Patent ID: 7156980

Claim:
A process for the hydrodesulfuration of hydrocarbon mixtures having boiling ranges within the naphtha range of about 35° to about 250° C., containing olefins and at least 150 ppm of sulfur, with the contemporaneous skeleton isomerization of these olefins, which comprises putting these mixtures in contact, in the presence of hydrogen, at a pressure ranging from 5 to 20 kg/cm 2 , at a WHSV ranging from 1 to 10 h −1 , with a quantity of hydrogen ranging from 100 to 500 times the quantity of hydrocarbons present (Nl/l), at a temperature ranging from 220 to 360° C. with a catalytic composition comprising a beta zeolite, a metal of group VIII, and a metal of group VI B.