Importance

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Abstract

Methods for dehydrogenating one or more alkanes. A catalyst can be contacted with an alkane under a pressure of less than 101 kPa to produce a coked catalyst and a dehydrogenated product. The dehydrogenated product can be separated from the coked catalyst and the coked catalyst can be contacted with a purge fluid to remove at least a portion of any residual alkane, any residual alkene, or a combination thereof from the coked catalyst. The coked catalyst can be contacted with an oxygen-containing fluid and at least a portion of the coke disposed on the catalyst can be combusted in the presence of the oxygen-containing fluid to produce a decoked catalyst. The decoked catalyst can be contacted with a reducing gas to produce a regenerated catalyst and an off-gas. Additional alkane can be contacted with the regenerated catalyst to produce additional dehydrogenated product and additional coked catalyst.

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First Claim