Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1975-08-11
1977-06-07
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208139, 208111, 26068368, C10G 3508
Patent
active
040282236
ABSTRACT:
Hydrocarbons are converted by contacting a hydrocarbon charge stock and a hydrogen stream at hydrocarbon conversion conditions, in a reaction zone maintained in a substantially sulfur- and water-free condition by the use of at least one guard bed, with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a tin component, a cobalt component, and a halogen component with a porous carrier material. The platinum group component, tin component, cobalt 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 group metal, about 0.01 to about 5 wt. % tin, about 0.5 to about 5 wt. % cobalt, 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 metal is present therein in the elemental metallic state, substantially all of the catalytically available cobalt 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 tin is present therein 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 under a substantially sulfur- and water-free condition with the acidic multimetallic catalyst disclosed herein at reforming conditions. The sulfur- and water-selective guard bed can be used exclusively on the hydrocarbon charge stock when the hydrocarbon stream is autogenously produced or it can be used to treat a mixture of the hydrocarbon charge stock and the hydrogen stream. In another mode of operation, separate guard beds can be used on the input hydrocarbon charge stock and on the input hydrogen stream.
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Hayes John C.
Pollitzer Ernest L.
Gantz Delbert E.
Hellwege James W.
Hoatson Jr. James R.
McBride Thomas K.
Page II William H.
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