Biodiesel obtained by ethylic transesterification using CuO, ZnO and CeO<inf>2</inf> supported on bentonite
Abstract This research aims to study the feasibility of using bentonite clays in their natural form, acidified and impregnated with CuO, ZnO and CeO<inf>2</inf> by a microwave-assisted solvothermal method, for use in the production of biodiesel. Characterization of the materials confirme...
| Autores: | , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/177455 |
| Acceso en línea: | http://dx.doi.org/10.1016/j.fuel.2015.07.102 http://hdl.handle.net/11449/177455 |
| Access Level: | acceso abierto |
| Palabra clave: | Biodiesel Cerium oxide Copper oxide Smectite Zinc oxide |
| Sumario: | Abstract This research aims to study the feasibility of using bentonite clays in their natural form, acidified and impregnated with CuO, ZnO and CeO<inf>2</inf> by a microwave-assisted solvothermal method, for use in the production of biodiesel. Characterization of the materials confirmed impregnation on the bentonite. Transesterification reactions were performed using the ethylic route at 200 °C in a Parr reactor for 1, 2 and 4 h. The results indicated that acidified bentonite led to the conversion of triacylglycerides into esters in addition to small amounts of diacylglycerides and monoacylglycerides. However, this material does not lead to the homogeneous impregnation of the oxides on its surface. For the natural bentonite, almost no conversion was obtained for the pure material, but a homogeneous impregnation with zinc oxide was attained, leading to 88% conversion after 4 h of a catalytic test. |
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