Claims
- 1. A dehydrocyclization process comprising contacting C.sub.6 -C.sub.10 aliphatic hydrocarbons at a pressure of from about 0 psig to about 600 psig, a temperature of from about 800.degree. F. to about 1200.degree. F., a liquid hourly space velocity of from about 0.1 hr.sup.-1 to about 10 hr.sup.-1 and a molar ratio of hydrogen to said hydrocarbons of from about 0.1 to about 10 with a catalyst composite comprising nonacidic L zeolite, a catalytically effective amount of Group VIII metal component, and a silica support matrix, said catalytic composite being produced by the method comprising admixing said nonacidic L zeolite with an alkali metal silicate sol, causing the zeolite-containing sol to gel while maintaining the pH of the sol while in contact with the zeolite at a value of at least 7, recovering the resulting catalytic composite, and incorporating a catalytically effective amount of a Group VIII metal in said catalytic composite.
- 2. The process of claim 1 further characterized in that the support matrix is derived from a high pH gelation of a lithium silicate sol.
- 3. The process of claim 1 further characterized in that the catalytic composite comprises from about 25 to 75 wt. % nonacidic zeolite based on the weight of the zeolite and support matrix.
- 4. The process of claim 1 further characterized in that the Group VIII metal component comprises a platinum component.
- 5. The process of claim 1 further characterized in that the catalytic composite comprises from about 0.01 to about 5.0 wt. % of the Group VIII metal component based on the weight of the zeolite, support matrix, and Group VIII metal component.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a division of prior copending application, Ser. No. 736,048, filed May 20, 1985, the contents of which are incorporated herein by reference thereto.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2360540 |
Sep 1975 |
FRX |
Divisions (1)
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Number |
Date |
Country |
Parent |
736048 |
May 1985 |
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