Abstract
The authors study the changes in adsorption heat of CO/sub 2/ upon the substitution of Na/sup +/ by Ca/sup 2 +/ in faujasite, chabazite, mordenite, erionite, and L zeolites. The substitution of sodium ions by calcuium ions in the crystal lattices of faujasites, chabazites, mordenites, and erionites leads to an increase in the heats of adsorption of carbon dioxide at relatively low occupancies. The extent of the occupancy ranges, for which enhanced heats of adsorption are found, correlate in general with the amounts of calcium cations which may directly interact with the adsorbed molecules.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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