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Adsorption of Super Greenhouse Gases on Microporous Carbons

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Department of Chemical Engineering, Imperial College, London SW7 2AZ, United Kingdom
Cite this: Environ. Sci. Technol. 2005, 39, 22, 8736–8741
Publication Date (Web):October 11, 2005
Copyright © 2005 American Chemical Society

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    Grand canonical Monte Carlo simulations are reported for low molecular weight perfluorocarbons (C2F6 and CF4) and their dilute (10% molar) mixtures in N2 adsorbing unto slitlike graphite pores. Adsorption isotherms and selectivity plots are shown for various temperatures, pressures, and pore widths. It is shown how selectivities on the order of thousands may be obtained when appropriate pore widths and thermodynamic conditions are used. Selective entrapment of these super greenhouse gases onto carbon nanopores is shown to be a promising alternative in the remediation of air streams.

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     Corresponding author phone:  +44 (0) 20 7594 1569; fax:  +44 (0) 20 7594 5604; e-mail:  [email protected].

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