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Dry washing biodiesel purification using fumed silica sorbent

2020-04-15Journal article Restricted access
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dc.contributor.authorCatarino, Mónica
dc.contributor.authorFerreira, Eduardo
dc.contributor.authorSoares Dias, A. P.
dc.contributor.authorGomes, João
dc.date.accessioned2021-01-28T10:48:35Z
dc.date.available2021-01-28T10:48:35Z
dc.date.issued2020-04-15
dc.description.abstractAiming the decarbonization of the transport sector, biodiesel, obtained by alcoholysis of oils or animal fats, is currently mixed with conventional fossil diesel. For this purpose, biodiesel has to comply with the established quality standards and, therefore, the production process comprises purification steps, which need huge volumes of water. Thus, the biodiesel purification procedure must be improved in order to provide a greener and low-cost renewable fuel. Biodiesel (FAME) produced by methanolysis of soybean and waste frying oils over a heterogeneous calcium - based catalyst was purified by dry washing, using commercial silica sorbent (Sipernat 22 from Evonik). ATR-FTIR spectra of post-purification sorbents showed that silica was effective to remove unreacted oil species, glycerin and Ca soap from biodiesel and, contrary to the previously reported in the literature, it was also able to remove leached calcium from the biodiesel. For both feedsotcks, the highest purity was reached for the sorption test carried out at 45 degrees C during 60 min. Sorbent regeneration was evaluated using acetone, methanol, and isopropanol alcohols at room temperature during short contact time (5 min for 1 g of sorbent and 20 mL of solvent). All the tested solvents were effective to remove the adsorbed species from silica surface.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCATARINO, Mónica; [et al] – Dry washing biodiesel purification using fumed silica sorbent. Chemical Engineering Journal. ISSN 1385-8947. Vol. 386 (2020), pp. 1-11pt_PT
dc.identifier.doi10.1016/j.cej.2019.123930pt_PT
dc.identifier.eissn1873-3212
dc.identifier.issn1385-8947
dc.identifier.urihttp://hdl.handle.net/10400.21/12718
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPTDC/EMS-ENE/4865/2014 - FCTpt_PT
dc.relationUID/EMS/50022/2019 - FCT, through IDMEC, under LAETApt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S1385894719333455?token=2111F3870FE030695ED7CEFB48CD564894591BABC3D1489A3765A43F83D8996B3D0A97451701E3D4A18F80656A1B5ED9pt_PT
dc.subjectBiodiesel purificationpt_PT
dc.subjectLow-grade fatpt_PT
dc.subjectCa-based catalystpt_PT
dc.subjectDry washpt_PT
dc.subjectSilicapt_PT
dc.subjectSorbent regenerationpt_PT
dc.titleDry washing biodiesel purification using fumed silica sorbentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleChemical Engineering Journalpt_PT
oaire.citation.volume386pt_PT
person.familyNameVieira Soares Pereira Dias
person.familyNameGomes
person.givenNameAna Paula
person.givenNameJoão
person.identifier60203
person.identifier.ciencia-id7711-D804-97B8
person.identifier.ciencia-id0212-E6D6-566C
person.identifier.orcid0000-0002-4585-470X
person.identifier.orcid0000-0003-2579-6669
person.identifier.scopus-author-id56113031900
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationafdbb547-91dc-4d89-a52c-8c3e8f38d4f6
relation.isAuthorOfPublicatione44cd72e-bcbb-4612-a274-60cb1915bc0c
relation.isAuthorOfPublication.latestForDiscoveryafdbb547-91dc-4d89-a52c-8c3e8f38d4f6

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