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Catalytic performance of bulk and Al2O3-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content
dc.contributor.author | Navajas León, Alberto |
dc.contributor.author | Reyero, I. |
dc.contributor.author | Jiménez Barrera, Elena |
dc.contributor.author | Romero Sarria, Francisca |
dc.contributor.author | Llorca Piqué, Jordi |
dc.contributor.author | Gandía, L. M. |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
dc.date.accessioned | 2021-04-20T12:09:47Z |
dc.date.available | 2021-04-20T12:09:47Z |
dc.date.issued | 2020-02 |
dc.identifier.citation | Navajas, A. [et al.]. Catalytic performance of bulk and Al2O3-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content. "Catalysts", Febrer 2020, vol. 10, núm. 2, p. 158:1-158:14. |
dc.identifier.issn | 2073-4344 |
dc.identifier.uri | http://hdl.handle.net/2117/344000 |
dc.description.abstract | Non-edible vegetable oils are characterized by high contents of free fatty acids (FFAs) that prevent from using the conventional basic catalysts for the production of biodiesel. In this work, solid acid catalysts are used for the simultaneous esterification and transesterification with methanol of the FFAs and triglycerides contained in sunflower oil acidified with oleic acid. Molybdenum oxide (MoO3), which has been seldom considered as a catalyst for the production of biodiesel, was used in bulk and alumina-supported forms. Results showed that bulk MoO3 is very active for both transesterification and esterification reactions, but it suffered from severe molybdenum leaching in the reaction medium. When supported on Al2O3, the MoO3 performance improved in terms of active phase utilization and stability though molybdenum leaching remained significant. The improvement of catalytic performance was ascribed to the establishment of MoO3-Al2O3 interactions that favored the anchorage of molybdenum to the support and the formation of new strong acidic centers, although this effect was offset by a decrease of specific surface area. It is concluded that the development of stable catalysts based on MoO3 offers an attractive route for the valorization of oils with high FFAs content. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química |
dc.subject.lcsh | Catalysis |
dc.subject.lcsh | Biodiesel fuels |
dc.subject.other | Acid catalysis |
dc.subject.other | Biodiesel |
dc.subject.other | Biofuel |
dc.subject.other | Esterification |
dc.subject.other | Fatty acid |
dc.subject.other | Methanolysis |
dc.subject.other | Molybdenum oxide |
dc.subject.other | Transesterification |
dc.subject.other | Vegetable oil |
dc.title | Catalytic performance of bulk and Al2O3-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content |
dc.type | Article |
dc.subject.lemac | Catàlisi |
dc.subject.lemac | Biodièsels |
dc.subject.lemac | Biocombustibles |
dc.contributor.group | Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
dc.identifier.doi | 10.3390/catal10020158 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://www.mdpi.com/2073-4344/10/2/158 |
dc.rights.access | Open Access |
local.identifier.drac | 27267899 |
dc.description.version | Postprint (published version) |
local.citation.author | Navajas, A.; Reyero, I.; Jiménez, E.; Romero, F.; Llorca, J.; Gandía, L. |
local.citation.publicationName | Catalysts |
local.citation.volume | 10 |
local.citation.number | 2 |
local.citation.startingPage | 158:1 |
local.citation.endingPage | 158:14 |
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