Gas hold-up in stirred tank reactors in the presence of inorganic electrolytes

Archis A. Yawalkar, Albertus B.M. Heesink, Geert Versteeg, Vishwas G. Pangarkar

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    Gas hold-up (εG) in air-aqueous electrolyte solutions in stirred tank reactors (STR) is correlated using a relative gas dispersion parameter, N/Ncd and a surface tension factor (STF), (c/z)(dδ/dc)2. For electrolyte concentration below transition concentration (ct) a single correlation in the form of εG = f(N/Ncd, vvm, STF) shows good agreement with gas hold-up data over a wide range of system and operating conditions. Above ct no effect of STF on gas hold-up is observed and the correlation obtained is of the form εG = f(N/Ncd, vvm). Data available in the literature on large STR show good fit with the proposed correlation.
    Original languageUndefined
    Pages (from-to)791-799
    JournalCanadian journal of chemical engineering
    Issue number5
    Publication statusPublished - 2003


    • IR-71829
    • Gas hold-up
    • STF
    • STR
    • Electrolyte
    • METIS-217431
    • relative dispersion (N/Ncd)

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