Uso de catalisadores heterogéneos na obtenção de biodiesel a partir do óleo de jatropha curcas L.

Abstract

The environmental impact resulting from the processing and burning of fossil fuels has concerned the scientific community and society in general. Among non-renewable sources, the petroleum is the most processed energy source in the world, during the use of its derivatives produce substances that damage the environment. In this context, the scientific community has continuously investigated the feasibility of fuel production from renewable sources. The use of biodiesel as an alternative to diesel oil has been growing accelerated worldwide, as the production chain for this fuel has a potential promising in several sectors, such as social, environmental and technological. This work talks about the use of heterogeneous catalysts in the production of biodiesel from oil of Jatropha curcas L. Calcium oxide was obtained from solid residues and a mixed oxide of calcium and aluminum was obtained using the coprecipitation method. After their preparation, the catalysts were characterized using the X-ray diffraction (XRD) method, later they were used in the catalysis of the transesterification reaction of Jatropha oil curcas L. The reaction was monitored using the layer chromatography method (CCF) and, based on this method, it was found that the calcium oxide derived from the residues promoted the conversion of 99.0 and 99.1% of the oil into biodiesel; and the mixed oxide promoted the conversion of 100% of the oil into biodiesel. (TRADUÇÃO NOSSA)