A catalyst composition comprising a minor amount of a low acidity, highly dealuminated
ultra stable Y zeolite having an Alpha value of less than about 5, preferable less
than about 3 and Broensted acidity measured by FT-IR from about 1 to about 20,
preferably from about 1-10, micro mole/g of, a homogeneous, amorphous silica-alumina
cracking component having an SB ratio of from about 0.7 to about 1.3, wherein a
crystalline alumina phase is present in an amount of no greater than about 10%,
preferably no greater than 5% and a catalytic amount of hydrogenation component
selected from the group consisting of a Group VI metal, a Group VIII metal, and
mixtures thereof is disclosed. The present invention provides for a process for
converting hydrocarbonaceous oils comprising contacting the hydrocarbonaceous oils
with the catalyst under suitable hydrocarbon conversion conditions. Such processes
in include, but are not limited to, single stage hydrocracking, two-stage hydrocracking,
series-flow hydrocracking, mild hydrocracking, lube hydrocracking, hydrotreating,
lube hydrofinishing, hydrodesulphurization, hydrodenitrification, catalytic dewaxing
and catalytic cracking.
