Thermochemical Data of Selected Phases in the FeOx–FeSO4–Fe2(SO4)3 System

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Internal Authors/Editors


Publication Details

List of Authors: Fiseha Tesfaye, In-Ho Jung, Min-Kyu Paek, Mykola Moroz, Daniel Lindberg, Leena Hupa
Editors: Guillaume Lambotte, Jonghyn Lee, Antoine Allanore, Samuel R. Wagstaff
Publication year: 2019
Publisher: Springer
Book title: Materials Processing Fundamentals 2019
Title of series: The Minerals, Metals & Materials Series
Start page: I
End page: 214
ISBN: 978-3-030-05727-5
eISBN: 978-3-030-05728-2
ISSN: 2367-1181


Abstract

Several recent studies have shown the potential of oxy-fuel combustion to reduce NOx(gas) and SO2(gas) emissions. However, the mechanisms through which SO2(gas) reduction takes place has yet to be fully understood. Therefore, the development of oxy-sulfate thermodynamic database for a better understanding and control of SO2(gas) emission during oxy-fuel combustion processes is essential. The focus of this research is on the thermodynamic modelling of the iron oxide–sulfate system with the FactSage 7.2 software package. Thermodynamic properties of selected phases in the FeOx–FeSO4–Fe2(SO4)3 system were critically reviewed, compiled and assessed over a wide temperature range (298–2000 K) to obtain accurate thermodynamic description of the system at different temperatures. New Cp functions, which include the recent experimental data, were optimized. The obtained results are presented and discussed.


Keywords

Metallurgical Thermodynamics and Modelling, slagging and fouling, Sulfates, Thermodynamic equilibrium calculations

Last updated on 2019-22-10 at 04:11