chemicallytechFine Chemical TechnologiesТонкие химические технологии2410-65932686-7575MIREA – Russian Technological University (RTU MIREA).chemicallytech-512Research ArticleTHEORETICAL BASIS OF CHEMICAL TECHNOLOGYТЕОРЕТИЧЕСКИЕ ОСНОВЫ ХИМИЧЕСКОЙ ТЕХНОЛОГИИMethod for calculating the surface tension of hydrocarbonsМЕТОД РАСЧЕТА ПОВЕРХНОСТНОГО НАТЯЖЕНИЯ УГЛЕВОДОРОДОВРытоваЕ. В.RytovaE. V.eleven-thirteen@mail.ruАрутюновБ. А.ArutyunovB. A.noemail@neicon.ruМосковский государственный университет тонких химических технологий им. М.В. ЛомоносоваРоссияM.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571Russian Federation201328122013865962Copyright © Rytova E.V., Arutyunov B.A., 20132013Рытова Е.В., Арутюнов Б.А.Rytova E.V., Arutyunov B.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.finechem-mirea.ru/jour/article/view/512

A method of surface tension calculation used by Sugden is based on the difference in the densities of a liquid and its vapor. A similar result was obtained by Bachynskyi. To expand the field of application of the formula for polar liquids Steele polarity factor was introduced. The experimental data have an error of up to 3%. The generalized processing of the experimental data by the surface tension of hydrocarbons enables to obtain a calculation formula for determining the temperature dependence of the modified surface tension of hydrocarbons. Parameters (temperature and surface tension) corresponding to minimum of free energy for the liquid – vapor phase transition were used as modification scales when constructing the generalized dependencies. The developed method was used to summarize the experimental data by the surface tension of gas condensates of different areas.

П олучены обобщенные зависимости поверхностного натяжения углеводородов, построенные на базе принципа минимума свободной энергии фазового перехода жидкость–пар.

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