Detergent composition for petroleum refining apparatus

C - Chemistry – Metallurgy – 23 – G

Patent

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Details

C23G 5/032 (2006.01) C11D 1/00 (2006.01) C11D 3/18 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2375638

A detergent composition for petroleum refining apparatuses which is to be mixed with a petroleum solvent when the inside of a petroleum refining apparatus is cleansed with the solvent in the absence of water, characterized by containing a surfactant which has a solubility in gas oil at 25~C of 10 or higher. By using the detergent composition together with a petroleum solvent, the petroleum solvent rapidly penetrates into fouling ingredients to produce a sufficient cleansing effect. As a result, the cleansing efficiency can be significantly improved and the time required for cleansing the inside of a petroleum refining apparatus can be considerably shortened.

L'invention concerne une composition détergente utilisée dans des appareils de raffinage du pétrole, cette composition étant destinée à être mélangée avec un solvant à base de pétrole lorsque l'on nettoie l'intérieur d'un appareil de raffinage du pétrole à l'aide de ce solvant mais sans eau. Cette composition renferme un tensioactif dont la solubilité dans le gasoil à 25 ·C est supérieure ou égale à 10. Grâce à l'utilisation combinée de cette composition détergente et du solvant à base de pétrole, ce dernier pénètre rapidement dans les ingrédients susceptibles de provoquer un encrassement, ce qui produit un effet nettoyant suffisant. Le nettoyage peut ainsi être largement plus efficace et le laps de temps nécessaire pour nettoyer l'intérieur d'un appareil de raffinage du pétrole considérablement réduit.

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