Thermochemical Data of Selected Phases in the FeO x –FeSO 4 –Fe 2 (SO 4 ) 3 System

Fiseha Tesfaye*, In Ho Jung, Min Kyu Paek, Mykola Moroz, Daniel Lindberg, Leena Hupa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

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Several recent studies have shown the potential of oxy-fuel combustion to reduce NO x (gas) and SO 2 (gas) emissions. However, the mechanisms through which SO 2 (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 SO 2 (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 FeO x –FeSO 4 –Fe 2 (SO 4 ) 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 C p functions, which include the recent experimental data, were optimized. The obtained results are presented and discussed.

Original languageEnglish
Title of host publicationMaterials Processing Fundamentals, 2019
EditorsAntoine Allanore, Guillaume Lambotte, Samuel Wagstaff, Jonghyun Lee
Number of pages14
Publication statusPublished - 10 Feb 2019
MoE publication typeA3 Part of a book or another research book
EventMaterials Processing Fundamentals Symposium - San Antonio, United States
Duration: 10 Mar 201914 Mar 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696


ConferenceMaterials Processing Fundamentals Symposium
Country/TerritoryUnited States
CitySan Antonio


  • Decomposition reaction
  • Sulfate
  • Sulfur dioxide
  • Thermochemical data


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