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Eco Valorization of Eucalyptus globulus Bark and Branches through Liquefaction

2022-04Journal article Open access
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dc.contributor.authorFernandes, Ana Paula
dc.contributor.authorCruz-Lopes, Luísa
dc.contributor.authorDulyanska, Yuliya
dc.contributor.authorDomingos, Idalina
dc.contributor.authorFerreira, José
dc.contributor.authorEvtuguin, Dimitri
dc.contributor.authorEsteves, Bruno
dc.date.accessioned2023-01-12T15:15:25Z
dc.date.available2023-01-12T15:15:25Z
dc.date.issued2022-04
dc.date.updated2023-01-11T18:55:11Z
dc.description.abstractEucalyptus globulus forest residues, bark, and branches, were characterized by wet chemistry methods and involved in the liquefaction process using a glycerol-ethylene glycol reaction mixture (1:1, v/v) catalyzed by strong mineral acid (3% H2SO4) or strong mineral base (6% KOH). The effect of the reaction conditions (temperature and duration) and the particle size on the yield of liquefied products have been evaluated. Acid catalysis revealed remarkably higher yields (25–50%) than when using basic catalyst. It was considered that bark was more vulnerable to liquefaction with respect to particle size than branches. Too high temperatures (>180 °C) are not advantageous regarding the liquefaction yields and, therefore, temperatures around 160–180 °C would be preferable. The best yield for the bark sample (>80 mesh fraction) was obtained at 180 °C for 60 min (61.6%), while for the branches the best yield was obtained at 160 °C for 60 min (62.2%). Under compromised conditions (180 °C for 60 min), the fine fraction (>80 mesh) of bark and branches did not show significant differences between their liquefaction yields and can be processed together while adjusting the suitable processing time. The main advantage of the use of these residues instead of solid wood is that it would bring the Forest managing companies a much higher income for their wastes that are usually burned and the use of lignocellulosic materials in detriment of petroleum-based materials for the production of polymers would make industry less dependent on oil prices fluctuations.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFernandes, A., Cruz-Lopes, L., Dulyanska, Y., Domingos, I., Ferreira, J., Evtuguin, D., & Esteves, B. (2022). Eco Valorization of Eucalyptus globulus Bark and Branches through Liquefaction. Applied Sciences, 12(8), Art. 8. https://doi.org/10.3390/app12083775pt_PT
dc.identifier.doi10.3390/app12083775pt_PT
dc.identifier.slugcv-prod-2998823
dc.identifier.urihttp://hdl.handle.net/10400.19/7524
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationPROJ/IPV/ID&I/003pt_PT
dc.subjectbarkpt_PT
dc.subjectbranchespt_PT
dc.subjectEucalyptus globuluspt_PT
dc.subjectlow temperature liquefactionpt_PT
dc.subjectoptimization; wastespt_PT
dc.titleEco Valorization of Eucalyptus globulus Bark and Branches through Liquefactionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue8pt_PT
oaire.citation.startPage3775pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume12pt_PT
person.familyNameGonçalves Oliveira Valente da Cruz-Lopes
person.familyNameDomingos
person.familyNameFerreira
person.familyNameEsteves
person.givenNameLuísa Paula
person.givenNameidalina
person.givenNameJosé
person.givenNameBruno
person.identifier2119255
person.identifier.ciencia-id7916-0833-5B38
person.identifier.ciencia-id7116-E1DE-88E7
person.identifier.ciencia-idB81E-BE45-E128
person.identifier.ciencia-id521B-63A7-B248
person.identifier.orcid0000-0001-6502-7202
person.identifier.orcid0000-0002-4308-1563
person.identifier.orcid0000-0001-7596-8065
person.identifier.orcid0000-0001-6660-3128
person.identifier.ridC-2173-2012
person.identifier.scopus-author-id24281086400
person.identifier.scopus-author-id18133647300
person.identifier.scopus-author-id57202554441
rcaap.cv.cienciaid521B-63A7-B248 | Bruno Miguel Morais Lemos Esteves
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication50134ab7-55eb-4e8a-a5ea-5cc54b1468e3
relation.isAuthorOfPublication7d09c228-3415-4272-9299-89c6951565d7
relation.isAuthorOfPublicationa3351493-41e8-4758-acae-39e3382d0b04
relation.isAuthorOfPublication.latestForDiscoveryfa1274f5-f7f8-4afd-8ed8-5f988d6c7226

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