Hydrocarbon conversion with a superactive multimetallic catalyti

Details Hydrocarbon conversion with a superactive multimetallic catalyti Hydrocarbon conversion with a superactive multimetallic catalyti

1978-03-20

1979-04-17

Davis, C.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

208112, 252441, 260666R, 260673, 2606735, 26068365, C10G 3508

Patent

active

041499620

ABSTRACT:
Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with a novel superactive multimetallic reduced catalytic composite comprising a combination of a catalytically effective amount of an adsorbed rhenium oxide component with a porous carrier material containing a uniform dispersion of a catalytically effective amount of a platinum group component which is maintained in the elemental metallic state. In a highly preferred embodiment, this novel catalytic composite also contains a catalytically effective amount of a halogen component. The platinum group component, adsorbed rhenium oxide component and optional halogen component are preferably present in the multimetallic catalytic composite in amounts, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt.% platinum group metal, about 0.01 to about 5 wt.% rhenium and about 0.1 to about 3.5 wt.% halogen. A key feature associated with the preparation of the subject catalytic composite is reaction of a rhenium oxide reagent with a porous carrier material containing a uniform dispersion of a platinum group metal maintained in the elemental state, whereby the interaction of the rhenium oxide moiety with the platinum group metal moiety is maximized due to the platinophilic (i.e. platinum-seeking) propensities of the oxygen ligands used in the rhenium reagent. A specific example of the type of hydrocarbon conversion process disclosed herein is a process for the catalytic reforming of a low octane gasoline fraction wherein the gasoline fraction and a hydrogen stream are contacted with the subject superactive multimetallic catalytic composite at reforming conditions.

REFERENCES:
patent: 3749752 (1973-07-01), Pollitzer et al.
patent: 3816300 (1974-06-01), Gallagher et al.

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