Purificação e performance da reutilização do Magnesol usado na purificação de biodiesel como proposta de diminuição dos custos do processo

Abstract

New searches for technologies that allow to obtain fuels with the same efficiency of fossil fuels, however, with renewable raw material are increasingly on the agenda in the current world scenario. Biodiesel, derived from vegetable or animal oils, fits perfectly in this context, above all, biodiesel from frying oil that still brings to the surface the resolution of a major environmental problem: the incorrect disposal of oils that are harmful to the environment. However, in its transesterification, some undesirable by-products are found that can to cause problems in the automobile engine. For resolt this problem requires the purification of this biofuel. Purification can be obtented by two routes: wet and dry, the wet being most commonly used in industry. In this type of purification where the water is used for the washing of biodiesel, after purification, this contaminated water also entails another environmental problem: a highly polluted effluent. On the other hand, the dry purification makes use of an adsorbent that generates less effluent and, after use, is usually grounded by its users. In this work studed the recovery of an adsorbent that has been widely used, the Magnesol, and him reuse has been studied for cost reduction purposes in the biodiesel purification process. After the creation of the methodology of recuperation of Magnesol, some solvents were tested and, with the elemental analysis of Carbon, it was verified which solvent presented better performance in the adsorbent recovery, being THF the highlight of this work. The analysis of FTIR, TGA and MEV showed that the adsorbent recovery was efficient, and the chromatography analysis showed that the performance of biodiesel purification with recovered Magnesol should be more worked so that it can be more efficient as it is when used virgin.