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Abstract <p>The paper demonstrates the feasibility of applying the direct energy minimisation method in conjunction with the Peng–Robinson equation of state and the Lohrenz–Bray–Clark model for calculating the density and viscosity of binary hydrocarbon mixtures, as well as mixtures of hydrocarbons with carbon dioxide. The accuracy of the obtained numerical simulation results was assessed by comparing the calculated values of the density and dynamic viscosity of the phases (liquid and gas) with experimental data published in the literature. It is shown that the approach considered in the paper allows, with good accuracy (up to 10<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11972_2025_8843_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="15" /> </InlineMediaObject> <EquationSource Format="TEX">\(\%\)</EquationSource> <!--BPhysMGU2570078Volodina-m1--> </InlineEquation>), prediction of the densities and viscosities of the phases for binary hydrocarbon mixtures containing components with up to eight carbon atoms.</p>

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Prediction of the Viscosity of Binary Mixtures of Hydrocarbons and Carbon Dioxide Using the Lohrenz–Bray–Clark Model

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • E. E. Volodina,
  • A. V. Isaeva

摘要

Abstract

The paper demonstrates the feasibility of applying the direct energy minimisation method in conjunction with the Peng–Robinson equation of state and the Lohrenz–Bray–Clark model for calculating the density and viscosity of binary hydrocarbon mixtures, as well as mixtures of hydrocarbons with carbon dioxide. The accuracy of the obtained numerical simulation results was assessed by comparing the calculated values of the density and dynamic viscosity of the phases (liquid and gas) with experimental data published in the literature. It is shown that the approach considered in the paper allows, with good accuracy (up to 10 \(\%\) ), prediction of the densities and viscosities of the phases for binary hydrocarbon mixtures containing components with up to eight carbon atoms.