A process for hydrogenating aromatic compounds to produce hydrogenated
cyclic compound by contacting an aromatic compound with hydrogen under
conditions of pressure and temperature to react the hydrogen and aromatic
compound in the presence of a catalyst comprising from 4 to 14 wt. % Ni
and 0.0 up to about 0.9 wt. % Cu deposited on a transition alumina
support having BET surface area of from about 40 to 180 m2/g, and pore
volume of from about 0.3 to about 0.8 cc/g, preferably in the presence of
a solvent boiling at least 10.degree. F. higher than the aromatic
compound and the hydrogenated cyclic compound, such as the hydrogenation
of benzene to produce cyclohexane.