Claims
- 1. A process for converting a hydrocarbon which comprises contacting the hydrocarbon at hydrocarbon conversion conditions with an acidic catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum or palladium, about 0.01 to about 2 wt. % rhodium, about 0.01 to about 2 wt. % rhenium, about 1.01 to about 5 wt. % tin, and about 0.1 to about 3.5 wt. % halogen, wherein the platinum or palladium, rhodium, rhenium, and tin are uniformly dispersed throughout the porous carrier material, wherein substantially all of the platinum or palladium rhodium and rhenium are present in the corresponding elemental metallic states and wherein substantially all of the tin 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.
- 2. A process as defined in claim 1 wherein the porous carrier is a refractory inorganic oxide.
- 3. A process as defined in claim 2 wherein the refractory inorganic oxide is alumina.
- 4. A process as defined in claim 1 wherein the halogen is combined chloride.
- 5. A process as defined in claim 1 wherein the atomic ratio of rhodium to platinum or palladium contained in the composite is about 0.1:1 to about 2:1.
- 6. A process as defined in claim 1 wherein the atomic ratio of rhenium to platinum or palladium contained in the composite is about 0.05:1 to about 10:1.
- 7. A process as defined in claim 1 wherein the atomic ratio of tin to platinum or palladium contained in the composite is about 0.1:1 to about 3:1.
- 8. A process as defined in claim 1 wherein substantially all of the tin is present in the catalytic composite as tin oxide.
- 9. A process as defined in claim 1 wherein the composite contains about 0.05 to about 1 wt. % platinum, about 0.05 to about 1 wt. % rhodium, about 0.05 to about 1 wt. % rhenium, about 0.05 to about 1 wt. % tin, and about 0.5 to about 1.5 wt. % halogen.
- 10. A process as defined in claim 1 wherein the contacting of the hydrocarbon with the catalytic composite is performed in the presence of hydrogen.
- 11. A process as defined in claim 1 wherein the type of hydrocarbon conversion is catalytic reforming of a gasoline fraction to produce a high octane reformate, wherein the hydrocarbon is contained in the gasoline fraction, wherein the contacting is performed in the presence of hydrogen and wherein the hydrocarbon conversion conditions are reforming conditions.
- 12. A process as defined in claim 11 wherein the reforming conditions include a temperature of about 800.degree. to about 1100.degree. F., a pressure of about 0 to about 1000 psig., a liquid hourly space velocity of about 0.1 to about 10 hr..sup.-.sup.1, and a mole ratio of hydrogen to hydrocarbon of about 1:1 to about 20:1.
- 13. A process as defined in claim 11 wherein the contacting is performed in a substantially water-free environment.
- 14. A process as defined in claim 11 wherein the reforming conditions include a pressure of about 50 to about 350 psig.
- 15. A process as defined in claim 9 wherein the type of hydrocarbon conversion is catalytic reforming of a gasoline fraction to produce a high octane reformate, wherein the hydrocarbon is contained in the gasoline fraction, wherein the contacting is performed in the presence of hydrogen, and wherein the hydrocaron conversion conditions are reforming conditions.
- 16. An acidic catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum or palladium, 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, wherein the platinum or palladium, rhodium, rhenium, and tin are uniformly dispersed throughout the porous carrier material, wherein substantially all of the platinum or palladium rhodium and rhenium are present in the corresponding elemental metallic states, and wherein substantially all of the tin 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.
CROSS-REFERENCES TO RELATED APPLICATIONS
This application is a continuation-in-part of my prior copending application Ser. No. 480,793 filed June 19, 1974, now U.S. Pat. No. 3,898,154, which in turn is a continuation-in-part of my prior application Ser. No. 376,841 filed July 5, 1973, and now U.S. Pat. No. 3,846,283, which in turn is a continuation-in-part of my prior application Ser. No. 201,576 filed Nov. 23, 1971, and now U.S. Pat. No. 3,745,112, and which in turn is a continuation-in-part of my prior application Ser. No. 807,910 filed Mar. 17, 1969, and now U.S. Pat. No. 3,740,328. All of the teachings of these prior applications are specifically incorporated herein by reference.
US Referenced Citations (6)
Continuation in Parts (4)
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Number |
Date |
Country |
Parent |
480793 |
Jun 1974 |
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Parent |
376841 |
Jul 1973 |
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Parent |
201576 |
Nov 1971 |
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Parent |
807910 |
Mar 1969 |
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