MESOPOROUS FCC CATALYST FORMULATED WITH GIBBSITE AND RARE EARTH OXIDE

摘要

A FCC catalyst having improved coke selectivity and a FCC process for converting hydrocarbon feedstocks to lower boiling products. The catalyst comprises a crystalline aluminosilicate zeolite, gibbsite, rare earth metal comp ound and a silica matrix prepared from at least one of a silica sol made by an ion-exchange process and an acidic silica sol prepared by mixing sodium silicate , an acid and an aluminum salt of an acid.