Apparatus and process for reclaiming fuel oil from waste oil

Details Apparatus and process for reclaiming fuel oil from waste oil Apparatus and process for reclaiming fuel oil from waste oil

C - Chemistry, Metallurgy

10

M

C10M 175/00 (2006.01)

Patent

CA 2225635

Disclosed is an apparatus and a process for reclaiming fuel oil from waste oil. The apparatus comprises a thermal cracking unit for cracking the high boiling hydrocarbon material into lighter, lower boiling material so as to separate hydrocarbon vapor products from viscous materials; a condenser/heat exchanger for condensing the hydrocarbon vapor products to the liquid state; a fuel stabilization unit for chemically treating the condensates so as to give an oil product and solid sediment; and a polishing unit for forming a high quality fuel oil by physically removing solid contaminants. According to the present invention, high quality fuel oil can be obtained together with an environmentally innocuous solid ash cake, through a simple and efficient process.

Cette invention porte sur un procédé et un système de récupération de mazout à partir d'huile usagée. Le système comprend une unité de craquage thermique servant à transformer le matériau hydrocarbure à haut point d'ébullition en un matériau plus léger à plus faible point d'ébullition, afin de séparer des produits de vapeur d'hydrocarbures de matières visqueuses. Le système comprend aussi un condensateur/échangeur de chaleur servant à condenser les produits de vapeur d'hydrocarbures sous forme liquide, une unité de stabilisation du combustible permettant de traiter chimiquement les condensats pour obtenir un carburant et un dépôt solide. Le système comprend en outre un poste de polissage servant à fabriquer un mazout de haute qualité par élimination physique de contaminants solides. Le procédé de l'invention, simple et efficace, permet d'obtenir un mazout de haute qualité en même temps qu'un gâteau de cendres solide sans danger pour l'environnement.

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