PROCESS FOR REDUCING THE CRACKING ACTIVITY AND INCREASING THE CONVERSION AND SELECTIVITY IN DEHYDROGENATION AND ISOMERIZATION REACTIONS BY NON-AQUEOUS EXCHANGE OF ACIDIC SITES ON MOLECULAR SIEVES

摘要

Surface-active catalytic sites are deactivated on catalyst support materials wherein the catalyst comprises crystalline aluminosilicate or borosilicate molecular sieve catalytic compositions without deactivating all acidic sites of the molecular sieve. Resulting catalyst compositions are useful in dehydrogenating and/or isomerizing hydrocarbons.