Method for producing low-sulphur petrol

Details Method for producing low-sulphur petrol Method for producing low-sulphur petrol

C - Chemistry, Metallurgy

10

G

C10G 69/12 (2006.01) C10G 29/20 (2006.01) C10G 45/32 (2006.01) C10G 65/00 (2006.01) C10G 65/06 (2006.01) C10G 67/06 (2006.01) C10G 67/08 (2006.01) C10G 69/00 (2006.01) C10G 69/08 (2006.01)

Patent

CA 2440188

The invention relates to a method for producing low-sulphur petrol comprising at least one sulphur compound transformation step consisting of the alkylation or adsorption of the sulphur compounds and/or in increasing the weight of the light sulphur compounds; at least one step involving treatment in the presence of an acid catalyst; and at least one step consisting in desulphurising at least one part of the petrol. According to the invention, the method can also optionally comprise at least one step involving the selective hydrogenation of diolefins and, optionally, at least one fractionation of the petrol obtained into at least two fractions: light petrol and heavy petrol.

L'invention concerne un procédé de production d'essence à faible teneur en soufre comprenant au moins une étape de transformation des composés soufrés et/ou en un alourdissement des composés soufrés légers, au moins une étape de traitement en présence d'un catalyseur acide et au moins un traitement de désulfuration d'au moins une partie de l'essence. Le procédé selon l'invention peut également comprendre éventuellement au moins une étape d'hydrogénation sélective des dioléfines et éventuellement au moins un fractionnemenet de l'essence obtenue en au moins deux fractions : essence légère et essence lourde.

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