Hydrogenation, fractionation, a method for including a conversion step and desulfurization of the sulfur-containing compounds, to produce a gasoline of low sulfur content

摘要

The invention relates to a method for producing petrol having a low sulphur content comprising at least one selective hydrogenation of diolefins, optionally at least one transformation stage, preferably an increase stage, of light sulphur compounds present in petrol, at least one fractioning of the petrol obtained into at least two fractions, light petrol and heavy petrol, then an optional transformation stage, preferably alkylation or adsorption of sulphur compounds and a one-stage desulphurization treatment of at least one part of the heavy fraction.