Caracterización de mezclas de gasolina extra comercial con bioil obtenido a partir de pirólisis de mezclas de polipropileno y poliestireno

Abstract

The objective dealt with making mixtures of bioil obtained from pyrolysis of 25% polypropylene and 75% polystyrene mixtures, in which the percentages of the mixture of bioil and extra gasoline were varied, whose percentages were 2, 5 and 10% in order to improve its characteristics, for which several properties such as octane, density, calorific value, flash point, API degrees, specific gravity and distillation were characterized. It began with the process of drying and elimination of gums of the pyrolytic oil, using dehydrated calcium sulfate; in addition, a centrifuge was used for the separation of bioil and desiccant, obtaining bioil without water, then the mixtures of bioil and extra gasoline at different percentages was carried out; a base volume of preparation of 3 liters was taken; during this process there was the formation of kerosene gums existing in the bioil, which was extracted from the liquid mixture without any alteration. The standard sample and the mixtures obtained were characterized using the laboratory technical guides, and the three mixtures and the standard sample were tested in a gasoline engine with a volume of 3 liters each. With the help of the dynamometer, gas analyzer and scanner it was possible to obtain results such as power, torque, gas emissions, air, environment, and engine temperatures. The results of all the analyses determined that the most suitable mixture is 5%, with an octane number of 95.25 RON, calorific value of 49.8661 KJ/Kg and power of 58.1 Hp, this mixture determined a good performance in the Chevrolet Spark 1.0 and a prolonged stability of the power at more than 5800 RPM. It is recommended to carry out investigations with concentrations higher than 10%.