Estudo de blendas de biodiesel e sua efetividade

Abstract

The biodiesel market has shown itself to be promising in Brazil, since the federal government has established several policies that encourage the growth of such market. So, to accompany this growth, efforts have been made to improve both the biodiesel production techniques and the raw materials to be used. The most used raw materials are soybean oil and beef tallow, however these two have some characteristics that are not beneficial to biodiesel, for soybean oil it is his high number of unsaturation, indicated by its iodine value, which affects the stability of the fuel, and for beef tallow it is mainly its high PEFF, which affects its ability to be used in regions of reduced climates, because in these climates it is a fuel that tends to solidify. In this sense, a comparative analysis was carried out between the results of the tests of iodine value, kinematic viscosity at 40 ° C, specific mass and cold filter clogging point (PEFF) made in biodiesel blends with the results of these same tests done in biodiesel from soybean oil and beef tallow from the literature. From this analysis, it can be seen that the addition of fats to soybean oil in the blends leads to a reduction of the iodine value, and consequently an improvement in the stability of the biodiesel produced, and that the addition of vegetable oils to bovine tallow leads to reduction of PEFF, allowing this biodiesel to be marketed in regions with reduced climates. In view of this, it is observed that the possibility of optimizing biodiesel with blends is beneficial for both the biodiesel producer, who has the possibility of cheapening his process without losing the quality of his product, as for producers of raw materials, that with greater demand for its products it manages to generate greater profits and generate greater incentives for the participation of these producers in the biodiesel market.