The authors describe the circumstances leading to the use of crude oil washing as standard procedure on VLCCs as a means of reducing the time spent water washing tanks for clean ballast. This led to greatly reduced quantities of retained oil on board as part of the load-on-top operation and eliminated the problems of sludge build up in tanks. Crude oil washing was adopted in 1978 by the Tanker Safety and Pollution Prevention Conference as an alternative to segregated ballast tanks in existing tankers. This preserved deadweight capacity and although the back-fitting of complete crude oil washing and inert gas systems will cost at least 1M pounds sterling per ship, it is still an attractive alternative. The authors discuss generation of electrostatic charges and tank atmosphere control, the impact of the TSPP crude oil washing specifications and operational procedures. They conclude that even these regulations will be of no avail unless staff are trained and dedicated to safe tanker practice. Order from BSRA as No. 54,782.

  • Supplemental Notes:
    • Presented at the Institute of Marine Engineers' Meeting, London, October 14, 1980.
  • Corporate Authors:

    Institute of Marine Engineers

    Memorial Building, 76 Mark Lane
    London EC3R 7JN,   England 
  • Authors:
    • Barker, WDJ
    • Allsop, T W
  • Publication Date: 1980-10-14

Media Info

  • Features: References;
  • Pagination: 9 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00330009
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Report/Paper Numbers: Paper No. 3
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM