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Journal of thermal analysis

, Volume 32, Issue 5, pp 1361–1367 | Cite as

Solution thermodynamics of adsorption in microporous adsorbents

  • R. Roque-Malherbe
Article

Abstract

From the conception that the adsorption process in microporous solids consists in a volumetric filling of an adsorption space and the formation of a monophasic system (adsorbateadsorbent) as is the case in solutions, and with the use of solution thermodynamics, expressions were obtained for the well-known isosteric heat of adsorption, the enthalpy of adsorption and the differential heat of adsorption, and non-trivial relations were then established between these thermodynamic magnitudes.

Keywords

Polymer Physical Chemistry Enthalpy Inorganic Chemistry Adsorption Process 
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.

Zusammenfassung

Ausgehend von der Konzeption, daß der Adsorptionsprozeß in mikroporösen Festkörpern eine Auffüllung des Adsorptionsraumes und die Bildung eines monophasischen Systems (Adsorbat-Adsorbent) wie im Falle von Lösungen ist, und unter Anwendung der Thermodynamik von Lösungen wurden Ausdrücke für die isosterische Adsorptionswärme, die Adsorptionsenthalpie und die differentielle Adsorptionswärme erhalten. Nicht-triviale Beziehungen zwischen diesen thermodynamischen Größen wurden abgeleitet.

Резюме

Исходя из концепции, ч то адсорбционный процесс в микропорис тых твердых телах состоит из объемного заполнения адсорбци онного пространства и образ ования монофазной системы (адсорбат-адс орбент), как и в случае растворов, а также используя тер модинамику раствора, были получе ны выражения для хоро шо известной изостерич еской теплоты адсорб ции, дифференциальной те плоты адсорбции и энт альпии адсорбции. Установле ны также необычные соотношения между эт ими термодинамическ ими величинами.

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References

  1. 1.
    J. W. Gibbs, Thermodynamical studies, Gostekhizdat, Moscow, 1950 (in Russian).Google Scholar
  2. 2.
    T. L. Hill, Advances in Catalysis, 4 (1952) 211, and J. Chem. Phys., 18 (1950) 246.Google Scholar
  3. 3.
    D. H. Everett, Thermochimie, Colloques Internationaux du CNRS No. 201, p. 45 (1972).Google Scholar
  4. 4.
    R. A. Pierotti and H. E. Thomas, Surface and Colloid Sciences Vol. 4, Editor E. Matijevic. John Wiley-Interscience, New York 1971, p. 93.Google Scholar
  5. 5.
    S. Ross and J. P. Olivier, On Physical Adsorption. Interscience, New York, 1964, p. 103.Google Scholar
  6. 6.
    M. M. Dubinin, Progress in Surface and Membrane Science, 9 (1975) 1.Google Scholar
  7. 7.
    B. P. Bering, M. M. Dubinin and V. V. Serpinskii, J. Coll. Int. Science, 21 (1966) 378.CrossRefGoogle Scholar
  8. 8.
    B. P. Bering and V. V. Serpinskii, Izv. Akad. Nauk SSSR, 1222 (1969); 847 (1971).Google Scholar
  9. 9.
    B. P. Bering, Dokl. Akad. Nauk SSSR, 114 (1957) 1254; 148 (1963) 1331.Google Scholar
  10. 10.
    B. P. Bering, A. L. Myers and V. V. Serpinskii, Dokl. Akad. Nauk SSSR, 193 (1970) 119.Google Scholar
  11. 11.
    B. P. Bering, M. M. Dubinin and V. V. Serpinskii, J. Coll. Int. Sci., 38 (1972) 185.CrossRefGoogle Scholar
  12. 12.
    B. P. Bering and V. V. Serpinskii, Adsorption and Porosity, Nauka Moscow, 1975, p. 231 (in Russian).Google Scholar
  13. 13.
    R. Malherbe-Roque, KINAM 6 (1984) 23.Google Scholar
  14. 14.
    B. P. Bering and V. V. Serpinskii, Izv. Akad. Nauk SSSR, Ser. Khim., 2427 (1974).Google Scholar
  15. 15.
    M. M. Dubinin, Molecular Sieve II A.C.S. Symposium Series 40 Washington D.C., 1977, p. 1.Google Scholar

Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1987

Authors and Affiliations

  • R. Roque-Malherbe
    • 1
  1. 1.National Center for Scientific ResearchHavanaCuba

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