Hydrocracking catalyst

A process of preparing a hydrocracking catalyst carrier, which process comprises subjecting a mixture of amorphous binder and zeolite Y having a silica to alumina molar ratio of at least 10 to calcination at a temperature of from 700 to 1000° C.

(canceled)

A hydrocracking catalyst carrier which comprises amorphous binder and zeolite Y having a silica to alumina molar ratio of at least 10, the infrared spectrum of which carrier has a peak at 3690 cm−1, substantially reduced peaks at 3630 cm−1 and 3565 cm−1 and no peak at 3600 cm−1.

A hydrocracking catalyst carrier which comprises amorphous binder and zeolite Y having a silica to alumina molar ratio of at least 10, which carrier has an acidity as measured by exchange with perdeuterated benzene of at most 20 micromole/gram.

A hydrocracking catalyst which comprises a Group VIII metal, a Group VIB metal and a carrier comprising amorphous binder and zeolite Y having a silica to alumina molar ratio of at least 10, the infrared spectrum of which catalyst has a peak at 3690 cm−1, substantially reduced peaks at 3630 cm−1 and 3565 cm−1 and no peak at 3600 cm−1.

A hydrocracking catalyst which comprises a Group VIII metal, a Group VIB metal and a carrier comprising an amorphous binder and zeolite Y having a silica to alumina molar ratio of at least 10, which catalyst has an acidity as measured by exchange with perdeuterated benzene of at most 20 micromole/gram.