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Valorization of lignin side-streams into polyols and rigid polyurethane foams—a contribution to the pulp and paper industry biorefinery

2021Journal article Open access
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dc.contributor.authorPinto, João A.
dc.contributor.authorFernandes, Isabel P.
dc.contributor.authorPinto, Virgínia
dc.contributor.authorGomes, Elson
dc.contributor.authorOliveira, Cátia F.
dc.contributor.authorPinto, Paula C.R.
dc.contributor.authorMesquita, L.M.R.
dc.contributor.authorPiloto, P.A.G.
dc.contributor.authorRodrigues, Alírio
dc.contributor.authorBarreiro, M.F.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-23T10:12:02Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-23T10:12:02Z
dc.date.issued2021
dc.description.abstractValorization of industrial low-value side-streams are of great interest, contributing to boosts in the circular economy. In this context, lignin side-streams of the pulp and paper industry were oxypropylated to produce biobased polyols and tested in the synthesis of rigid polyurethane (RPU) foams. E. globulus lignins, namely a lignin isolated from an industrial Kraft black liquor and depolymerized lignins obtained as by-products of an oxidation process, were used. RPU foams, synthesized with 100% lignin-based polyols and using a 1.1 NCO/OH ratio, were characterized concerning apparent density, morphology, thermal conductivity, thermal stability, and heat release rate (HRR). Foams containing the lignin-based polyols presented densities varying from 44.7 to 112.2 kg/m3 and thermal conductivity in the range of 37.2–49.0 mW/mK. For the reference foam (sample produced with 100% wt. Daltofoam TP 32015 polyol), values of 70.9 kg/m3 and 41.1 mW/mK were obtained, respectively. The achieved results point out the viability of using the generated lignin-based polyols at 100% content in RPU foams, mainly when depolymerized lignins are used. Moreover, fire retardancy was favored when the lignin-based polyols were introduced. The proposed strategies can contribute to establishing the integrated pulp and paper biorefinery concept where material synthesis (polyols and RPU foams) can be combined with chemical production (vanillin and syringaldehyde).en_EN
dc.description.sponsorshipFoundation for Science and Technology (FCT, Portugal) and FEDER under Program PT2020 for financial support to CIMO (UIDB/00690/2020), and to UIDB/50020/2020 of the Associate Laboratory LSRE-LCM—funded by national funds through FCT/MCTES (PIDDAC); national funding by FCT, PI, through the institutional scientific employment program contract for Isabel P. Fernandes. This work was carried out under the Project No. 33969 Bioblocks—Design of biobased products from renewable lignocellulosic sources as precursors for the bioindustry of chemical synthesis and biomaterials—financed by FEDER through the Operational Program for Competitiveness Factors (POFC) and QREN. To COST Action LignoCOST (CA17128) supported by COST (European Cooperation in Science and Technology).
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationPinto, João A.; Fernandes, Isabel P.; Pinto, Virginia D.; Gomes, Elson; Oliveira, Cátia F.; Pinto, Paula C.R.; Mesquita, Luís M.R.; Piloto, Paulo A.G.; Rodrigues, Alírio E.; Barreiro, Maria Filomena (2021). Valorization of lignin side-streams into polyols and rigid polyurethane foams - a contribution to the pulp and paper industry biorefinery. Energies. ISSN 1996-1073. 14:13, p. 1-16en_EN
dc.identifier.doi10.3390/en14133825en_EN
dc.identifier.urihttp://hdl.handle.net/10198/24312
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationMountain Research Center
dc.relationLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
dc.subjectBiorefineryen_EN
dc.subjectDepolymerized ligninsen_EN
dc.subjectFlame retardant propertiesen_EN
dc.subjectLignin side-streamsen_EN
dc.subjectLignin-based polyolsen_EN
dc.subjectRigid polyurethane foamsen_EN
dc.titleValorization of lignin side-streams into polyols and rigid polyurethane foams—a contribution to the pulp and paper industry biorefineryen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleLaboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50020%2F2020/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePinto
person.familyNameFernandes
person.familyNameMesquita
person.familyNamePiloto
person.familyNameBarreiro
person.givenNameJoão A.
person.givenNameIsabel P.
person.givenNameLuís M.R.
person.givenNamePaulo A.G.
person.givenNameFilomena
person.identifier1339117
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person.identifier.orcid0000-0003-2834-0501
person.identifier.orcid0000-0002-6844-333X
person.identifier.ridL-1552-2016
person.identifier.ridF-2269-2010
person.identifier.ridB-4866-2008
person.identifier.ridL-9802-2014
person.identifier.scopus-author-id57208035714
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person.identifier.scopus-author-id8585923500
person.identifier.scopus-author-id6506406159
person.identifier.scopus-author-id57188719717
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
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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