Adsorption of methane on AU-5 microporous carbon adsorbent

Absolute methane adsorption is measured on the AU-5 microporous carbon adsorbent in the pressure range of 20 Pa to 25 MPa and temperature range of 178 to 360 K. Adsorption isosteres in the whole range of pressures and temperatures are well approximated by straight lines that retain a constant slope...

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Veröffentlicht in:	Protection of metals and physical chemistry of surfaces 2013-09, Vol.49 (5), p.521-527
Hauptverfasser:	Strizhenov, E. M., Shkolin, A. V., Fomkin, A. A., Pribylov, A. A., Zherdev, A. A., Smirnov, I. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorbents Adsorption Approximation Carbon Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion and Coatings Industrial Chemistry/Chemical Engineering Inorganic Chemistry Materials Science Mathematical analysis Metallic Materials Methane Optimization Physicochemical Processes at the Interfaces Surface chemistry Tribology
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Beschreibung
Zusammenfassung:	Absolute methane adsorption is measured on the AU-5 microporous carbon adsorbent in the pressure range of 20 Pa to 25 MPa and temperature range of 178 to 360 K. Adsorption isosteres in the whole range of pressures and temperatures are well approximated by straight lines that retain a constant slope at a transition to the range of supercritical temperatures under conditions of pronounced gas-phase nonideality. Dependences of differential molar isosteric adsorption heat on the value of methane adsorption on the given adsorbent are calculated. The effectiveness of adsorption storage systems is analyzed, and the optimum a-p-T parameters of methane accumulation are selected.
ISSN:	2070-2051 2070-206X
DOI:	10.1134/S2070205113050092