Hydrocarbon conversion with an acidic multimetallic catalytic co

Details Hydrocarbon conversion with an acidic multimetallic catalytic co Hydrocarbon conversion with an acidic multimetallic catalytic co

1978-08-07

1980-06-10

Davis, C.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

252441, C10G 3508

Patent

active

042071704

ABSTRACT:
Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a nickel component, a cadmium component, and a halogen component with a porous carrier material. The platinum group, nickel, 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 0.05 to about 5 wt. % nickel, about 0.01 to about 5 wt. % cadmium, and about 0.1 to about 3.5 wt. % halogen. Moreover, these metallic components are uniformly dispersed throughout the porous carrier material in carefully controlled oxidation states such that substantially all of the platinum group component is present therein in the elemental metallic state, substantially all of the catalytically available nickel component is present in the elemental metallic state or in a state which is reducible to the elemental metallic state under hydrocarbon conversion conditions, or in a mixture of these states, while substantially all of the cadmium component is present in an oxidation state above that of the elemental metal. A specific example of the type of hydrocarbon conversion process disclosed 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 acidic multimetallic catalyst disclosed herein at reforming conditions.

REFERENCES:
patent: 3956107 (1976-05-01), Mitchell
patent: 3997429 (1976-12-01), Rashkin
patent: 4061592 (1977-12-01), Buss

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