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    Efficacy of bisulfite ions as an oxygen scavenger in monoethylene glycol (at least 20 wt%)/water mixtures

    Access Status
    Fulltext not available
    Authors
    Salasi, Mobin
    Pojtanabuntoeng, Kod
    Wong, S.
    Lehmann, M.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Salasi, M. and Pojtanabuntoeng, K. and Wong, S. and Lehmann, M. 2017. Efficacy of bisulfite ions as an oxygen scavenger in monoethylene glycol (at least 20 wt%)/water mixtures. SPE Journal. 22 (5): pp. 1467-1477.
    Source Title
    SPE Journal
    ISSN
    1086-055X
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/58959
    Collection
    • Curtin Research Publications
    Abstract

    Copyright © 2017 Society of Petroleum Engineers. This study investigates the oxygen-scavenging behavior of bisulfite ions in monoethylene glycol (MEG)/water mixtures at concentrations commonly found in gas-transportation pipelines. Temperatures and pH values were varied. The influence of transition-metal (TM) ions to catalyze the bisulfite oxygen scavenging was studied. Experimental results indicate that MEG significantly inhibits bisulfite oxygen removal, which is hindered at low pH values and, to some extent, temperature. TMs can accelerate the oxygen-scavenging reaction in pH-unadjusted solutions, although the rate was still lower than that of the pH-adjusted solutions. The possible mechanism for such behavior and industrial implications are discussed.

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