INFLUENCE OF INERT GAS OBTAINED FROM BOILER FLUE GASES ON CORROSION IN CARGO TANKS AND CARGO-OIL SYSTEMS

The Authors, of Berlin Technical University, give an account of an experimental investigation on the rate of corrosion of two shipbuilding steels, one ordinary and the other higher-strength, under laboratory conditions, simulating those in cargo-oil tanks, still containing some seawater, whose gas spaces have been inerted with scrubbed boiler-flue gases. The investigation was done for the FDS, the German shipbuilding research centre in Hamburg. The experimental procedures and the results are discussed. It was found that the two steels showed a comparable rate of corrosion; this was so whether or not the specimens contained welded seams. Corrosion rate rose with sulphur dioxide and oxygen content of the gas space, and remained approximately constant with time during the six weeks' observation. Particularly when oxygen content was low, iron sulphide appeared with the iron oxides as a corrosion product. Because of the strong influence of SO sub 2 content on corrosion rate, the effect of scrubbing the flue gases was also investigated, and several recommendations are made. Order from: BSRA as No. 47,847.

  • Corporate Authors:

    Schroedter (C) and Company

    Stubbenhuk 10
    Hamburg 11,   Germany 
  • Authors:
    • Grossmann, G
    • Gestrich, W
  • Publication Date: 1977-10

Language

  • German

Media Info

  • Features: References;
  • Pagination: 4 p.
  • Serial:
    • HANSA
    • Volume: 114
    • Issue Number: 20
    • Publisher: Deutsche Bahn AG

Subject/Index Terms

Filing Info

  • Accession Number: 00173730
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Apr 26 1978 12:00AM