDAC); Base Funding - UIDB/00690/2020 of CIMO - Centro de Investigação de Montanha—funded by national funds through FCT/MCTES (PIDDAC). COST Action LignoCOST (CA17128). Carlos Vega-Aguilar thanks the Costa Rica Science, Technology and Telecommunications Ministry for the PhD. Scholarship MICITT-PINN-CON-2-1-4-17-1-002. The authors thank Dr. Maria José Sampaio and Prof. Dr. Joaquim Faria (LA LSRE-LCM) for the help with the ATR measurements.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVega-Aguilar, Carlos A.; Barreiro, M.F.; Rodrigues, Alírio (2021). Lignin conversion into C4 dicarboxylic acids by catalytic wet peroxide oxidation using titanium silicalite-1. Industrial Crops and Products. ISSN 0926-6690. 173, p. 1-10pt_PT
dc.identifier.doi10.1016/j.indcrop.2021.114155pt_PT
dc.identifier.issn0926-6690
dc.identifier.urihttp://hdl.handle.net/10198/24223
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLigninpt_PT
dc.subjectDepolymerisationpt_PT
dc.subjectSuccinic acidpt_PT
dc.subjectBiorefinerypt_PT
dc.subjectHydrogen peroxidept_PT
dc.subjectTitanium silicalite-1pt_PT
dc.titleLignin conversion into C4 dicarboxylic acids by catalytic wet peroxide oxidation using titanium silicalite-1pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage114155pt_PT
oaire.citation.titleIndustrial Crops and Productspt_PT
oaire.citation.volume173pt_PT
person.familyNameVega-Aguilar
person.familyNameBarreiro
person.givenNameCarlos
person.givenNameFilomena
person.identifier.ciencia-idB317-9A71-11CC
person.identifier.ciencia-id3418-47D5-5746
person.identifier.orcid0000-0001-8542-8732
person.identifier.orcid0000-0002-6844-333X
person.identifier.ridL-9802-2014
person.identifier.scopus-author-id57216671117
person.identifier.scopus-author-id57188719717
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationad6066dd-2d60-4b44-b14a-5d3ba134b963
relation.isAuthorOfPublication0391987c-ba90-488b-839a-153447ce1f0f
relation.isAuthorOfPublication.latestForDiscoveryad6066dd-2d60-4b44-b14a-5d3ba134b963

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