Reduction of CO2 emissions from steel plants by using steelmaking slags for production of marketable calcium carbonate

Sanni Eloneva (Corresponding Author), Sebastian Teir, Hannu Revitzer, Justin Salminen, Said Arsje, Carl-Johan Fogelholm, Ron Zevenhoven

    Research output: Contribution to journalArticleScientificpeer-review

    45 Citations (Scopus)

    Abstract

    By carbon dioxide mineralization, CO2 can be stored safely and leakage-free for very long times. Owing to their high calcium content, steelmaking slags are suitable for mineral carbonation. In a country like Finland, where no suitable geological formations for CO2 storage seem to exist, steelmaking slag carbonation offers an important CO2 emissions reduction option for steel plants. If calcium could be extracted selectively from the slags prior to carbonation, a pure, and possibly marketable, calcium carbonate may be produced. This could replace some of the natural and synthetic CaCO3 used in industry, combining savings in natural resources with CO2 emissions reduction. Development work on the production of pure calcium carbonate from steelmaking slags by carbonation is presented in this study. Selective extraction of calcium from steelmaking slags was investigated using various solvents. Precipitation of CaCO3 from dissolved calcium at atmospheric pressure was also investigated. Amongst the various tested solvents ammonium salt solutions (NH4Cl, CH3COONH4, NH4NO3) were found to be the most promising for selectively extracting calcium from steel converter slag. These solvents dissolved calcium efficiently also from desulphurization slag, while extraction of calcium from two other types of slag was poor. CaCO3 was successfully precipitated from the solution containing ammonium salt and dissolved steel converter slag.
    Original languageEnglish
    Pages (from-to)415-421
    Number of pages7
    JournalSteel Research International
    Volume80
    Issue number6
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Iron and steel plants
    Calcium Carbonate
    calcium carbonates
    slags
    Steelmaking
    Calcium carbonate
    Slags
    steels
    calcium
    Calcium
    Carbonation
    Steel
    Ammonium Compounds
    converters
    Salts
    salts
    Finland
    Precipitation (meteorology)
    Natural resources
    Carbon Dioxide

    Keywords

    • CO2
    • mineral carbonation
    • steelmaking slag
    • CaCO3
    • PCC
    • ammonium salt

    Cite this

    Eloneva, S., Teir, S., Revitzer, H., Salminen, J., Arsje, S., Fogelholm, C-J., & Zevenhoven, R. (2009). Reduction of CO2 emissions from steel plants by using steelmaking slags for production of marketable calcium carbonate. Steel Research International, 80(6), 415-421. https://doi.org/10.2374/SRI09SP028
    Eloneva, Sanni ; Teir, Sebastian ; Revitzer, Hannu ; Salminen, Justin ; Arsje, Said ; Fogelholm, Carl-Johan ; Zevenhoven, Ron. / Reduction of CO2 emissions from steel plants by using steelmaking slags for production of marketable calcium carbonate. In: Steel Research International. 2009 ; Vol. 80, No. 6. pp. 415-421.
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    abstract = "By carbon dioxide mineralization, CO2 can be stored safely and leakage-free for very long times. Owing to their high calcium content, steelmaking slags are suitable for mineral carbonation. In a country like Finland, where no suitable geological formations for CO2 storage seem to exist, steelmaking slag carbonation offers an important CO2 emissions reduction option for steel plants. If calcium could be extracted selectively from the slags prior to carbonation, a pure, and possibly marketable, calcium carbonate may be produced. This could replace some of the natural and synthetic CaCO3 used in industry, combining savings in natural resources with CO2 emissions reduction. Development work on the production of pure calcium carbonate from steelmaking slags by carbonation is presented in this study. Selective extraction of calcium from steelmaking slags was investigated using various solvents. Precipitation of CaCO3 from dissolved calcium at atmospheric pressure was also investigated. Amongst the various tested solvents ammonium salt solutions (NH4Cl, CH3COONH4, NH4NO3) were found to be the most promising for selectively extracting calcium from steel converter slag. These solvents dissolved calcium efficiently also from desulphurization slag, while extraction of calcium from two other types of slag was poor. CaCO3 was successfully precipitated from the solution containing ammonium salt and dissolved steel converter slag.",
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    author = "Sanni Eloneva and Sebastian Teir and Hannu Revitzer and Justin Salminen and Said Arsje and Carl-Johan Fogelholm and Ron Zevenhoven",
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    Eloneva, S, Teir, S, Revitzer, H, Salminen, J, Arsje, S, Fogelholm, C-J & Zevenhoven, R 2009, 'Reduction of CO2 emissions from steel plants by using steelmaking slags for production of marketable calcium carbonate', Steel Research International, vol. 80, no. 6, pp. 415-421. https://doi.org/10.2374/SRI09SP028

