Stable, high-yield reforming catalyst

Details Stable, high-yield reforming catalyst Stable, high-yield reforming catalyst

1996-12-13

1998-05-26

Caldarola, Glenn A.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

585419, 585482, 585444, 585422, 585467, 585476, 585480, 585486, C10G 35095, C07C 500

Patent

active

057559562

ABSTRACT:
A reforming process, selective for the dehydrocyclization of paraffins to aromatics, is effected using a catalyst containing multiple Group VIII (8-10) noble metals having different gradients within the catalyst and a nonacidic large-pore molecular sieve. The use of this bed of catalyst results in greater selectivity of conversion of paraffins to aromatics and improved catalyst stability, particularly in the presence of small amounts of sulfur.

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patent: 4914068 (1990-04-01), Cross et al.
patent: 4992158 (1991-02-01), Schweizer
patent: 5017541 (1991-05-01), Schmidit et al.

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