Phase Equilibrium of Petroleum Dispersion Systems in Terms of Thermodynamics and Kinetics

Olena Tertyshna1, Konstantin Zamikula1, Oleg Tertyshny1, Olena Zinchenko2, Petro Topilnytskyi3
Affiliation: 
1 State Higher Educational Institution "Ukrainian State University of Chemical Technology" 8, Gagarina Ave., 8, 49005, Dnipro, Ukraine 2 PJSC "Ukrtatnafta", 3, Svishtovska St., 39610 Kremenchuk, Ukraine 3 Lviv Polytechnic National University, 12, Bandery St., 79013, Lviv, Ukraine t_elena2000@bigmir.net
DOI: 
https://doi.org/10.23939/chcht15.01.132
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Abstract: 
The process of paraffin formation has been considered, including the peculiarities of the paraffin structure as a result of phase transitions with a decreasing temperature. Mathematical models for thermodynamic and kinetic calculations of the "solid-liquid" system phase equilibrium have been developed. To shift the "fuel oil-paraffin" balance towards the liquid, it is necessary to reduce the activity ratio of solid and liquid phases by introducing into the system a substance with a lower solubility parameter. To increase the stability, as well as structural and mechanical characteristics of fuel oil, the additive of plant origin was synthesized. The phase transitions in fuel oil depending on the temperature when adding different amounts of additives have been studied.
References: 

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