Aqueous dispersions of heavy oil residues

C - Chemistry – Metallurgy – 10 – L

Patent

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C10L 1/32 (2006.01)

Patent

CA 2438974

A description follows of an aqueous dispersion of heavy oil residues, suitable for undergoing combustion with a low emission of SOx, comprising: (a) a heavy oil residue; (b) a dispersing agent; (c) a desulfurizing agent selected from CaCO3, MgCO3, dolomite and relative mixtures; (d) a desulfurizing agent with stabilizing and anti-corrosive properties selected from MgO, Mg(OH)2, CaO, Ca(OH)2 adn relative mixtures; (e) water; the weight percentage of (e) with respect ot the sum of (a) + (e) being at least 15 %.

L'invention concerne une dispersion aqueuse de résidus d'hydrocarbures lourds conçue pour être soumise à une combustion avec une faible émission de SO¿x?. Cette dispersion comprend: (a) un résidu d'hydrocarbure lourd; (b) un agent de dispersion; (c) un agent de désulfuration sélectionné dans CaCO¿3?, MgCO¿3?, une dolomie et des mélanges relatifs; (d) un agent de désulfuration présentant des propriétés de stabilisation et d'anti-corrosion sélectionné dans MgO, Mg(OH)¿2?, CaO, Ca(OH)¿2? et des mélanges relatifs; (e) de l'eau; le pourcentage pondéral (e) par rapport à la somme de (a) + (e) étant d'au moins 15 %.

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