Oxidative desulfurization of sulfur-containing hydrocarbons

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 7/00 (2006.01) C07C 7/148 (2006.01) C10G 27/00 (2006.01) C10G 27/04 (2006.01) C10G 27/12 (2006.01)

Patent

CA 2470079

A method for desulfurizing a hydrocarbon stream (10) containing heterocyclic sulfur compounds, which process comprises contacting the heterocyclic sulfur compounds in the gas phase (60) in the presence of oxygen (70) with a supported metal oxide catalyst, or with a bulk metal oxide catalyst (600) to convert at least a portion of the heterocyclic sulfur compounds to oxygenated products as well as sulfur-deficient hydrocarbons and separately recovering the oxygenated products separately from a hydrocarbon stream with substantially reduced sulfur.

L'invention concerne un procédé pour la désulfuration d'un flux d'hydrocarbures (10) contenant des composés soufrés hétérocycliques. Le procédé selon l'invention comprend la mise en contact des composés soufrés hétérocycliques dans la phase gazeuse (60), en présence d'oxygène (70), avec un catalyseur supporté à base d'oxyde métallique ou avec un catalyseur massique (600) à base d'oxyde métallique afin de transformer au moins une partie des composés soufrés hétérocycliques en produits oxygénés ainsi qu'en hydrocarbures déficitaires en soufre, puis la récupération des produits oxygénés séparément d'un flux d'hydrocarbures particulièrement réduit en soufre.

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