Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/106882
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Santos, Samuel | - |
dc.contributor.author | Nobre, Luís | - |
dc.contributor.author | Gomes, João | - |
dc.contributor.author | Puna, Jaime | - |
dc.contributor.author | Quinta-Ferreira, R. M. | - |
dc.contributor.author | Bordado, João | - |
dc.date.accessioned | 2023-04-28T10:37:25Z | - |
dc.date.available | 2023-04-28T10:37:25Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 1996-1073 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/106882 | - |
dc.description.abstract | In this study, micro-structured calcium oxide obtained from the calcination (850 C for 3 h) of Gallus gallus domesticus (chicken) eggshells was used as a catalyst in the transesterification of soybean oil. This catalyst was characterized by Scanning Electron Spectroscopy (SEM) methods. The structure of the obtained CaO showed several agglomerates of white granular solids with a non-regular and unsymmetrical shape. In terms of calcium oxide catalytic activity, three di erent catalyst loadings (1%wt, 3%wt, and 5%wt) were tested for the same reaction conditions, resulting in transesterification yields of 77.27%wt, 84.53%wt, and 85.83%wt respectively. The results were compared to the current literature, and whilst they were lower, they were promising, allowing us to conclude that the tendency of yield improvement for this reaction, when the size range of catalyst particles is to be reduced to a nano scale, can be verified. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | PD/BD/128450/2017 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | biodiesel | pt |
dc.subject | calcium oxide | pt |
dc.subject | transesterification | pt |
dc.subject | eggshell | pt |
dc.subject | solid base heterogeneous catalyst | pt |
dc.subject | micro- and nano-structured catalysts | pt |
dc.title | Soybean Oil Transesterification for Biodiesel Production with Micro-Structured Calcium Oxide (CaO) from Natural Waste Materials as a Heterogeneous Catalyst | pt |
dc.type | article | - |
degois.publication.firstPage | 4670 | pt |
degois.publication.issue | 24 | pt |
degois.publication.title | Energies | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/en12244670 | pt |
degois.publication.volume | 12 | pt |
dc.date.embargo | 2019-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.grantfulltext | open | - |
item.fulltext | Com Texto completo | - |
item.languageiso639-1 | en | - |
crisitem.author.researchunit | CIEPQPF – Chemical Process Engineering and Forest Products Research Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-0762-2641 | - |
Appears in Collections: | FCTUC Eng.Química - Artigos em Revistas Internacionais |
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File | Description | Size | Format | |
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Soybean-oil-transesterification-for-biodiesel-production-with-microstructured-calcium-oxide-CaO-from-natural-waste-materials-as-a-heterogeneous-catalystEnergies.pdf | 1.68 MB | Adobe PDF | View/Open |
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