REFINERY SLUDGE PROCESSING METHOD Russian patent published in 2005 - IPC

Abstract RU 2244732 C2

FIELD: petroleum processing and petrochemistry.

SUBSTANCE: method comprises heating refinery sludge to 45-85^оС, mixing it with neutralization agents: alkali or alkali-earth metal oxides and/or carbonates supported by carbon black characterized by agglomeration of particles within the range 0.03-0.09. Neutralization is carried out at 45-85^оС for 4-10 min to obtain neutral product. Heating of refinery sludge is provided by chemical-recovery products: anthracene oil, anthracene fraction, pitch distillate.

EFFECT: increased resistance of carbon black granules to caking and to decrease in angle of natural slope.

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RU 2 244 732 C2

Authors

Gorjunov G.L.

Pomerantsev I.P.

Nikolaev A.N.

Dates

2005-01-20—Published

2003-03-24—Filed