METHOD OF CLEANING OIL TANK Russian patent published in 1997 - IPC

Abstract RU 2079384 C1

FIELD: oil storage. SUBSTANCE: method includes washing tank interior with organic solvent jets at temperature not lower than 60 C. Organic solvent utilized is α- olefin mixture prepared from polyethylene waste and boiling off in the range from 70 to 435 C. at weight ratio of a-olefins to oil sludge (3-4):1. Invention makes it possible to enhance efficiency of cleaning tank owing to reducing process time by a factor 6-7, to decrease 3-4 times solvent amount, and to repeatedly use the same a-olefin mixture as solvent. Invention may be employed for cleaning stationary and mobile tanks. EFFECT: improved characteristics of cleaning. 1 dwg , 1 tbl

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RU 2 079 384 C1

Authors

Kadyrov M.U.

Krupin S.V.

Bikmukhametov D.Z.

Barabanov V.P.

Rijanov A.M.

Dates

1997-05-20—Published

1995-05-26—Filed