Patent ID: 7388119

Claim:
A process for the hydrogenation of at least one substituted or unsubstituted, monocyclic or polycyclic aromatic, comprising bringing the aromatic or aromatics into contact with a hydrogenation gas in the presence of a catalyst which comprises at least one metal of transition group VIII of the Periodic Table as active metal , in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, applied to a support, where from 10 to 50% of the pore volume of the support is made up by macropores having a pore diameter in the range from 50 nm to 10,000 nm and from 50 to 90% of the pore volume of the support is made up by mesopores having a pore diameter in the range from 2 to 50 nm, where the sum of the pore volumes is 100%, wherein the hydrogenation gas is obtained in the dehydrogenation of ethylbenzene to styrene or of propane to propene and wherein the hydrogenation gas comprises: from 50 to 98% by volume of H 2 ; less than 5% by volume of CO; from 0.01 to 15% by volume of CO 2 ; from 0 to 2% by volume of water; from 0 to 5% by volume of N 2 ; and from 0 to 5% by volume of other aromatics or aliphatic hydrocarbons.