DEHYDROCYCLIZATION AND OTHER REACTIONS OF n-HEXANE ON Pt BASED CATALYSTS
Professor Zoltan Paal
Institute of Isotopes
Hungarian Academy of Sciences
Friday, June 21, 1996, 11:00 a.m.
Ben Bandy Conference Room
Center for Applied Energy Research
Metal catalyzed reactions over Pt catalysts include the skeletal rearrangements hydrogenolysis, isomerization, C5-cyclization, aromatization and also the nonskeletal dehydrogenation reaction. Various mechanisms have been proposed for them. Now it is clear that all processes can take place on metallic centres only, although the cooperation of acidic and metallic centres may certainly accelerate the overall process.
The possibilities of bifunctional and monofunctional reactions together with the effect of hydrogen pressure on the selectivities on various catalysts will be discussed. Hydrogen pressure can change the importance of acidic and metallic routes, as shown by various selectivity values. Possible acid-metal and base-metal cooperation will be considered. The effect of other components on selectivities will be tackled.