Hydrocarbon dehydrocyclization with an attenuated superactive mu

Details Hydrocarbon dehydrocyclization with an attenuated superactive mu Hydrocarbon dehydrocyclization with an attenuated superactive mu

1980-12-08

1982-06-29

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

585419, C10G 3506

Patent

active

043371469

ABSTRACT:
Dehydrocyclizable hydrocarbons are converted to aromatics by contacting them at hydrocarbon dehydrocyclization conditions with an attenuated superactive acidic multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing catalytically effective amounts of a halogen component, an iron component and a uniform dispersion of a catalytically effective amount of a platinum group component which is maintained in the elemental metallic state. The platinum group, pyrolyzed rhenium carbonyl, iron 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 5 wt. % rhenium, about 0.005 to about 5 wt. % iron and about 0.1 to about 3.5 wt. % halogen. A specific example of a dehydrocyclization method disclosed herein is a method for converting a feed mixture of n-hexane and n-heptane to a product mixture of benzene and toluene which involves contacting the feed mixture and a hydrogen stream with the attenuated superactive acidic multimetallic catalyst disclosed herein at hydrocarbon dehydrocyclization conditions.

REFERENCES:
patent: 3379641 (1968-04-01), Hayes
patent: 4082696 (1978-04-01), Robinson
patent: 4157989 (1979-06-01), Antos

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