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Teoret. i eksperim. khimiya. 2004. Vol.40 No. 3. p. 176-180

Effect of Increase of Extent for Hydroconversion of n-Hexane at Poisoning
External Acid Sites of PdHZSM-5 Catalyst


V. V. Bobyk, F. M. Bobonych

L. V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine
31 Prosp. Nauky, 03028 Kyiv, Ukraine. E-mail: ipcukr@sovam.com

Replacement of protons in the external acid sites of bifunctional PdHZSM-5 catalyst on tetrabutylammonia cations is accompanied by essential increase in hydroconversion of n-hexane at T = 498-548 K. On the basis of the analysis of catalytic reaction products distribution the explanation of this effect is proposed.

Key words external acid sites, hydroconversion of n-hexane, ZSM-5, potentiometric titration.