Reversible adsorption deformation of layered adsorbents at high pressures and temperatures

Autor: A. A. Pribylov, N. S. Kazbanov, D. B. Guljamova, I. A. Kalinnikova, S. Z. Muminov, L. G. Shekhovtsova
Rok vydání: 2008
Předmět:
Zdroj: Russian Chemical Bulletin. 57:2460-2466
ISSN: 1573-9171
1066-5285
Popis: Isotherms of excessive adsorption of N2 and Ar on three montmorillonite samples (natural sodium (NaMt) and ion-exchange pyridinium (PyMt) and polyhydroxyaluminum (PGAMt)) were measured in the pressure interval from 0.1 to 60 MPa and at temperatures 303, 343, 373, and 400 K. The results of measurements showed the inverse temperature dependence of the measured isotherms of excessive adsorption at elevated pressures and temperatures: for the isotherms at higher temperatures the amounts adsorbed exceed the values measured at lower temperatures. The deformation of montmorillonites with the temperature increase results in an increase in the adsorption volume of the adsorbent.
Databáze: OpenAIRE