C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 45/14 (2006.01) C10G 47/24 (2006.01)
Patent
CA 2607440
The invention relates to a method for prerefining crude oil P during which P is fractionated into a number of fractions, typically, certain fractions are hydrotreated, hydrocracked or hydroconverted. These fractions are then recomposed, and at least three pre-refined oils Pa, Pb, Pc, are produced, Pc being a residual asphaltenic oil, and Pa and Pb being two non-asphaltenic oils having different R ratios with: R = (0.9 N + 0.5 VGO+) / (MD + 0.1 VGO+), in which: N = naphta [30 °C / 170 °C]; MD = middle distillates: [170 °C / 360 °C] and VGO+ = boiling fraction above 360 °C, and; R translates the relative potential of a non-residual oil into gasoline with regard to the middle distillates during its subsequent refining.
Procédé de pré-raffinage d~un pétrole brut P dans lequel on fractionne P en plusieurs fractions, typiquement on hydrotraite, hydrocraque, ou hydroconvertit certaines d~entre elles, puis l~on recompose ces fractions et l~on produit au moins 3 pétroles pré-raffinés Pa, Pb, Pc, Pc étant un pétrole résiduaire asphalténique, et Pa et Pb étant deux pétroles non asphalténiques ayant des rapports R différents avec : R = (0,9 N + 0,5 VGO+) / (MD + 0,1 VGO+), dans lequel : N = naphta [30~C / 170~C] ; MD = distillats moyens : ]170~C / 360~C] et VGO+ = fraction bouillant au dessus de 360~C. R traduit le potentiel relatif d~un pétrole non résiduaire en essence par rapport aux distillats moyens, lors de son raffinage ultérieur.
Institut Francais Du Petrole
Robic
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