| abstract |
Selective hydrogenation process of a gasoline cut in the presence of a supported sulfide catalyst prepared by at least one cyclic oligosaccharide. The present invention relates to a selective one-gasoline hydrogenation process containing polyunsaturated hydrocarbons having at least 2 carbon atoms per molecule and having a final boiling point of less than or equal to 250Â ° C, consisting of in contacting this gasoline cut with at least one catalyser whose active phase comprises at least one group viii metal and at least one group vib metal deposited on a support, said catalyst being prepared by a process comprising at least (i) a step in contacting at least one solution with at least one precursor of at least that group viii metal and at least one precursor of at least this group vi b metal; ii) a laying step of at least such a support with at least one organic compound formed of at least one cyclic oligosaccharide composed of at least 6 glycopyranose subunits at <244> - (1,4), iii) a calcination step for obtain at least this group viii metal and at least this group vib metal in oxide form, then iv) a sulfuration step, so that this active phase is in sulfide form, steps i) and ii) can be performed separately, in a different order, or simultaneously. |