Claims
- 1. A process for producing one or more aromatic compounds alone or in admixture with one or more olefins which comprises contacting under suitable conversion conditions a feedstock containing a substantial amount of at least one C.sub.2 -C.sub.12 aliphatic hydrocarbon with a conversion catalyst to provide said aromatic compound(s) and/or mixture of aromatic compound(s) and olefin(s), said catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including values substantially as set forth in Table I of the specification.
- 2. The process of claim 1 wherein the synthetic porous crystalline material is characterized by an X-ray diffraction pattern including values substantially as set forth in Table II of the specification.
- 3. The process of claim 1 wherein the synthetic porous crystalline material has a composition comprising the molar relationship
- X.sub.2 O.sub.3 :(n)YO.sub.2,
- wherein n is at least about 10, X is a trivalent element and Y is a tetravalent element.
- 4. The process of claim 2 wherein the synthetic porous crystalline material has a composition comprising the molar relationship:
- X.sub.2 O.sub.3 :(n)YO.sub.2,
- wherein n is at least about 10, X is a trivalent element and Y is a tetravalent element.
- 5. The process of claim 1 wherein the synthetic porous crystalline material possesses equilibrium adsorption capacities of greater than about 4.5 wt.% for cyclohexane vapor and greater than about 10 wt.% for n-hexane vapor.
- 6. The process of claim 3 wherein X is selected from the group consisting of aluminum, boron, gallium and combinations thereof and Y is selected from the group consisting of silicon, germanium and combinations thereof.
- 7. The process of claim 3 wherein X comprises aluminum and Y comprises silicon.
- 8. The process of claim 1 wherein said synthetic porous crystalline material has been treated to replace original cations, at least in part, with a cation or mixture of cations selected from the group consisting of hydrogen, hydrogen precursors, rare earth metals, and metals of Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB and VIII of the Periodic Table.
- 9. The process of claim 1 wherein said synthetic porous crystalline material has been thermally treated at a temperature up to about 925.degree. C. in the presence or absence of steam.
- 10. The process of claim 8 wherein said synthetic porous crystalline material has been-thermally treated at a temperature up to about 925.degree. C. in the presence or absence of steam.
- 11. The process of claim 1 wherein said synthetic porous crystalline material is combined with a matrix material.
- 12. The process of claim 11 wherein said matrix material is a silica or alumina-containing material.
- 13. The process of claim 12 wherein the catalyst is provided in the form of extrudate, beads or fluidizable microspheres.
- 14. The process of claim 1 wherein the feedstock contains at least about 50% by weight of at least one C.sub.2 -C.sub.12 aliphatic hydrocarbon.
- 15. The process of claim 1 wherein the feedstock is a raffinate from a hydrocarbon mixture from which one or more aromatics have been removed by solvent extraction.
- 16. The process of claim 1 wherein the feedstock is a Udex raffinate.
- 17. The process of claim 1 carried out at a temperature of from about 600.degree. F. to about 1400.degree. F., a pressure of from atmospheric to about 400 psig and an LHSV of from about 0.1 hr.sup.- to about 5 hr.sup.-1.
- 18. The process of claim 11 wherein said matrix material comprises zirconia, titania or mixtures thereof.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. patent application Ser. No. 254,524, filed Oct. 6, 1988, which is a continuation-in-part of U.S. patent application Ser. No. 98,176, filed Sept. 18, 1987, now abandoned, which is a continuation-in-part of U.S. patent application Ser. No. 890,268, filed July 29, 1986, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0231860 |
Aug 1987 |
EPX |
0293032 |
Nov 1988 |
EPX |
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
254524 |
Oct 1988 |
|
Parent |
98176 |
Sep 1987 |
|
Parent |
890268 |
Jul 1986 |
|