Surface modified porous acidic crystalline catalyst

Details Surface modified porous acidic crystalline catalyst Surface modified porous acidic crystalline catalyst

1991-11-26

1993-10-05

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 60, 502 64, B01J 2928, B01J 3700

Patent

active

052504840

ABSTRACT:
A surface-inactivated catalyst composition comprising acidic porous crystalline material, e.g., ZSM-23, having active internal Bronsted acid sites and containing surface-inactivating material having a boron to nitrogen bond is prepared by contacting the surface with aqueous ammonia borane solution. 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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