Claims
- 1. A hydrocarbon conversion process comprising contacting a hydrocarbon under hydrocarbon conversion conditions with a catalyst to give a hydroconverted product, the catalyst consisting essentially of a nonhomogeneous crystalline silicon enhanced alumina (SEAL) having a bulk empirical formula of Al.sub.2-x Si.sub.x O.sub.3 F.sub.x where x varies from about 0.01 to about 0.5, the SEAL characterized in that it has a three-dimensional pore structure with the pores having diameters in the range of about 20 to about 300 .ANG., has a crystal structure characteristic of alumina and where the surface of the SEAL has a higher concentration of silicon than the interior of the SEAL.
- 2. The process of claim 1 where the hydrocarbon conversion process is hydrocracking.
- 3. The process of claim 1 where the hydrocarbon conversion process is cracking.
- 4. The process of claim 1 where the hydrocarbon conversion process is alkylation.
- 5. The process of claim 1 where the SEAL is in the shape of spheres.
- 6. The process of claim 1 where the SEAL has depsosited thereon at least one metal selected from the group consisting of Group VIII and Group VI-B metals.
- 7. A hydrocarbon conversion process comprising contacting a hydrocarbon under hydrocarbon conversion conditions with a catalyst to give a hydroconverted product, the catalyst consisting essentially of a non-homogeneous crystalline silicon enhanced alumina (SEAL) having a bulk empirical formula of Al.sub.2-x Si.sub.x O.sub.3 F.sub.y where x varies from about 0.01 to about 0.5, y varies from about 0.01 to about x, the SEAL characterized in that it has both strong and weak acid sites, has a crystal structure characteristic of alumina, has a three-dimensional pore structure with pores having diameters in the range of about 20 to about 300 .ANG., and where the surface of the SEAL has a higher concentration of silicon than the interior of the SEAL.
- 8. The process of claim 7 where the hydrocarbon conversion process is hydrocracking.
- 9. The process of claim 7 where the hydrocarbon conversion process is cracking.
- 10. The process of claim 7 where the hydrocarbon conversion process is alkylation.
- 11. The process of claim 7 where the SEAL is in the shape of spheres.
- 12. The process of claim 7 where the SEAL has deposited thereon at least one metal selected from the group consisting of Group VIII and Group VI-B metals.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of out copending application Ser. No. 07/404,550 filed on Sep. 7, 1989 now U.S. Pat. No. 5,008,233.
US Referenced Citations (13)
Non-Patent Literature Citations (3)
Entry |
"Zeolite Chemistry V-Substitution of Silicon for Aluminum in Zeolites via Reaction with Aqueous Fluorosilicate" published at p. 87 of Proceedings of 6th International Zeolite Conference, 1983, edited by David Olson; Butterworth, Guildford, U.K. |
"Faujasites Dealuminated with Ammonium Hexafluorosilicate; Variables Affecting the Method of Preparation" by G. Garralon et al., at p. 268 of Zeolites, vol. 8, Jul. 1988. |
Merck Index, 11th Edition, (1989) published by Merck & Co., Rahway, N.J., U.S.A. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
404550 |
Sep 1989 |
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