| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 76772 | Microporous and Mesoporous Materials | 2007 | 7 Pages |
Abstract
Ion exchange of H–SAPO-34 zeolite membranes with Li+, Na+, K+, NH4+, and Cu2+ cations in non-aqueous solutions increased CO2/CH4 ideal and separation selectivities up to 60%, but increased H2/CH4 ideal and separation selectivities less than 18%. Ion exchange decreased permeances, and the decrease was larger for large cations, apparently due to steric hindrance. Exchange did not degrade SAPO-34 crystals or membranes, but changed adsorption properties for some ions.
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Authors
Mei Hong, Shiguang Li, Hans F. Funke, John L. Falconer, Richard D. Noble,