Mineral oils: processes and products – Chemical conversion of hydrocarbons – Reforming
Patent
1980-11-03
1981-10-20
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Reforming
585415, 585419, C07C 1508, C10G 3509, B01J 2708
Patent
active
042959608
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, a cadmium 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, cadmium 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 0.01 to about 5 wt. % cadmium 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.
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Gantz Delbert E.
Hoatson Jr. James R.
Morris Louis A.
Page II William H.
Schmitkons G. E.
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