Process for the selective conversion of naphtha to aromatics and olefins

Claim 1

A staged process for the selective conversion of C 6 + naphtha hydrocarbon feedstream containing n-paraffins and naphthenes to C 6 + aromatics and light olefins with a reduced production of C 3 - paraffins, comprising: contacting said feedstream in an aromatization reaction zone with nonacidic zeolite catalyst particles containing metal from Group VIII of the Periodic Chart of the Elements under aromatization reaction conditions whereby a high selective conversion of said n-paraffins to said aromatics is achieved and said first reaction zone effluent is rich in unconverted naphthenes; passing said effluent without separation to a naphthenes cracking zone in contact with cracking catalyst comprising acidic zeolite catalyst particles under cracking conditions whereby conversion of said naphthenes to light olefins is achieve while said C 3 - paraffins production is reduced; and separating effluent from said cracking zone by distillation to recover an overhead stream comprising hydrogen and C 5 - olefinic hydrocarbons and a bottom stream comprising C 6 + hydrocarbons rich in aromatics.