OBTAINING BIODIESEL FROM A WASTE THE SUGAR INDUSTRY

Abstract

The work is directed to the production of a renewable biocombustible: Biodiesel, starting off of the oil in a residue of the sugar industry; using for the extraction of the oil commercial naphtha, and superfine ethanol like transesterificant agent. A bibliographical research was realized to select the variant of more feasible production, as well as the raw materials to carry out the process, where the oil, the ethanol and the sodium etoxide catalyst, were the most attractive variants. The possibility was valued of realizing the extraction with in two stages with cross current, being from this an increase of the oil production and the yields by liter of solvent. The methodology was determined to carry out the reaction of transesterification using ethanol with a purity of 96ºGL and
relations of feeding to the Discontinue Reactor with Agitation, of 3,5 and 15 mol of ethanol/mol of oil, being from this last soap formation during the reaction. Besides the obtaining of Biodiesel, as coproduct were obtained the Fatty Acid Alcohol (AAPM). The conversion of the oil was acceptable (73%), and the difference with the reported values, must to the water presence in the ethanol. In order to evaluate the possibility of the design of Demonstrative Plant for the production of Biodiesel, the simulation of the complete process was carried out using Professional Simulator HYSYS 3,2, using for it the results obtained in the laboratory. Several technological alternatives were analyzed, with the purpose of to obtain certain material integration energetic of the process.