CRACKING CATALYST, PROCESS FOR PREPARATION THEREOF, AND PROCESS FOR CATALYTIC CRACKING OF HYDROCARBON OIL

摘要

A cracking catalyst which has high cracking activity and makes it possible to produce high-octane FCC gasoline through efficient progress without lowering the yield of gasoline; a process for the preparation of the catalyst; and a process for catalytic cracking of hydrocarbon oil with the same. A catalyst for catalytic cracking of hydrocarbon oil comprising a crystalline aluminosilicate having a predetermined composition, a binder, and clay mineral, which has contents of sodium and potassium in terms of oxides (Na<SUB>2</SUB>O and K<SUB>2</SUB>O) of 0.5% by mass or below, contents of rare earth metals in terms of oxides (RE<SUB>2</SUB>O<SUB>3</SUB> wherein RE is a rare earth element) of 3.0% by mass or below, a mass ratio of [RE<SUB>2</SUB>O<SUB>3</SUB> + Na<SUB>2</SUB>O + K<SUB>2</SUB>O]/[crystalline aluminosilicate] of 0.1 or below, and a xenon adsorption of at least 2.20OE0<SUP>20</SUP> molecules per g of the catalyst as determined at 25°C and a xenon partial pressure of 650torr; a process for the preparation of the catalyst; and a process for catalytic cracking of hydrocarbon oil with the same.