Methods and apparatuses for obtaining a heavy oil product from a mixture

Methodes et appareils permettant d'obtenir un produit de petrole lourd a partir d'un melange

Abstract

Methods and apparatus for obtaining a heavy oil product from a mixture of a first solvent and heavy oil. If the heavy oil product is to contain asphaltenes, the method includes forming a treated mixture by treating the mixture to prevent substantial precipitation of heavy end components; and producing a recovered solvent and the heavy oil product by separating a portion of the solvent from the treated mixture. If the heavy oil product is to have a lower quantity of asphaltenes than the asphaltenes in the mixture, the method includes forming a treated mixture containing asphaltenes by treating the mixture to cause precipitation of asphaltenes; providing separated asphaltenes and a separated treated mixture by separating the asphaltenes from the treated mixture; and producing a recovered solvent and the heavy oil product by separating a portion of the solvent from the separated treated mixture.

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