Comparative analysis of the physicochemical and operational properties of biogasoline and petroleum diesel fuel

The aim of the research is to substantiate the component and proportional composition of biogasoline for the diesel engines based on its physicochemical and operational properties. A promising motor fuel for the diesel engines of an automotive and a tractor equipment is biogasoline, which is a biofuel composition based on aviation gasoline with the addition of vegetable oil. It is recommended to use camelina oil (RyzhM) as a bioadditive to an aviation gasoline, as it surpasses other vegetable oils in the main indicators of technological and physicochemical properties (oil content, kinematic viscosity, pour point, refractive index, iodine number, the presence of higher fatty acids with antifriction and antiwear properties). To confirm the component and proportional composition of the proposed biogasoline, which meets the requirements of GOST 32511-2013 for petroleum diesel fuel (BAT), laboratory studies were conducted to determine six indicators of physical and chemical properties (density, kinematic viscosity, polycyclic aromatic hydrocarbon content, sulfur content, cold filter plugging point and pour point) and four indicators of the operational properties (mass fraction of water, corrected wear scar diameter, total contamination and net calorific value) in comparison with similar indicators of summer and winter grades of petroleum diesel fuel. The results of the studies show that biogasoline of the composition Avgas 100LL+RyzhM based on aviation gasoline Avgas 100LL with the addition of camelina oil in a volume of 40% to 60% meets the standard indicators of physicochemical and operational properties, and in terms of lubricating ability and content of polycyclic aromatic hydrocarbons it exceeds the BAT.