Heats of adsorption of CO/sub 2/ and NH/sub 3/ on synthetic zeolites. communication 5. Adsorption of carbon dioxide on calcium zeolites

Journal Article · Tue Dec 10 04:00:00 EST 1985 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

OSTI ID:5195783

Zuerev, A V; Khvoshchev, S S

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.

• Research Organization: I.V. Grebenshchikov Institute of Silicate Chemistry, Leningrad
• OSTI ID: 5195783
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 34:6, PT. 1; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ADSORPTION
ADSORPTION HEAT
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
AMMONIA
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ENTHALPY
HYDRIDES
HYDROGEN COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE
ION EXCHANGE MATERIALS
MATERIALS
MATERIALS TESTING
MINERALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SODIUM COMPOUNDS
SORPTION
TESTING
THERMODYNAMIC PROPERTIES
ZEOLITES