Patent ID: 7723554
Filing Date: 2010-05-25
Classification: C10G

Abstract:
1. A process for the catalytic hydrodealkylation alone of hydrocarbon compositions comprising one or more C 8 -C 13 alkylaromatic compounds, optionally in a mixture with C 4 -C 9 aliphatic and cycloaliphatic products, including the processing in continuous of said hydrocarbon compositions, in the presence of water, with a catalyst consisting of a ZSM-5 zeolite having a molar ratio Si/Al ranging from 5 to 35, modified with at least one metal selected from the group consisting of a metal of group IIB, a metal of group VIB and a metal of group VIII, at a temperature ranging from 400 to 700° C., a pressure of between 2 and 4 MPa, and a molar ratio between H 2 O/charge ranging from 3 to 6.