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US 4,159,970 AGranted
Alkaline earth oxides promoted with manganese oxide and/or rhenium oxide as catalysts for cracking and dehydrocyclizing of alkanes
AssigneePhillips Petroleum Company
InventorLouis F. Heckelsberg
Life of this patent
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Abstract
Alkanes are catalytically converted employing a catalyst comprising at least one alkaline earth oxide together with a promoting amount of manganese oxides and/or rhenium oxide. When the catalyst is treated with an oxygen-containing gas, such as air, prior to contacting the alkanes conversion by cracking is favored. When the catalyst is treated with hydrogen prior to contacting the alkanes dehydrocyclization is favored. A composition of matter is disclosed suitable for use as a catalyst for converting alkanes.
Claims11
A composition of matter consisting essentially of components selected from the group consisting of:
- A. two alkaline earth metal oxides wherein the alkaline earth metal is selected from the group consisting of magnesium, calcium, strontium and barium and a promoting amount of a mixture of manganese oxide and rhenium oxide
- B. at least one alkaline earth metal oxide wherein the alkaline earth metal is selected from the group consisting of magnesium, calcium, strontium and barium and a promoting amount of rhenium oxide
- C. an alkaline earth metal oxide wherein the alkaline earth metal is selected from the group consisting of strontium and barium, and a promoting amount of a mixture of manganese oxide and rhenium oxide.
Dependencies are inferred from the claim text.