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Liquid–Gas Phase Equilibria of Hydrocarbons in Water + n-Pentane and Water + n-Hexane Mixtures

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Abstract

The pVT-properties of water + n-pentane and water + n-hexane mixtures in temperature intervals from 305  to 542 K and pressures up to 15 MPa were measured in a constant-volume piezometer. The line of phase equilibrium hydrocarbon–vapor with water and their critical parameters were determined. Critical temperatures and pressures are constant and close to 0.9 mol fraction of water, remaining the same as for the upper critical end-point, while the densities increase. All critical parameters decrease above 0.93 mol fraction of water. The common three-phase lines for measured systems are presented.

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References

  1. De Loos, Th.W, Penders, W.G., Lichtenthaler, R.N.: Phase equilibria and critical phenomena in fluid (n-hexane + water) at high pressures and temperatures. J. Chem. Thermodyn. 14, 83–91 (1982)

  2. De Loos, ThW, van Dorp, J.H., Lichtenthaler, R.N.: Phase equilibria and critical phenomena in fluid (n-alkane + water) systems at high pressures and temperatures. Fluid Phase Equil. 10, 279–287 (1983)

    Article  Google Scholar 

  3. Brunner, E.: Fluid mixtures at high pressures IX. Phase separation and critical phenomena in 23 (n-alcane + water) mixtures. J. Chem. Thermodyn. 22, 335–353 (1990)

    Article  CAS  Google Scholar 

  4. Bazaev, A.R., Skripka, V.G., Namiot, A.Yu.: The volumetric properties of gas solutions of the aqueous vapor with n-hexane and n-octane. Russ. J. Phys. Chem. 49, 1339 (1975)

    CAS  Google Scholar 

  5. Kamilov, I.K., Malysheva, L.V., Rasulov, A.R., Shakbanov, K.A., Stepanov, G.V.: The experimental investigation of Cv, x, P, V, T properties and the equation of state of the n-hexane–water system. Fluid Phase Equil. 125, 177–184 (1996)

    Article  CAS  Google Scholar 

  6. Yiling, T., Michelberger, Th, Franck, E.U.: High pressure phase equilibria and critical curves of (water + n-pentane) and (water + n-hexane) at temperatures to 700 K and pressures to 300 MPa. J. Chem. Thermodyn. 23, 105–112 (1991)

    Article  Google Scholar 

  7. Kamilov I.K., Stepanov G.V., Malysheva L.V., Rasulov A.R., Rasulov S.M., Shakhbanov K.A.: Phase equilibrium curves and critical lines of n-hexane–water: liquid–liquid and liquid–gas. High Temp.-High Press. 29, 491–495, (1997)

  8. Krichevskii, I.R.: The Phase Equilibrium in Solutions at High Pressure. Goskhimizdat, Moskow–Leningrad (1952) (in Russian)

  9. Krichevskii, I.R.: Thermodynamics of Critical Infinitely Dilute Solutions. Khimia, Moscow (1975) (in Russian)

  10. Ciklis, D.S.: The Stratification Gas Mixtures. Khimia, Moscow (1969) (in Russian)

  11. Khazanova, N.E.: The Systems with Azeotropism at High Pressure. Khimia, Moscow (1978) (in Russian)

    Google Scholar 

  12. Victorov, A.I., Frederslund, A.A., Smirnova, N.A.: Fluid phase equilibria in water: natural gas component mixtures and their description by the note group-contribution equation of state. Fluid Phase Equil. 66, 187–210 (1991)

    Article  Google Scholar 

  13. Anisimov, M.A., Gorodetskii, E.E., Kulikov, V.D., Sengers, J.V.: Crossover between vapor–liquid and consolute critical phenomena. Phys. Rev. E 51, 1199–1215 (1995)

    Article  CAS  Google Scholar 

  14. Christoforakos, M., Franck, E.U.: An equation of state for binary fluid mixtures at high temperatures and high pressures. Ber. Bunsenges. Phys. Chem. 90, 780–789 (1986)

    Article  CAS  Google Scholar 

  15. Abdulkadirova, KhS, Khokhlachov, S.P.: Prediction of phase equilibria in hydrocarbon + near-critical solvent systems. Fluid Phase Equil. 140, 73–85 (1997)

    Article  CAS  Google Scholar 

  16. van Konynenburg, P.H., Scott, R.L.: Critical lines and phase equilibria in binary van der Waals mixtures. Phil. Trans. R. Soc. London 298, 495–540 (1980)

  17. Rasulov, S.M., Khamidov, M.M.: A setup for simultaneous measurements of pressure, temperature, volume, and viscosity of liquids and gases. Russ. Tech. Exp. Instr. 1, 148–150 (1999)

    Google Scholar 

  18. Wagner, W., Pruss, A.: The IAPWS formulation 1995 for the thermodynamic properties of properties of ordinary water substance for general and scientific use. J. Phys. Chem. Ref. Data 31, 387–535 (2002)

    Article  CAS  Google Scholar 

  19. Rasulov, S.M., Isaev, I.A.: The azeotrope line n-pentane–water system. High Temp.–High Press 41, 395–406 (2012)

  20. Rasulov, S.M., Orakova, S.M.: p, ρ, T-properties and phase equilibria of the water–n-hexane system for small water content. Russ. High Temp. 51, 67–73 (2013)

  21. Tsonopoulos, C., Wilson, G.M.: High temperature mutual solubilities of hydrocarbons and water. AIChE J. 29, 990–999 (1983)

  22. Roof, J.G.: Three-phase critical point in hydrocarbon–water systems. J. Chem. Eng. Data 15, 301–303 (1970)

    Article  CAS  Google Scholar 

  23. Connoly, J.F.: Solubility of hydrocarbons in water near the critical solution temperatures. J. Chem. Eng. Data 11, 13–16 (1966)

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Acknowledgments

The work is supported by Russian Fund of Basic Research Grant 14-08-00230.

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Authors and Affiliations

  1. Institute of Physics of Daghestan Scientific Center of Russian Academy of Sciences, 26 Bakinskikh Komissarov, 94, 367003, Makhachkala, Russia

    S. M. Rasulov, I. A. Isaev & S. M. Orakova

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  1. S. M. Rasulov
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  2. I. A. Isaev
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  3. S. M. Orakova
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Correspondence to I. A. Isaev.

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Rasulov, S.M., Isaev, I.A. & Orakova, S.M. Liquid–Gas Phase Equilibria of Hydrocarbons in Water + n-Pentane and Water + n-Hexane Mixtures. J Solution Chem 43, 1844–1872 (2014). https://doi.org/10.1007/s10953-014-0261-5

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