Removal of hydrocarbons from particulate solids

Details Removal of hydrocarbons from particulate solids Removal of hydrocarbons from particulate solids

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01) C10C 3/02 (2006.01)

Patent

CA 2578873

A process and composition for removing heavy oil and bitumen from oil sands is disclosed. The composition comprises an emulsion of d-limonene and water, with an anionic surfactant as an emulsifying agent. The emulsion is contacted with an oil sand slurry until the aqueous and hydrocarbon phases separate. The process may take place at temperatures less than about 80~ C.

L'invention concerne un procédé et une composition permettant de supprimer les huiles lourdes et le bitume se trouvant dans des sables bitumeux. La composition selon l'invention comprend une émulsion de d-limonène et d'eau, stabilisée par un agent émulsifiant contenant un tensioactif anionique. L'émulsion est mise en contact avec une boue de sable bitumeux jusqu'à ce que les phases aqueuse et hydrocarbure se séparent. Ce processus peut avoir lieu à des températures inférieures à 80° C.

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