Coke-selectivated porous acidic crystalline catalyst, its prepar

Details Coke-selectivated porous acidic crystalline catalyst, its prepar Coke-selectivated porous acidic crystalline catalyst, its prepar

1991-12-11

1993-08-10

McFarlane, Anthony

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

Zsm type

502 64, 585533, B01J 2906

Patent

active

052348750

ABSTRACT:
A surface-inactivated catalyst composition comprising acidic porous crystalline material, e.g., ZSM-23, having active internal Bronsted acid sites and containing coke-inactivated external acid sites is prepared by contacting the catalyst under high pressure coking conditions, e.g. 800 psig. The catalyst may be used for organic compound conversion, e.g., oligomerization of lower olefins to produce distillate boiling range materials having reduced methyl branching and increased cetane number.

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