Patent ID: 8309782

Claim:
A process comprising subjecting a hydrocarbon feedstock to dehydrogenation in the presence of a catalyst that comprises a porous substrate, a noble metal M that is selected from the group consisting of platinum, palladium, rhodium or iridium, at least one promoter X1 that is selected from the group consisting tin, germanium, lead, or an alkali compound, and alkaline-earth compound, in which the X1/M ratio is between 0.3 and 8, the H ir /M ratio that is measured by hydrogen adsorption is more than 0.40, and the bimetallicity index BMI that is measured by hydrogen/oxygen titration is more than 108, said catalyst being produced by a process comprising incorporating X1 in two portions, a first portion before introduction of M and a second portion subsequent to introduction of M, wherein the second portion comprises a tetrachloride precursor.