Received 19.03.2020, Revised 01.07.2020, Accepted 28.08.2020
Goal. Assessment of the effect of bioadditives on improving the performance of diesel fuels. Results. When diesel fuel is combusted, the exhaust gases of diesel vehicles contain carbon monoxide, sulfur, nitrogen, soot, hydrocarbons and carcinogenic polycyclic hydrocarbons. The combustion of fuel containing sulfur impurities mainly produces sulfur dioxide. While holding the ash elements (for example, metal-containing additives), part of the sulfur goes into sulfates and is released as solid particles. Sulfur dioxide irritates the respiratory system, participates in the formation of acid rain, in the process of corrosion, destroys catalytic converters. Consequently, increasing emissions of internal combustion engine exhaust emissions, limiting carbon dioxide emissions, and saving energy from petroleum products, make most countries look for ways to reduce the risk of heat engines from affecting the environment. These problems have led to increased demands on the environmental properties of refined products. According to the results of research, the complex of indicators of quality of diesel oil of petroleum origin and samples of rapeseed oil esters differs slightly from the indices of petroleum diesel fuel, and a number of indicators of ecological properties are better than indices of petroleum origin fuel. As a result, it is found that when bio components are added to petroleum diesel oil in the amount of 7%, the indicators of environmental properties are improved first of all: sulfur content, mass fraction of aromatic hydrocarbons, ash content. It also increases the cetane number and greatly improves the lubricating power, which increases the car's engine life. In addition, biodiesel saves fuel costs because it is less expensive than petroleum diesel. Scientific novelty. The influence of bioadditives: methyl ester of rapeseed oil (MERO) and isopropyl ester of rapeseed oil (IPERO) on the operational properties of diesel fuel has been established. Practical importance. Adding biocomponents to petroleum fuels has improved performance, such as cetane number, density and viscosity, sulfur content, ash content, and mass fraction of polycyclic aromatic hydrocarbons
oil refining industry; diesel fuel; bioadditives; operational properties