In double-bond displacement of hexene-1, 4-methylpentene-2, and 2-methylpentene-1, and cistrans conversion of 3-methylpentene-2, the activities of NaY, ZnNaY, and HNaY zeolites decrease linearly with increasing amount of adsorbed pyridine.
The deactivating effect of pyridine adsorption is not uniform. It is exhibited most strongly in the case of HNaY.
In the case of double-bond displacement of 2-methylpentene-1 and cis-trans conversion of 3-methylpentene-2, complete deactivation of NaY and ZnNaY by pyridine is not observed.
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Freidlin, L.K., Sharf, V.Z. & German, E.N. Deactivation of zeolites by pyridine in double bond displacement and cis-trans conversion of olefins. Russ Chem Bull 17, 437–438 (1968). https://doi.org/10.1007/BF00908470
- Double Bond
- Adsorbed Pyridine
- Complete Deactivation