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

Fiseha Tesfaye; In-Ho Jung; Min-Kyu Paek; Mykola Moroz; Daniel Lindberg; Leena Hupa

doi:10.1007/978-3-030-05728-2_21

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

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

Technologies for a Sustainable Future

Research output: Chapter in Book/Conference proceeding › Chapter › Scientific › peer-review

1 Citation (Scopus)

742 Downloads (Pure)

Abstract

Several recent studies have shown the potential of oxy-fuel combustion to reduce NO_x(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 FeO_x–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 C_p functions, which include the recent experimental data, were optimized. The obtained results are presented and discussed.

Original language	Undefined/Unknown
Title of host publication	Materials Processing Fundamentals 2019
Editors	Guillaume Lambotte, Jonghyn Lee, Antoine Allanore, Samuel Wagstaff
Publisher	Springer
Pages	227–240
ISBN (Electronic)	978-3-030-05728-2
ISBN (Print)	978-3-030-05727-5
DOIs	https://doi.org/10.1007/978-3-030-05728-2_21
Publication status	Published - 2019
MoE publication type	A3 Part of a book or another research book

Keywords

Metallurgical Thermodynamics and Modelling
Sulfates
Thermodynamic equilibrium calculations
slagging and fouling

Access to Document

10.1007/978-3-030-05728-2_21

Manuscript_132715 FeO_190220.pdfAccepted author manuscript, 771 KBLicence: Publisher rights policy

Cite this

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

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.",

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author = "Fiseha Tesfaye and In-Ho Jung and Min-Kyu Paek and Mykola Moroz and Daniel Lindberg and Leena Hupa",

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Thermochemical Data of Selected Phases in the FeOx–FeSO4–Fe2(SO4)3 System. / Tesfaye, Fiseha; Jung, In-Ho; Paek, Min-Kyu et al.
Materials Processing Fundamentals 2019. ed. / Guillaume Lambotte; Jonghyn Lee; Antoine Allanore; Samuel Wagstaff. Springer, 2019. p. 227–240.

Research output: Chapter in Book/Conference proceeding › Chapter › Scientific › peer-review

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AU - Tesfaye, Fiseha

AU - Jung, In-Ho

AU - Paek, Min-Kyu

AU - Moroz, Mykola

AU - Lindberg, Daniel

AU - Hupa, Leena

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AB - 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.

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KW - Thermodynamic equilibrium calculations

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