Adsorption of benzene on a range of activated Y zeolites
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 86 (23) , 3961-3966
- https://doi.org/10.1039/ft9908603961
Abstract
The adsorption of benzene on calcined LiY, NaY, KY, RbNaY, CsNaY, CeKY, HY and on a range of calcined and reduced nickel-exchanged Y zeolites has been investigated by infrared and chromatographic techniques. The nature of the alkali-metal cation is shown to influence strongly the extent of the zeolite–benzene interaction; the strength of benzene adsorption increases in the order: CsNaY < RbNaY < KY < NaY < LiY. Benzene interacted weakly with the CeKY and HY samples. Reduction of the nickel-exchanged Y zeolites lowered the overall strength of benzene adsorption. The strongly adsorbed aromatic phase (on LiY, NaY or the Ni2+-exchanged forms) closely resembles crystalline benzene. Benzene desorption from the zeolite surface as a function of temperature is also considered.Keywords
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