The study of the purification process for operational oils by using complex demulsifiers

The results of a comprehensive study of the physicochemical properties of operational oils after treatment with composite demulsifiers are presented.The obtained results are intended for the application of technology for cleaning and preparing operational oils for subsequent regeneration and reuse at oil refining facilities.In the operation process of technological equipment, oils are subject to intense thermal, mechanical and chemical influences, resulting in the accumulation of water, mechanical impurities, and oxidation products, as well as the formation of stable water-in-oil emulsions.During the studies, the main physical and chemical parameters of oils were determined before and after treatment with demulsifiers: kinematic viscosity, flash point, water content, amount of mechanical impurities and degree of phase separation.Experimental studies were conducted at various temperatures and concentrations of demulsifying reagents in order to establish the most effective processing modes.The results of the studies showed that the use of composite demulsifiers ensures the effective destruction of stable water-oil emulsions and contributes to a significant improvement in the performance characteristics of oils.After processing, a decrease in the content of water and mechanical impurities, as well as stabilization of the viscosity characteristics of the oils, was observed.The highest degree of dehydration is achieved with an optimal concentration of demulsifier and an elevated processing temperature, which ensures accelerated separation of the aqueous and oil phases.The obtained results confirm the high efficiency of using composite demulsifiers in the processes of cleaning and regeneration of operational oils

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