Method for producing petrol having a low sulphur content

Details Method for producing petrol having a low sulphur content Method for producing petrol having a low sulphur content

C - Chemistry, Metallurgy

10

G

C10G 69/12 (2006.01) C10G 45/32 (2006.01) C10G 65/06 (2006.01)

Patent

CA 2440180

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.

L'invention concerne un procédé de production d'essence à faible teneur en soufre comprenant au moins une hydrogénation sélective des dioléfines, éventuellement au moins une étape de transformation, de préférence d'alourdissement, des composés soufrés légers présents dans l'essence, au moins un fractionnement de l'essence obtenue en au moins deux fractions : essence légère et essence lourde, puis éventuellement une étape de transformation, de préférence d'alkylation ou d'adsorption des composés soufrés et un traitement de désulfuration en une étape d'au moins une partie de la fraction lourde.

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