Claims
- 1. A process for dehydrogenating dehydrogenatable C.sub.2-30 hydrocarbons comprising contacting the hydrocarbons under suitable dehydrogenation conditions in one or more reaction zones with a solid catalyst comprising a Group VIII noble metal, a Group IVA metal and a mixed magnesium and aluminum oxide carrier having a magnesium oxide structure in which Al.sup.3+ cations have replaced part of the Mg.sup.2+ cations, in which oxide the molar ratio of magnesium to aluminum ranges from 1:1 to 10:1.
- 2. The process according to claim 1 wherein the dehydrogenatable hydrocarbons are C.sub.2-5 paraffins.
- 3. The process according to claim 1 wherein the dehydrogenation is carried out at a temperature ranging from 500.degree. to 700.degree. C., a pressure ranging from 0.5 to 1.5 bars absolute, and using a space velocity (GHSV) of 10 to 10,000 N ml g.sup.-1 H.sub.-1.
- 4. A process for dehydrogenating dehydrogenatable C.sub.2-30 hydrocarbons combined with admixture of an oxygen-containing gas comprising contacting the hydrocarbons under suitable dehydrogenation conditions in one or more reaction zones with a solid catalyst comprising a Group VIII noble metal, a Group IVA metal and an inorganic oxide carrier comprising a mixed oxide of magnesium and aluminum Mg(Al)O having a magnesium oxide structure in which Al.sup.3+ cations have replaced part of the Mg.sup.2+ cations, in which oxide the molar ratio of magnesium to aluminum ranges from 1:1 to 10:1.
- 5. The process according to claim 4 wherein the dehydrogenatable hydrocarbons are C.sub.2-5 paraffins.
- 6. The process according to claim 4 wherein the oxygen-containing gas is oxygen.
- 7. The process according to claim 4 wherein the dehydrogenation is carried out at a temperature ranging from 400.degree. to 700.degree. C., a pressure ranging from 0.5 to 3 bars absolute, and using a space velocity (GHSV) of from 10 to 10,000 N ml g.sup.-1 H.sup.-1.
- 8. The process according to claim 4 wherein the surface area of the Mg(Al)O carrier is from 10 to 400 m.sup.2 /g.
- 9. The process according to claim 4 wherein the catalyst contains:
- 0.05-5.0 wt. % Group VIII noble metal,
- 0.05-7.0 wt. % Group IVA metal,
- 0-5.0 wt. % Group IA metal,
- calculated on the total weight of the catalyst.
- 10. The process according to claim 4 wherein the Group IVA metal is tin or germanium.
- 11. The process according to claim 4 wherein the Group VIII noble metal is platinum or palladium.
- 12. The process according to claim 4 wherein the Group IA metal is cesium or potassium.
Priority Claims (1)
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932173 |
Jun 1993 |
NOX |
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Parent Case Info
This application is a divisional of U.S. application Ser. No. 08/569,185, filed Dec. 14, 1995, now U.S. Pat. No. 5,817,596, which was the National Stage of International Application No. PCT/NO94/00102 filed Jan. 6, 1994 and claims priority of Norwegian Patent 932173, which was filed on Jun. 14, 1993.
US Referenced Citations (6)
Foreign Referenced Citations (1)
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Date |
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86201283.8 |
Jul 1986 |
EPX |
Divisions (1)
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569185 |
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