A process for removing essentially naphthenic acids from a...

Details A process for removing essentially naphthenic acids from a... A process for removing essentially naphthenic acids from a...

C - Chemistry, Metallurgy

10

G

C10G 45/08 (2006.01)

Patent

CA 2198623

A process for removing essentially naphthenic acids from a crude oil which has not previously been fractionated by distillation, or from which only a naphtha fraction has been distilled. The crude oil is hydrogenated at 1-50 bars and 100-300 ·C over a catalyst of the kind used for hydrogenation of atmopsheric residue oils. As a catalyst, especially Ni-Mo or Ni-Co deposited on alumina as a carrier material is used.

L'invention concerne un procédé pour éliminer essentiellement des acides naphténiques d'une huile minérale brute qui n'a pas été fractionnée auparavant par distillation, ou d'une huile minérale que l'on a débarrassée uniquement de sa fraction kérosène par distillation. L'huile en question est hydrogénée à 1-50 bars et à 100-300 ~C sur un catalyseur du type utilisé pour hydrogéner les huiles résiduelles obtenues après distillation sous pression atmosphérique. On utilise plus particulièrement comme catalyseur du Ni-Mo ou du Ni-Co déposé sur de l'alumine servant de support.

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