Patent ID: 6402936
Filing Date: 2002-06-11
Classification: B01J,C10G

Abstract:
A catalyst comprising: (1) at least one matrix and at least one partially amorphous Y zeolite that has a peak ratio that is less than 0.4, and a crystalline fraction, expressed relative to a reference zeolite in sodium form (Na), that is less than 60%, (2) at least one element selected from group VB, (3) at least one hydro-dehydrogenating element selected from the group consisting of the elements of group VIB and group VIII, and (4) at least one promoter element that is selected from the group consisting of phosphorus, boron, and silicon,wherein the zeolite has the following characteristics: an overall Si/Al ratio that is greater than 15, an Si/Aliv framework ratio that is greater than 15, a pore volume that is at least equal to 0.2 ml/g wherein between 8% and 50% of the pore volume consists of pores that have a diameter of at least 5 nm.