STUDYING THE EFFECTIVENESS OF NITROGEN AND SULFUR CONTAINING ORGANIC OLIGOMERIC ADDITIVES SOLUBLE IN PETROLEUM OILS.

Background. Additives based on nitrogen, oxygen and sulfur organic compounds and their composite mixtures are used worldwide to improve fuel quality. Therefore, great attention is being paid to research and development aimed at the development of effective methods of obtaining composites that affect the operational properties of petroleum products. Purpose. Development of technology for obtaining additives containing nitrogen, oxygen and sulfur in the composition of petroleum products, improving their operational properties. Methodology. Modern cryoscopic analysis, IR-spectroscopy, elemental analysis, ultraviolet spectroscopy, thermal analysis (DTA, TGA - derivatogram) methods, motor (OSM) and research (OST) methods of determining the octane number were used as research methods. Originality. NS-1 and NS-2 brands of diesel fuel added with oligomer additives have been found to reduce the diameter of pits formed on the metal surface from 460 μm, and the samples added in the amount of 0,3% have increased the efficiency of NS-1 brand to 305 μm in diameter and NS-2 brand to 280 μm in diameter. Findings. Oligomer additives NS-1 and NS-2, which contain nitrogen and sulfur, meet modern requirements, and when a combined corrosion inhibitor is used as a component, the level of corrosion protection in industrial И-20A oils has improved to 93,2 %. [ABSTRACT FROM AUTHOR]