Catalytic reforming process

Details Catalytic reforming process Catalytic reforming process

1985-05-02

1986-09-23

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 63, C10G 3506

Patent

active

046134239

ABSTRACT:
A process wherein, in a series of reforming zones, or reactors, each of which contains a bed, or beds of catalyst, the catalyst in the leading reforming zone, or zones, is constituted of supported platinum or supported platinum and rhenium, and the catalyst in the rearward reforming zone, or zones of the series, is constituted of platinum, rhenium, and iridium. The amount of (rhenium+iridium) relative to the platinum in the last reforming zone, or zones is present in weight ratio of at least about 1.5:1 and more preferably ranges from about 1.5:1 to about 10:1. The beds of catalyst are contacted with a hydrocarbon or naphtha feed, and hydrogen, at reforming conditions to produce a hydrocarbon, or naphtha product of improved octane, and the product is withdrawn.

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patent: 3660271 (1972-05-01), Keith et al.
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patent: 3791961 (1974-02-01), Sinfelt
patent: 3943050 (1976-03-01), Bertolacini
patent: 4155834 (1979-05-01), Gallagher
patent: 4167473 (1979-09-01), Sikonia
patent: 4174270 (1979-11-01), Mayes
patent: 4174271 (1979-11-01), Mayes

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