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1. CA2082430 - CATALYTIC COMPOSITIONS

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WO 91/17825 PCT/US91/03379
Claims
1. A catalytic composite comprising a combination of a platinum component, optionally a second metal component selected from tin, cobalt, nickel, copper, palladium, germanium, or rhenium, and a halogen component with a porous carrier material, wherein the components are present in amounts sufficient to result in the catalytic composite containing, on an elemental basis, about 0.06 to about 1 wt. percent platinum metal, about 0.1 to about 1 wt. percent of said second metal if present, and about 0.1 to about 3.5 wt. percent halogen, wherein the metallic components are substantially uniformly distributed throughout the porous carrier support material, and wherein the porous carrier material is a spherical gamma alumina having a total mercury pore volume of about 0.60 to about 0.95 cc/g, a total nitrogen pore volume of about 0.35 to about 0.65 cc/g, a fresh BET surface area of about 170 m2/g to about 240 m2/g, and wherein the porous carrier material further comprises a pore structure having superpores with a pore diameter of about 200 - 10,000 or greater nm and mesopores with a pore diameter of about 5 - 20 nm interconnected therewith, and wherein at least 80% of the total nitrogen pore volume resides in pores under 150 Å in diameter.
2. A catalytic composite according to claim 1, wherein the second metal is tin.
3. A catalytic composite according to claim 2, wherein the halogen is chlorine.
4. The catalytic composite according to claim 3, wherein the components are present in amounts sufficient to result in a catalytic composite containing, on an elemental basis, about 0.2 - 0.4 wt. % of the platinum metal, about 0.2 - 0.5 wt. % tin, and about 0.6 - 1.2 wt. % of chlorine.
WO 91/17825 PCT/US91/03379
5. The catalytic composite according to claim 5, wherein the chlorine is present in an amount of about 0.85 - 1.1 wt. %.
6. The catalytic composite according to claim 2, wherein the halogen component is fluorine.
7. The catalytic composite according to claim 1, wherein the components are present in amounts sufficient to result in a catalytic composite containing, on an elemental basis, about 0.2 - 0.4 wt. % platinum, about 0.2 - 0.5 wt. % of rhenium, and about 0.6 - 1.2 wt. % chlorine, said composite additionally containing a sulfur component in an amount sufficient to result in a catalytic composite containing about 0.05 to about 0.5 wt. % sulfur.
8. The catalytic composite according to claim 2, wherein at least a portion of the metallic ingredients in the composite are in the form of an alloy.
9. A bimetallic catalytic composite comprising a combination of a platinum component, a tin component, and a chlorine component with a porous spherical alumina carrier, wherein said components are present in amounts sufficient to result in the catalytic composite containing, on an elemental basis, 0.06 - 1.0 wt. percent platinum metal, 0.1 - 1.0 wt. percent tin, and 0.6 - 1.2 wt. percent chlorine, said metallic components being substantially uniformly distributed throughout the porous spherical alumina carrier, and wherein said porous spherical alumina carrier is of gamma alumina and has a total mercury pore volume of 0.60 to 0.95 cc/g, a total nitrogen pore volume of 0.35 to 0.65 cc/g, a fresh BET surface area of about 170 m2/g to about 240 m2/g, and wherein the porous spherical alumina further comprises a pore structure having superpores with a pore diameter of 200 - 10,000 nm and mesopores with a pore diameter of 5 20 nm interconnected therewith, and wherein at least 80%
WO 91/17825 PCT/US91/03379
of the total nitrogen pore volume resides in pores of less than 150 Å in diameter.
10. The catalytic composite according to claim 9, wherein the total mercury pore volume is 0.7 - 0.8 cc/g, the total nitrogen pore volume is 0.45 0.55 cc/g, the surface area is 180 - 220 m2/g, and wherein the superpore fractional surface is 0.2 - 0.7.
11. The catalytic composite according to claim 10, wherein the superpore fractional surface is 0.3 0.5.
12. A process for converting a hydrocarbon which comprises contacting the hydrocarbon and hydrogen gas with a catalytic composite according to claim 1 at hydrocarbon conversion conditions.
13. A process including hydrogenation, dehydrogenation, and dehydrocyclization of hydrocarbons comprising contacting the hydrocarbons with hydrogen gas and a catalytic composite as defined in claim 1 at hydrocarbon conversion conditions.
14. A process for reforming a gasoline fraction which comprises contacting the gasoline fraction and hydrogen gas with a catalytic composite according to claim 1 at reforming conditions.
15. The process according to claim 14 wherein the reforming conditions include a temperature of 800° to about 1100°F, a pressure from about 0 to about 1000 psig, a liquid hourly space velocity of 0.1 to about 10 hr-1, and a mole ratio of hydrogen to hydrocarbon of 1:1 to about 20:1.