Method of removing contaminants from petroleum distillates

Details Method of removing contaminants from petroleum distillates Method of removing contaminants from petroleum distillates

C - Chemistry, Metallurgy

10

G

C10G 75/00 (2006.01) C07C 7/12 (2006.01) C10G 21/16 (2006.01) C10G 25/06 (2006.01) C10G 29/20 (2006.01) C10G 29/22 (2006.01) C10M 175/00 (2006.01)

Patent

CA 2367207

Polynuclear aromatic hydrocarbons (PAHs) and other contaminants are removed from petroleum distillates by mixing a solvent (22) with petroleum distillate (12) to extract the contaminants therefrom. The solvent is recovered and distilled to separate the contaminants (52) therefrom, and is then reused. The petroleum distillate having the contaminants separated therefrom is also distilled to remove any remaining solvent (96) therefrom, with the recovered solvent being reused.

L'invention se rapporte à un procédé permettant d'extraire des hydrocarbures aromatiques polynucléaires (PAH) et d'autres contaminants de distillats de pétrole et consistant à mélanger un solvant (22) à un distillat de pétrole (12) de manière à en extraire les contaminants. Le solvant est récupéré et distillé de manière à en extraire les contaminants (52), puis est réutilisé. Le distillat de pétrole duquel on a extrait les contaminants est également distillé de manière à en retirer tout reste de solvant (96), le solvant récupéré étant réutilisé.

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