PHYSICO-CHEMICAL AND CATALYTIC PROPERTIES OF Y ZEOLITES WITH HIGH MODULUS OBTAINED BY DIRECT SYNTHESIS. PREPARATION OF PILOT LOT OF NaY ZEOLITE WITH HIGH MODULUS

摘要

The catalytic cracking of gas oil, adsorptive and acidic properties have been in-vestigated over catalysts containing Y, ultrastable zeolites Y (USY and LZ-210) and high modulus zeolite Y (HMY) obtained by direct synthesis. The catalyst with HMY give higher gasoline and coke selectivities compared with catalysts con-taining Y and ultrastable zeolites Y.