(19)
(11) EP 0 132 197 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.07.1985 Bulletin 1985/28

(43) Date of publication A2:
23.01.1985 Bulletin 1985/04

(21) Application number: 84401462

(22) Date of filing: 10.07.1984
(84) Designated Contracting States:
BE DE FR GB IT NL SE

(30) Priority: 11.07.1983 US 512489

(71) Applicant: Petroleum Fermentations N.V.
 ()

(72) Inventors:
  • Williams, Joseph L.
     ()
  • Sansing, John W.
     ()
  • Hayes, Michael E.
     ()
  • Deal, James F.
     ()

   


(54) Process and apparatus for cleaning an oil contaminated vessel


(57) An apparatus and process adapted to clean oil contaminated vessels (1) which uses a closed fluidized system (10) through which fluidized sludge is recirculated to be sprayed under pressure on interior walls of the vessel. Emulsifying agents are added to the vessel to initially form a pool of fluidized sludge in the vessel which is then conveyed to a tank and from the tank conveyed to a high pressure spray where it is sprayed onto the walls to fluidize more sludge.






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