| 摘要 |
A hydrocarbon cracking catalyst comprises (a) an ultrastable Y-type crystalline zeolite (b), a small pore crystalline zeolite such as ZSM-5 mordenite, erionite, zeolite A, a ZSM-type zeolite, chabazite or offretite, an (c) inorganic oxide matrix and, optionally, (d) a porous inorganic oxide component. The cracking catalyst has a high activity and selectivity for the production of high octane naphtha fractions from higher poiling point hydrocarbonaceous oils. Catalytic cracking processes utilizing the catalyst are also provided. |
