Treatment of waste petroleum

Details Treatment of waste petroleum Treatment of waste petroleum

C - Chemistry, Metallurgy

10

G

C10G 1/00 (2006.01) C10G 1/04 (2006.01) C10G 21/00 (2006.01) C10G 21/02 (2006.01)

Patent

CA 2154155

A treatment of waste petroleum (60, 70) is disclosed by decoupling association of the petroleum component to contaminants by solvent treatment (92, 94) of the petroleum component, followed by ultrasonic treatment (59, 71), separating the contaminants by extraction with a non-solvent (44, 46) for the petroleum and solvent and then separating the petroleum. The washed petroleum is then distilled to remove solvent followed by hydroseparation and centrifugation to isolate the petroleum (67). The solids can be subjected to a hot fluid treatment in a toroidal dynamic bed (50) to free up the petroleum residues in the solid particles.

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