Reforming process using monofunctional catalyst containing bismu

Details Reforming process using monofunctional catalyst containing bismu Reforming process using monofunctional catalyst containing bismu

1997-12-22

1998-12-22

Caldarola, Glenn

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

208134, 208135, 208137, 208139, 585444, 585481, 585482, 585486, 585489, 502354, 502 74, C10G 35085, C10G 35095

Patent

active

058513795

ABSTRACT:
A catalytic reforming process is disclosed using a catalyst containing a Group VIII metal, low amounts of bismuth, and a zeolite L. The catalyst is a non-acidic, monofunctional reforming catalyst. Preferably, the catalyst contains one or more halogens. Preferably, the feed includes C.sub.8 hydrocarbons. The addition of small amounts of bismuth increase or substantially maintain catalyst stability. Unexpectedly low dealkylation rates are achieved using the catalyst while reforming to produce aromatics, especially to produce xylenes such as paraxylene.

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patent: 5624656 (1997-04-01), Veduijn et al.

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