Hydrocarbon dehydrocyclization with an acidic multimetallic cata

Details Hydrocarbon dehydrocyclization with an acidic multimetallic cata Hydrocarbon dehydrocyclization with an acidic multimetallic cata

1981-09-11

1982-11-30

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

585419, C10G 3509

Patent

active

043614795

ABSTRACT:
Dehydrocyclizable hydrocarbons are converted to aromatics by contacting them at hydrocarbon dehydrocyclization conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a pyrolyzed ruthenium carbonyl component, a rhenium component, and a halogen component with a porous carrier material. The platinum group, ruthenium, rhenium and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % carbonyl-derived ruthenium, 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 ruthenium carbonyl complex with a porous carrier material containing a uniform dispersion of a platinum group component maintained in the elemental state, whereby the interaction of the ruthenium moiety with the platinum group moiety is maximized due to the platinophilic (i.e. platinum-seeking) propensities of the carbon monoxide ligand used in the ruthenium reagent.

REFERENCES:
patent: 4268377 (1981-05-01), Antos

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