Claims
- 1. A process for producing aromatic hydrocarbons which comprises contacting hydrocarbons having 2 to 12 carbon atoms, said hydrocarbons having 2 to 12 carbon atoms comprising at least one or a mixture of two or more hydrocarbons selected from the group consisting of paraffin hydrocarbons, olefin hydrocarbons, acetylene hydrocarbons, cyclic paraffin hydrocarbons and cyclic olefin hydrocarbons, with a catalyst comprising a crystalline galloalumino silicate having a ZSM-5 type crystal structure formed by a hydrothermal reaction, said crystalline galloalumino silicate being calcined at 740.degree. to 1,000.degree. C., said contacting being carried out at a reaction temperature of 200.degree. to 800.degree. C., a reaction pressure of 0 to 30 kg/cm.sup.2 and an amount of catalyst such that a weight hourly space velocity is 0.1 to 100 hour.sup.-1.
- 2. The process of claim 1, wherein said crystalline galloalumino silicate is calcined at 740.degree. to 850.degree. C.
- 3. The process of claim 1, wherein said crystalline galloalumino silicate has a molar ratio for SiO.sub.2 /Al.sub.2 O.sub.3 of 12 to 300 and a molar ratio for Ga.sub.2 O.sub.3 /Al.sub.2 O.sub.3 of 0.0001 to 2.
- 4. The process of claim 2, wherein said crystalline galloalumino silicate has the molar ratio for SiO.sub.2 /Al.sub.2 O.sub.3 of 12 to 300 and a molar ratio for Ga.sub.2 O.sub.3 /Al.sub.2 O.sub.3 of 0.0001 to 2.
- 5. The process of claim 4, wherein said hydrocarbons having 2 to 12 carbon atoms are selected from the group consisting of ethane, propane, a butane-butylene fraction, ethylene, propylene and a naphtha fraction.
- 6. The process of claim 1, wherein the reaction temperature is 400.degree. to 650.degree. C., the reaction pressure is 0 to 10 kg/cm.sup.2 and the weight hourly space velocity is 1 to 10 hour.sup.-1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-174845 |
Jul 1987 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 07/840,647 filed Feb. 21, 1992 now U.S. Pat. No. 5,202,513, which is a continuation of application Ser. No. 07/643,152 filed Jan. 18, 1991 (abandoned), which is a continuation of application Ser. No. 07,512,559 filed Apr. 20, 1990 (abandoned), which is a continuation of application Ser. No. 07.206,226 filed Jun. 13, 1988 (abandoned).
US Referenced Citations (6)
Foreign Referenced Citations (5)
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Non-Patent Literature Citations (2)
Entry |
Kentgens et al, Chemical Physics Letters, "A .sup.69 Ga and .sup.71 Ga MAS NMR Study of the Gallium Analogue Zeolite ZSM-5", 176, 399-403 (1991). |
Bayerse et al, J. Chem. Soc. Chem. Commun., "The Removal of Gallium from the Lattice of MFI-Gallosilicates as Studied by .sup.71 Ga M.A.S.-N.M.R. Spectroscopy", 1292-1293 (1989). |
Continuations (4)
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Number |
Date |
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Parent |
840647 |
Feb 1992 |
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Parent |
643152 |
Jan 1991 |
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Parent |
512559 |
Apr 1990 |
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Parent |
206226 |
Jun 1988 |
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