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On the storage stability of CaO biodiesel catalyst: hydration and carbonation poisoning

2021-02Journal article Restricted access
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dc.contributor.authorSoares Dias, A. P.
dc.contributor.authorRamos, Marta
dc.date.accessioned2021-06-07T14:13:48Z
dc.date.available2021-06-07T14:13:48Z
dc.date.issued2021-02
dc.description.abstractLime based catalysts are reported to be active in oil alcoholysis, biodiesel production, but their sensitivity to moisture and atmospheric CO2 can hinder their use at the industrial level because it is suspected that they must be manipulated in a controlled atmosphere. The storage stability of lime catalyst was investigated for 180 days (temperature in the range 20-38 degrees C, relative humidity higher than 40%). Catalytic data showed biodiesel yields ranging from 87.5%, for the first day, to 79.4% for the 180th day, passing through a maximum of 91.5% obtained in the 30th day of storage. Hydration was mainly a surface process since the Ca(OH)(2) bulk phase was detected only at the end of the storage period. A catalyst stored for 10 mounts was successfully reactivated by annealing at 470 degrees C thus proving that CaO material is stable enough during storage and handling to be used as a biodiesel catalyst.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDIAS, Ana Paula Soares; RAMOS, Marta – On the storage stability of CaO biodiesel catalyst. Hydration and carbonation poisoning. Journal of Environmental Chemical Engineering. eISSN 2213-3437. Vol. 9, N.º 1 (2021), pp. 1-11pt_PT
dc.identifier.doi10.1016/j.jece.2020.104917pt_PT
dc.identifier.eissn2213-3437
dc.identifier.urihttp://hdl.handle.net/10400.21/13423
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPTDC/EMS-ENE/4865/2014 - FCTpt_PT
dc.relationUIDB/50022/2020 - FCT, through IDMEC, under LAETApt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S2213343720312665?token=137E1B3F29CDE5B35525CEE7A5D373923CCCA4670F3D5B1F125F986D4E6AB1C85D8792BFA996B6506013050D4117931C&originRegion=eu-west-1&originCreation=20210607140737pt_PT
dc.subjectBiodieselpt_PT
dc.subjectLime catalystpt_PT
dc.subjectCatalyst agingpt_PT
dc.subjectReactivationpt_PT
dc.titleOn the storage stability of CaO biodiesel catalyst: hydration and carbonation poisoningpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage11pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Environmental Chemical Engineeringpt_PT
oaire.citation.volume9pt_PT
person.familyNameVieira Soares Pereira Dias
person.familyNameRamos
person.givenNameAna Paula
person.givenNameMarta
person.identifier.ciencia-id7711-D804-97B8
person.identifier.ciencia-idF813-1438-B3B9
person.identifier.orcid0000-0002-4585-470X
person.identifier.orcid0000-0003-4967-4850
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationafdbb547-91dc-4d89-a52c-8c3e8f38d4f6
relation.isAuthorOfPublicationa222a978-68bc-4036-98ca-a85d54aff4aa
relation.isAuthorOfPublication.latestForDiscoveryafdbb547-91dc-4d89-a52c-8c3e8f38d4f6

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