Homogeneous catalyst bed and process of transforming hydrocarbons into aromatic compounds with the bed

摘要

For transforming hydrocarbons into aromatic compounds, the reaction is conducted on a homogeneous bed of catalyst particles, said catalyst comprising at least one amorphous matrix, at least one noble metal, at least two additional metals M1 and M2 and at least one halogen, and in which, for a catalyst particle, Cpt is the local concentration of platinum; CM1 is the local concentration of additional metal M1; CM2 is the local concentration of additional metal M2; in which the standard deviation of the distribution of the local ratios of the concentrations of the additional metals, CM1/CM2, measured along the particle diameter, is better than 25% relative.