Fundamentals of methane adsorption in microporous carbons

This paper analyzes from a fundamental point of view the adsorption of methane on microporous carbons. CH 4 adsorption on a series of microporous activated carbons (AC), activated carbon fibers (ACF) and superactivated carbons (SAC), at 298 K and 4 MPa (supercritical conditions) is analyzed. These r...

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Bibliographic Details
Published in:Microporous and mesoporous materials 2009-08, Vol.124 (1), p.110-116
Main Authors: Alcañiz-Monge, J., Lozano-Castelló, D., Cazorla-Amorós, D., Linares-Solano, A.
Format: Article
Language:English
Subjects:
Activated carbons
Adsorbents
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Methane adsorption
Microporosity
Porous materials
Surface physical chemistry
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Summary:This paper analyzes from a fundamental point of view the adsorption of methane on microporous carbons. CH 4 adsorption on a series of microporous activated carbons (AC), activated carbon fibers (ACF) and superactivated carbons (SAC), at 298 K and 4 MPa (supercritical conditions) is analyzed. These results are compared with those obtained from the adsorption of other gases (N 2 at 77 K up to 0.1 MPa and CO 2 at 273–298 K up to 4 MPa). A detailed analysis is made to obtain realistic values of the saturation pressure, the affinity coefficient and density of adsorbed CH 4. The results show that CH 4 adsorbs in narrow micropores (
ISSN:1387-1811
1873-3093
DOI:10.1016/j.micromeso.2009.04.041