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Interpretation of the difference between the work of separation determined by the separation potential and the thermodynamically estimated work of isobaric-isothermal mixing

  • Physical Chemistry of Separation Processes. Chromatography
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Abstract

The previously described scheme of a symmetrical cascade consisting of two equivalent sections and several steps of equilibrium (quasi-static) separation of components of an ideal gas solution was used to calculate gas mixture pressures at cascade stages. It was shown that, at equal concentrations of fractions feeding steps, pressures of mixing fractions were different. The difference between the work of separation determined using the separation potential and the thermodynamically estimated work of mixing is interpreted as a consequence of an increase in entropy during fraction mixing in the corresponding units of a symmetrical cascade.

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References

  1. P. G. Kuznetsov, V. A. Sokolov, and I. P. Sedin, in Separation and Analysis of Hydrocarbon Gases (Akad. Nauk SSSR, Moscow, 1963), p. 114 [in Russian].

    Google Scholar 

  2. L. A. Nisel’son and V. N. Vigdorovich, in Proceedings of All-Union Meeting on Methods for the Preparation of High-Purity Substances (NIITEKhIM, Moscow, 1967), p. 48 [in Russian].

    Google Scholar 

  3. V. P. Chizhkov and V. N. Boitsov, Zh. Fiz. Khim. 80(5), 891 (2006) [Russ. J. Phys. Chem. 80 (5), 776 (2006)].

    Google Scholar 

  4. V. P. Chizhkov and N. V. Sterkhov, Zh. Fiz. Khim. 78 (10), 1874 (2004) [Russ. J. Phys. Chem. 78 (10), 1651 (2004)].

    CAS  Google Scholar 

  5. A. M. Rozen, Theory of Isotope Separation in Columns (Atomizdat, Moscow, 1960) [in Russian].

    Google Scholar 

  6. V. P. Chizhkov, N. V. Sterkhov, and M. P. Zabokritskii, Zh. Fiz. Khim. 65(7), 1729 (1991).

    Google Scholar 

  7. V. P. Chizhkov and V. N. Boitsov, Zh. Fiz. Khim. 78(7), 1301 (2004) [Russ. J. Phys. Chem. 78 (7), 1136 (2004)].

    CAS  Google Scholar 

  8. P. Chambadal, Evolution et applications du concept d’entropie (Dunod, Paris, 1963; Nauka, Moscow, 1967).

    Google Scholar 

  9. E. I. Eremin, Fundamentals of Chemical Thermodynamics (Vysshaya Shkola, Moscow, 1974) [in Russian].

    Google Scholar 

  10. V. A. Kirillin, A. E. Sheindlin, and E. E. Shpil’rain, Thermodynamics of Solutions (Energiya, Moscow, 1980) [in Russian].

    Google Scholar 

  11. I. P. Bazarov, Thermodynamics (Vysshaya Shkola, Moscow, 1974) [in Russian].

    Google Scholar 

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Correspondence to V. P. Chizhkov.

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Original Russian Text © V.P. Chizhkov, V.N. Boitsov, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 2, pp. 370–374.

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Chizhkov, V.P., Boitsov, V.N. Interpretation of the difference between the work of separation determined by the separation potential and the thermodynamically estimated work of isobaric-isothermal mixing. Russ. J. Phys. Chem. 83, 298–302 (2009). https://doi.org/10.1134/S0036024409020265

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  • DOI: https://doi.org/10.1134/S0036024409020265

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