Method for cleaning tanker cargo tanks

Details Method for cleaning tanker cargo tanks Method for cleaning tanker cargo tanks

1992-04-14

1993-12-28

Pal, Asok

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 221, 134 2218, 134 26, 134 36, B08B 908

Patent

active

052735915

ABSTRACT:
Deposits are removed from cargo tanks of marine crude oil tankers and the like by introducing into the tanks a solvent for the deposits which are formed on the interior surfaces of the tanks, including those surfaces which cannot be reached by crude oil washing machines and the like. The solvent is caused to contact all of the interior surfaces of the tanks by pumping ballast water sequentially into and out of the tanks to cause the solvent to rise and fall in each of the tanks. The method may be carried out during return trips of tankers from the point of discharge of cargo to the point of loading new cargo.

REFERENCES:
patent: 3436263 (1969-04-01), Strenkert et al.
patent: 4770711 (1988-09-01), Deal, III et al.

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