Procedure for the desulfurization of gasoline involving...

Details Procedure for the desulfurization of gasoline involving... Procedure for the desulfurization of gasoline involving...

C - Chemistry, Metallurgy

10

G

C10G 65/06 (2006.01) C10G 65/00 (2006.01) C10G 69/00 (2006.01)

Patent

CA 2342131

The invention relates to a process of producing gasoline with a low sulphur content from a feedstock containing sulphur. This process comprises at least one step a1 of selectively hydrogenating the diolefins and acetylenic compounds, at least one separation of the gasoline (step b) obtained at step a1 into at least three fractions, at least one step c1 of treating the heavy gasoline separated at step b on a catalyst enabling the unsaturated sulphur compounds to be at least partially decomposed or hydrogenated and at least one step d to remove the sulphur and nitrogen from at least one intermediate fraction, followed by catalytic reforming.

L'invention concerne un procédé de production d'essence à faible teneur en soufre, à partir d'une charge contement du soufre. Ce procédé comprend au moins une étape a1 d'hydrogénation sélective des dioléfines et des composés acétylèniques, au moins une séparation de l'essence (étape b) obtenue à l'étape a1 en au moins trois fractions, au moins une étape c1 de traitement de l'essence lourde séparée à l'étape b sur un catalyseur permettant de décomposer ou d'hydrogéner au moins partiellement les composés soufrés insaturés, et au moins une étape d de désulfuration et déazotation d'au moins une fraction intermédiaire, suivie d'un reformage catalytique.

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