Hydrocarbon dehydrogenation catalyst and process

A process for dehydrogenating propane to produce propylene comprising:

• contacting propane under catalytic dehydrogenation conditions with a catalyst comprising a platinum group metal-containing component, a zinc-containing component and a magnesium-containing component, at concentration levels from about 0.01 to about 2.0 weight percent, from about 0.01 to about 15.0 weight percent and from about 0.30 to about 1.14 weight percent, respectively, in each case calculated as the elemental metal and as a percentage of the total catalyst, on a support comprising ZSM or a crystalline borosilicate having a ZSM structure, to thereby produce propylene at a selectivity of at least 90%.