Production of a Biofuel that Keeps the Glycerol as a Monoglyceride by Using Supported KF as Heterogeneous Catalyst
| Autor: | Gema Cumplido, Diego Luna, Antonio A. Romero, Alejandro Posadillo, Enrique D. Sancho, Juan Calero, Cristóbal Verdugo-Escamilla, Carlos Luna, Felipa M. Bautista |
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| Přispěvatelé: | Junta de Andalucía, Ministerio de Economía y Competitividad (España), Consejo Superior de Investigaciones Científicas (España) |
| Rok vydání: | 2014 |
| Předmět: |
Control and Optimization
food.ingredient monoacylglycerol Energy Engineering and Power Technology biodiesel Heterogeneous catalysis lcsh:Technology Catalysis jel:Q40 chemistry.chemical_compound food jel:Q jel:Q43 jel:Q42 Glycerol jel:Q41 Organic chemistry jel:Q48 Monoacylglycerol jel:Q47 supported KF Electrical and Electronic Engineering Engineering (miscellaneous) jel:Q49 Biodiesel Renewable Energy Sustainability and the Environment lcsh:T Sunflower oil sunflower oil methanolysis Methanolysis jel:Q0 Transesterification Monoglyceride jel:Q4 Supported KF chemistry Methanol Energy (miscellaneous) Nuclear chemistry |
| Zdroj: | Energies 7(6), 3764-3780 (2014) Helvia. Repositorio Institucional de la Universidad de Córdoba instname Energies, Vol 7, Iss 6, Pp 3764-3780 (2014) Energies; Volume 7; Issue 6; Pages: 3764-3780 Digital.CSIC. Repositorio Institucional del CSIC |
| Popis: | This study describes the results obtained in the synthesis of a biofuel that avoids the production of glycerol by applying supported KF as alkaline heterogeneous catalyst, to generate two moles of fatty acid methyl esters and one mole of monoglyceride from one mol of triglyceride. In this respect, the selective transesterification process of sunflower oil with methanol was carried out with KF (10 wt%) supported on three different solids, Al2O3, ZnO and MgO. The standard experimental conditions employed in the heterogeneous selective methanolysis reaction were: 12 mL of sunflower oil, 2.7 mL of methanol, 0.8 g of catalyst, at 65 °C temperature and one hour of reaction time. In all cases 100% conversion was obtained, with high selectivity values, greater than 90%, and quite suitable viscosity values, 4.5-8.5 cSt. In this way, the best catalytic behavior in the first use was obtained by using Al2O3 as support. However, although in the five consecutive reuses all catalysts exhibited a continuous decrease in their catalytic activities; the lower one was for KF catalyst using MgO as support. In summary, these three KF supported catalysts are very suitable to obtain a new biofuel, similar to conventional biodiesel, applicable to diesel engines. © 2014 by the authors. Grants from the Spanish Ministry of Economy and Competitiveness (Project ENE 2011-27017), Spanish Ministry of Education and Science (Projects CTQ2010-18126 and CTQ2011-28954-C02-02), FEDER funds and Junta de Andalucía FQM 0191, PO8-RMN-03515 and P11-TEP-7723 are gratefully acknowledged by the authors. We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI) |
| Databáze: | OpenAIRE |
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