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The effect of adamantane on the hydroconversion ofn-heptane over pure and platinum-containing H-Y and H-mordenite zeolites
Authors:J Valyon and J Engelhardt
Institution:(1) Central Research Institute for Chemistry, Hungarian Academy of Sciences, P.O. Box 17, H-1525 Budapest, Hungary
Abstract:The effect of adamantane (Ad) has been studied on the activity and selectivity of the H- and Pt/H-forms of zeolite Y and mordenite (MOR) in the hydroisomerization and cracking ofn-heptane at 443 K.Ad was found to induce pronounced increase in the isomerization activity and selectivity of the H-Y zeolite, while the activity of the Pt/H-Y and MOR was only moderately influenced. Findings suggest thatAd acts as a hydride transfer cocatalyst, but, its activity is controlled by the limited accessibility of the active sites within the zeolitic channels.
Keywords:Adamantane as cocatalyst            n-heptane  isomerization of  zeolites as catalysts for alkane isomerization
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