A PROCESS FOR RECONSTRUCTING A SPENT DEHYDROGENATION CATALYST

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Processes for reconstructing a spent dehydrogenation catalyst and producing an unsaturated hydrocarbon. The process includes contacting a spent dehydrogenation catalyst containing a group 13 metal, a group 1 metal, a rare earth metal, a group 8-11 metal, and a catalyst support, with a first stream comprising oxygen (O2), at a first temperature for a first duration in a reactor; and subsequently contacting the resulting catalyst with a second stream containing a hydrocarbon at a second temperature for a second duration in the reactor to dehydrogenate at least a portion of the hydrocarbon and produce a products stream containing an unsaturated hydrocarbon. The first temperature can be higher than the second temperature, and the first duration can be longer than the second duration.