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dc.contributor.author
Ferrero, Gabriel Orlando
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dc.contributor.author
Almeida, Manuel Fonseca
dc.contributor.author
Alvim-Ferraz, Maria da Conceição Machado
dc.contributor.author
Dias, Joana Maia
dc.date.available
2018-01-17T16:10:53Z
dc.date.issued
2014-01
dc.identifier.citation
Dias, Joana Maia; Ferrero, Gabriel Orlando; Almeida, Manuel Fonseca; Alvim-Ferraz, Maria da Conceição Machado; Water-free process for eco-friendly purification of biodiesel obtained using a heterogeneous Ca-based catalyst; Elsevier Science; Fuel Processing Technology; 121; 1-2014; 114-118
dc.identifier.issn
0378-3820
dc.identifier.uri
http://hdl.handle.net/11336/33600
dc.description.abstract
The technologies conventionally used for biodiesel purification imply high consumptions of both energy and water. In the present work, biodiesel was produced by transesterification using a very active calcium glyceroxide catalyst and purified using water-free processes. The study focused on soaps removal that was the main product impurity. The best results were obtained when the crude biodiesel (methyl ester content of 90.2–91.2 wt.% and calcium content of 372–393 ppm) was pretreated with Na2CO3 and afterward treated by an ion-exchange resin (6 wt.%) or a ceramic membrane (0.1 μm). The purification was effective using biodiesel produced from both soybean oil and waste frying oil and the quality of the product agreed with the one obtained using the conventional water washing process. The effectiveness of the treatment could be explained by calcium elimination through precipitation as CaCO3 during pretreatment and sodium soaps removal by absorption into the resin or filtration by the ceramic membrane, according to the micelle formation mechanism. The studied process presents a high potential to remove calcium soaps from biodiesel.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Biodiesel Purification
dc.subject
Calcium Soap
dc.subject
Resin
dc.subject
Membrane
dc.subject.classification
Ingeniería Medioambiental y Geológica, Geotécnicas
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dc.subject.classification
Ingeniería del Medio Ambiente
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Water-free process for eco-friendly purification of biodiesel obtained using a heterogeneous Ca-based catalyst
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-01-17T15:01:08Z
dc.journal.volume
121
dc.journal.pagination
114-118
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Filadelfia
dc.description.fil
Fil: Ferrero, Gabriel Orlando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Porto; Portugal
dc.description.fil
Fil: Almeida, Manuel Fonseca. Universidad de Porto; Portugal
dc.description.fil
Fil: Alvim-Ferraz, Maria da Conceição Machado. Universidad de Porto; Portugal
dc.description.fil
Fil: Dias, Joana Maia. Universidad de Porto; Portugal
dc.journal.title
Fuel Processing Technology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.fuproc.2014.01.020
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378382014000307
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