Patent ID: 7713498

Claim:
A manufacturing plant for carrying out a process for the catalytic dehydrogenation of a first unsaturated hydrocarbon to form a second unsaturated hydrocarbon which has one olefinically unsaturated bond more than the first unsaturated hydrocarbon and otherwise an unchanged carbon skeleton, which plant comprises: a first catalyst bed which is configured to receive a feed comprising the first unsaturated hydrocarbon, and which first catalyst bed comprises a first dehydrogenation catalyst having a temperature parameter T 1 , and a selectivity parameter S 1 , and a second catalyst bed which is configured to receive a reaction product formed in the first catalyst bed comprising the first unsaturated hydrocarbon and the second unsaturated hydrocarbon, and which second catalyst bed comprises a second dehydrogenation catalyst having a temperature parameter T 2 and a selectivity parameter S 2 , such that T 1 <T 2 and S 1 <S 2 , wherein “temperature parameter” means the temperature, in ° C., at which the dehydrogenation catalyst in question provides under defined testing conditions a conversion of the first unsaturated hydrocarbon of 70% mole, and “selectivity parameter” means the selectivity, in % mole, to the second unsaturated hydrocarbon which is then achieved.