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Modification of the isopycn method for calculating heats of adsorption

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    A modification of the so-called “isopycn method,” used to determine the differential heats of adsorption of gases and vapors of microporous adsorbents according to one adsorption isotherm, was proposed. The proposed variation of the method does not require the use of the equation of state of a real gas.

  2. 2.

    The results of calculations of the heats are in satisfactory agreement with the experimental data for the adsorption of n-alkanes (from ethane up to octadecane) on zeolite CaA. In calculations according to this method for hydrocarbons with a large number of carbon atoms, better results are obtained than according to the original isopycn method.

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Literature cited

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Author information

Authors and Affiliations

  1. Central Institute of Physical Chemistry, German Academy of Sciences, Berlin

    A. Grossmann, M. Byulov & V. Shirmer

Authors
  1. A. Grossmann
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  2. M. Byulov
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  3. V. Shirmer
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.3, pp. 520–523, March, 1969.

In conclusion, we should like to express our gratitude to B. P. Bering and V. V. Serpinskii for their discussion and valuable advice.

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Grossmann, A., Byulov, M. & Shirmer, V. Modification of the isopycn method for calculating heats of adsorption. Russ Chem Bull 18, 462–464 (1969). https://doi.org/10.1007/BF00906958

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  • DOI: https://doi.org/10.1007/BF00906958

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