Catalytic naphtha cracking catalyst and process

Details Catalytic naphtha cracking catalyst and process Catalytic naphtha cracking catalyst and process

2004-11-17

2008-11-04

Brunsman, David M (Department: 1793)

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

Reexamination Certificate

active

07446071

ABSTRACT:
A process is disclosed for enhancing the production of light olefins using a catalyst with small pores. The catalyst comprises a layered zeolite material comprising an inner layer having pores of 8 or 10 membered rings and an outer layer having pores of 10 membered rings. The pores in the outer layer overlaying the pores in the inner layer. The zeolite has a silicon to aluminum atomic ratio of about 20 to about 200 and its surface acid sites external to the pores have been substantially neutralized.

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