    Reduction of CO2 emissions from steel plants by using steelmaking slags for production of marketable calcium carbonate. / Eloneva, Sanni (Corresponding Author); Teir, Sebastian; Revitzer, Hannu; Salminen, Justin; Arsje, Said; Fogelholm, Carl-Johan; Zevenhoven, Ron.

    In: Steel Research International, Vol. 80, No. 6, 2009, p. 415-421.

    Research output: Contribution to journalArticleScientificpeer-review

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    T1 - Reduction of CO2 emissions from steel plants by using steelmaking slags for production of marketable calcium carbonate

    AU - Eloneva, Sanni

    AU - Teir, Sebastian

    AU - Revitzer, Hannu

    AU - Salminen, Justin

    AU - Arsje, Said

    AU - Fogelholm, Carl-Johan

    AU - Zevenhoven, Ron

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    PY - 2009

    Y1 - 2009

    N2 - By carbon dioxide mineralization, CO2 can be stored safely and leakage-free for very long times. Owing to their high calcium content, steelmaking slags are suitable for mineral carbonation. In a country like Finland, where no suitable geological formations for CO2 storage seem to exist, steelmaking slag carbonation offers an important CO2 emissions reduction option for steel plants. If calcium could be extracted selectively from the slags prior to carbonation, a pure, and possibly marketable, calcium carbonate may be produced. This could replace some of the natural and synthetic CaCO3 used in industry, combining savings in natural resources with CO2 emissions reduction. Development work on the production of pure calcium carbonate from steelmaking slags by carbonation is presented in this study. Selective extraction of calcium from steelmaking slags was investigated using various solvents. Precipitation of CaCO3 from dissolved calcium at atmospheric pressure was also investigated. Amongst the various tested solvents ammonium salt solutions (NH4Cl, CH3COONH4, NH4NO3) were found to be the most promising for selectively extracting calcium from steel converter slag. These solvents dissolved calcium efficiently also from desulphurization slag, while extraction of calcium from two other types of slag was poor. CaCO3 was successfully precipitated from the solution containing ammonium salt and dissolved steel converter slag.

    AB - By carbon dioxide mineralization, CO2 can be stored safely and leakage-free for very long times. Owing to their high calcium content, steelmaking slags are suitable for mineral carbonation. In a country like Finland, where no suitable geological formations for CO2 storage seem to exist, steelmaking slag carbonation offers an important CO2 emissions reduction option for steel plants. If calcium could be extracted selectively from the slags prior to carbonation, a pure, and possibly marketable, calcium carbonate may be produced. This could replace some of the natural and synthetic CaCO3 used in industry, combining savings in natural resources with CO2 emissions reduction. Development work on the production of pure calcium carbonate from steelmaking slags by carbonation is presented in this study. Selective extraction of calcium from steelmaking slags was investigated using various solvents. Precipitation of CaCO3 from dissolved calcium at atmospheric pressure was also investigated. Amongst the various tested solvents ammonium salt solutions (NH4Cl, CH3COONH4, NH4NO3) were found to be the most promising for selectively extracting calcium from steel converter slag. These solvents dissolved calcium efficiently also from desulphurization slag, while extraction of calcium from two other types of slag was poor. CaCO3 was successfully precipitated from the solution containing ammonium salt and dissolved steel converter slag.

    KW - CO2

    KW - mineral carbonation

    KW - steelmaking slag

    KW - CaCO3

    KW - PCC

    KW - ammonium salt

    U2 - 10.2374/SRI09SP028

    DO - 10.2374/SRI09SP028

    M3 - Article

    VL - 80

    SP - 415

    EP - 421

    JO - Steel Research International

    JF - Steel Research International

    SN - 1611-3683

    IS - 6

    ER -