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

Teknologier för en hållbar framtid

Forskningsoutput: Kapitel i bok/konferenshandling › Kapitel › Vetenskaplig › Peer review

1 Citeringar (Scopus)

547 Nedladdningar (Pure)

Sammanfattning

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.

Originalspråk	Odefinierat/okänt
Titel på värdpublikation	Materials Processing Fundamentals 2019
Redaktörer	Guillaume Lambotte, Jonghyn Lee, Antoine Allanore, Samuel Wagstaff
Förlag	Springer
Sidor	227–240
ISBN (elektroniskt)	978-3-030-05728-2
ISBN (tryckt)	978-3-030-05727-5
DOI	https://doi.org/10.1007/978-3-030-05728-2_21
Status	Publicerad - 2019
MoE-publikationstyp	A3 Del av bok eller annan forskningsbok

Nyckelord

Metallurgical Thermodynamics and Modelling
Sulfates
Thermodynamic equilibrium calculations
slagging and fouling

Åtkomst av dokument

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

Manuscript_132715 FeO_190220.pdfAccepterat manuskript från författare, 771 KBLicens: Publisher rights policy

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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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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. red. / Guillaume Lambotte; Jonghyn Lee; Antoine Allanore; Samuel Wagstaff. Springer, 2019. s. 227–240.

Forskningsoutput: Kapitel i bok/konferenshandling › Kapitel › Vetenskaplig › Peer review

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AU - Lindberg, Daniel

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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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