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A catalyst composition and a process for using of the catalyst composition in a hydrocarbon conversion process are disclosed. The composition comprises an inorganic support, a Group VA metal or metal oxide, and optionally a Group IVA metal or metal oxide and a Group VIII metal or metal oxide. The pr

A catalyst composition and a process for using of the catalyst composition in a hydrocarbon conversion process are disclosed. The composition comprises an inorganic support, a Group VA metal or metal oxide, and optionally a Group IVA metal or metal oxide and a Group VIII metal or metal oxide. The process comprises contacting a fluid which comprises at least one saturated hydrocarbon with the catalyst composition under a condition sufficient to effect the conversion of the hydrocarbon to an olefin. Also disclosed is a process for producing the catalyst composition.

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[ That which is claimed is:] [51.] A process for converting an aliphatic hydrocarbon to an olefin comprising contacting said aliphatic hydrocarbon with a catalyst composition wherein said contacting is carried out in the presence of steam; said catalyst composition comprises a first catalyst which c

[ That which is claimed is:] [51.] A process for converting an aliphatic hydrocarbon to an olefin comprising contacting said aliphatic hydrocarbon with a catalyst composition wherein said contacting is carried out in the presence of steam; said catalyst composition comprises a first catalyst which comprises at least one first inorganic support, platinum, and tin and a second catalyst which comprises a second inorganic support and bismuth; and said first or second inorganic support is selected from the group consisting of clays, inorganic oxides, spinels, and combinations of two or more thereof.