A literature study and analysis was made concerning the potential hazard of pyrophoric ignition of flammable vapors in oil tankers with inert gas systems (IGS). Only two pyrophor possibilities seem to be likely: Formation of ferrous sulfide (FeS) and/or ferrous oxide (FeO). Both FeS and FeO may be formed in an oxygen limited atmosphere, such as would be the case with a flue gas IGS. Formation of FeS also requires an atmosphere containing hydrogen sulfide (H2S), as would be the conditon with 'sour' crudes, so that the hazard of the formation of pyrophoric FeS must be considered for such crudes. Furthermore, if sea water is present in the oil tank, oils which do not contain H2S can become 'sour' by the action of sulfate reducing bacteria on sulfates in the water. It is concluded that in the event of failure of an IGS system, the ullage space should not be exposed to air suddenly. (Seifert)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Can pyrophoric materials form in oil tankers with inert gas fire protection system


    Weitere Titelangaben:

    Koennen sich in Tankern mit Inertgas-Brandschutzanlagen luftentzuendliche Stoffe bilden?


    Beteiligte:
    Affens, W.A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1977


    Format / Umfang :

    14 Seiten


    Medientyp :

    Report


    Format :

    Print


    Sprache :

    Englisch




    Fire protection for tankers

    Morrell, R.W. | Engineering Index Backfile | 1926


    Device for dispensing pyrophoric particulate materials

    MILLS KENDALL / PLAZA CLINTON / PATINO JUAN et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Inert gas fire protection system

    FOSTER FRANK J | Europäisches Patentamt | 2022

    Freier Zugriff

    Inert Gas Fire Protection System

    FOSTER FRANK J | Europäisches Patentamt | 2020

    Freier Zugriff

    World's largest tankers go all-out for fire protection

    Myers, J.H. | Engineering Index Backfile | 1951