Middle distillate selective hydrocracking process

Details Middle distillate selective hydrocracking process Middle distillate selective hydrocracking process

2006-05-23

2006-05-23

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

C208S108000, C208S111300, C208S111350

Reexamination Certificate

active

07048845

ABSTRACT:
Increased yields of middle distillate products are obtained in a hydrocracking process by the use of a catalyst containing a Beta zeolite which has been hydrothermally treated to adjust the distribution of relatively weak and strong acid sites. The number of strong acid sites is reduced, preferably by steaming at a temperature above 750° C. for at least one hour, with the acidity distribution being measured by pyridine IR adsorption values taken at 150° C., and 300° C., and 450° C.

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