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

1975-05-27

1976-12-21

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

252441, 252466PT, B01J 1108, C10G 3508

Patent

active

039987230

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 or palladium component, a rhodium component, a rhenium component, a tin component, and a halogen component with a porous carrier material. The platinum or palladium component, rhodium component, rhenium component, tin component, and halogen component are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum or palladium metal, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 2 wt. % rhenium, about 0.01 to about 5 wt. % tin, 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 or palladium component is present therein in the elemental metallic state, substantially all of the rhenium and rhodium components are present therein 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 and substantially all of the tin component is present in an oxidation state above that of the elemental metal and in a particle size which is less than 100 Angstroms in maximum dimension. 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: 3632503 (1972-01-01), Hayes
patent: 3736251 (1973-05-01), Hayes
patent: 3830726 (1974-08-01), Weisang et al.
patent: 3840471 (1974-10-01), Acres
patent: 3895093 (1975-07-01), Weidenbach et al.
patent: 3898154 (1975-08-01), Rausch

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