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6113071 
Journal Article 
THE ADSORPTION OF METHANE ETHANE MIXTURES ON ACTIVATED CARBON 
Siddiqi, KS; Thomas, WJ 
1982 
Yes 
Carbon
ISSN: 0008-6223
EISSN: 1873-3891 
20 
6 
473-479 
WOS:A1982QL97100003 
The single component adsorption of methane and ethane and also the adsorption of binary mixtures of methane and ethane have been studied in a small fixed isothermal bed containing activated carbon. Results indicate that an empirical Langmuir isotherm fits the experimental data for single components. An extended form of the empirical Langmuir isotherm, in which the parameters are obtained from single component data, satisfactorily describes the adsorption of binary mixtures. The potential theory of Polanyi is also helpful in extending the experimental data. Breakthrough curves of both components from a diluted feed of methane and ethane could be predicted with good precision for the two activated carbons studied. Furthermore, the concentration waves of the components were sufficiently spaced to suggest that these carbons may be of use as a separating agent for methane-ethane mixtures.