Absorption of NO2 into aqueous (NH4)2SO3 solution in a stirred tank reactor

Authors

  • Rui-Tang Guo,

    Corresponding author
    1. Shanghai Power Generation Environment Protection Research Center, Shanghai, People's Republic of China
    • School of Energy Source and Environmental Engineering, Shanghai University of Electric Power, Shanghai, People's Republic of China
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  • Wei-Guo Pan,

    1. School of Energy Source and Environmental Engineering, Shanghai University of Electric Power, Shanghai, People's Republic of China
    2. Shanghai Power Generation Environment Protection Research Center, Shanghai, People's Republic of China
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  • Xiao-Bo Zhang,

    1. School of Energy Source and Environmental Engineering, Shanghai University of Electric Power, Shanghai, People's Republic of China
    2. Shanghai Power Generation Environment Protection Research Center, Shanghai, People's Republic of China
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  • Jian-Xing Ren,

    1. School of Energy Source and Environmental Engineering, Shanghai University of Electric Power, Shanghai, People's Republic of China
    2. Shanghai Power Generation Environment Protection Research Center, Shanghai, People's Republic of China
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  • Qiang Jin,

    1. Shanghai Power Generation Environment Protection Research Center, Shanghai, People's Republic of China
    2. SEC-IHI Power Generation Environment Protection Engineering Co. Ltd., Shanghai, People's Republic of China
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  • Hong-Jian Xu

    1. School of Energy Source and Environmental Engineering, Shanghai University of Electric Power, Shanghai, People's Republic of China
    2. Shanghai Power Generation Environment Protection Research Center, Shanghai, People's Republic of China
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grta@zju.edu.cn (for correspondence)

Abstract

Absorption experiments of NO2 from simulated flue gas into aqueous (NH4)2SO3 solution were performed in a stirred tank reactor under atmosphere pressure. As can be seen from the experimental results, the absorption rate of NO2 into (NH4)2SO3 solution increases as the (NH4)2SO3 concentration increases from 0.01 to 0.06 mol/L. As the concentration of (NH4)2SO3 solution exceeds 0.06 mol/L, the absorption process becomes gas-film controlled. And the absorption rate increases with increasing NO2 inlet concentration but decreases with increasing reaction temperature. Compared with Na2SO3 solution, (NH4)2SO3 solution has higher NO2 absorption rate. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 465–469, 2013

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