Advertisement

Concerning adsorptional properties of carbon adsorbents 3. A study of adsorption isotherms of gases and vapors on active carbons over a wide interval of temperatures, including the critical region

  • K. M. Nikolaev
  • M. M. Dubinin
Physical Chemistry

Summary

  1. 1.

    The adsorption isotherms of nitrogen, krypton, xenon, tetrafluoroethylene and hexafluoropropylene were studied over a wide temperature interval, including the critical region, with two specimens of active carbon which belonged to the extreme members of the series of active carbons of the first structrual type.

     
  2. 2.

    As a result of the analysis of experimental data and of the examination of the peculiarities of the state of adsorbed substances in the region of the critical temperature, rational methods of calculation were proposed for the characteristic curve from adsorption isotherms of the substances in gaseous and vapor states.

     
  3. 3.

    In accord with the potential theory of adsorption, the affinity coefficients of the characteristic curves do not depend on the structure of the carbon, while the limiting volumes of the adsorptional space are constant magnitudes for each active carbon, provided that the effect of ultraporosity is not manifested.

     
  4. 4.

    Equations of the adsorption isotherms for active carbons of the first structural type were proposed for gaseous and vapor states of the substances being adsorbed in the equilibrium space phase, these equations corresponding to the same equation of the characteristic curve. These equations of adsorption isotherms were supported experimentally.

     

Keywords

Active Carbon Adsorption Isotherm Critical Temperature Xenon Critical Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. [1]
    A. Titoff, Z. phys. Chem. 74, 641 (1910).Google Scholar
  2. [2]
    J. F. Homfray, Z. phys. Chem. 74, 129 (1910).Google Scholar
  3. [3]
    L. B. Richardson, J. Amer. Chem. Soc. 39, 1828 (1917).Google Scholar
  4. [4]
    K. Peters and K. Wail, Z. phys. Chem. A 148, l (1930).Google Scholar
  5. [5]
    W. K. Lewis, E. R. Gilliland, B. Chertow and W. P. Cadogan, Industr. and Engng. Chem. 42, 1326 (1950).Google Scholar
  6. [6]
    V. G. Fastovskii and A. E. Rovinskii, Oxygen (USSR) 5, 14 (1952). [In Russian].Google Scholar
  7. [7]
    A. Antropoff, Kolloid.-Z. 129, 1 (1952).Google Scholar
  8. [8]
    B. N. Vasil'ev, B. P. Bering, M. M. Dubinin and V. V. Serpinskii, Doklady Akad. Nauk SSSR, 114, 131 (1957).Google Scholar
  9. [9]
    L. Berenyi, Z. phys. Chem. 94, 628 (1920).Google Scholar
  10. [10]
    H. H. Lowry and P. S. Olmstead, J. phys. Chem. 31, 1601 (1927).Google Scholar
  11. [11]
    M. M. Dubinin and E. D. Zaverina, Zh.Fiz.Khim. 23, 1129 (1949).Google Scholar
  12. [12]
    M. M. Dubinin and E. G. Zhukovskaia, Bull. Acad. Sci. USSR Div.Chem.1958, 535.Google Scholar
  13. [13]
    H. P. Meissner and E. M. Redding, Ind. Eng. Chem. 36, 997 (1944).Google Scholar
  14. [14]
    V. P. Peshkov, J. Exptl. and Theor. Physics, 14, 514 (1944).Google Scholar
  15. [15]
    S. Brunauer, P. H. Emmett and E. Teller, J. Amer. Chem. Soc. 60, 309 (1939).Google Scholar
  16. [16]
    M. M. Dubinin, Studies in the Area of Adsorption of Gases and Vapors by Carbon Adsorbents; publ. Acad. Sci. USSR, Moscow, 1956.Google Scholar
  17. [17]
    M. Polanyi, Trans. Faraday Soc. 28, 316 (1932).Google Scholar
  18. [18]
    M. M. Dubinin and E. D. Zaverina, Zh.Fiz. Khim. 24, 1262 (1950).Google Scholar
  19. [19]
    F. Goldmann and M. Polanyi, Z. phys. Chem. A 132, 313 (1928).Google Scholar
  20. [20]
    D. T. Ewing and C. H. Spurway, J. Amer. Chem. Soc. 52, 4635 (1930).Google Scholar
  21. [21]
    T. De Vries, J. Amer. Chem. Soc. 57, 1771 (1935).Google Scholar
  22. [22]
    J. D. Danforth and T. DeVries, J. Amer. Chem. Soc. 61, 873 (1939).Google Scholar
  23. [23]
    M. M. Dubinin, E. D. Zaverina and D. P. Timofeev, Bull. Acad. Sci. USSR, Div. Chem. 1957, 670.Google Scholar

Copyright information

© Consultants Bureau Inc. 1959

Authors and Affiliations

  • K. M. Nikolaev
    • 1
  • M. M. Dubinin
    • 1
  1. 1.Institute of Physical Chemistry of the Academy of Sciences USSRUSSR

Personalised recommendations