Number of the records: 1  

Thermodynamic possibilities of flue gas dry desulfurization, de-HCl, removal of mercury, and zinc compounds in a system with Na2CO3, Ca(OH)2, sulfur, and HBr addition.

  1. 1.
    0504969 - ÚCHP 2020 RIV SK eng C - Conference Paper (international conference)
    Ružovič, Tomáš - Svoboda, Karel - Leitner, J. - Pohořelý, Michael - Hartman, Miloslav
    Thermodynamic possibilities of flue gas dry desulfurization, de-HCl, removal of mercury, and zinc compounds in a system with Na2CO3, Ca(OH)2, sulfur, and HBr addition.
    Proceedings 46th International Conference of the Slovak Society of Chemical Engineering. Bratislava: Slovak Society of Chemical Engineering, 2019 - (Markoš, J.; Mihaľ, M.), s. 1-12. ISBN 978-80-8208-011-0.
    [International Conference of the Slovak Society of Chemical Engneering /46./. Tatranské Matliare (SK), 20.05.2019-23.05.2019]
    R&D Projects: GA MŠk(CZ) EF16_026/0008413
    Institutional support: RVO:67985858
    Keywords : dry flue gas cleaning * mercury removal * thermodynamics
    Subject RIV: CF - Physical ; Theoretical Chemistry
    OBOR OECD: Physical chemistry
    http://hdl.handle.net/11104/0296504

    Thermodynamic studies (analyses)of reactions of HCl, HBr, SO2, NO, elemental sulfur and mercury with solid Na2CO3and Ca(OH)2were performed bytheminimization of Gibbs energy[11-13]for the model systems used. Theoretical equilibrium concentrations of gaseous species and formed solid phases were determined in this way for the temperature range 400 –560 K. For selected reactions, the Gibbs reaction energies have been also computed and compared in the temperature range 400 –600 K to assess their probabilities and preferencesin reactions. The thermodynamic analyses involvedsystems with computations of gas/solid phase composition on the basis of assumption of solid phases with unit activities(stable, basic state). It is evident that the designof lue gas cleaning processes cannotbe based only on theoretical thermodynamic analyses, but we suppose that the data are useful as some limits, applicable and valuable for practice, where the equilibria are not attained due to various reasons(kinetics, insufficient time for reactions, diffusional limitations, changing activities of solid phases, etc.
    Permanent Link: http://hdl.handle.net/11104/0296504
    FileDownloadSizeCommentaryVersionAccess
    SKMBT_C22019052814010.pdf64.2 MBPublisher’s postprintopen-access
     
Number of the records: 1