Fixation of CO2 by carbonating calcium derived from blast furnace slag

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

    Research output: Contribution to journalArticleScientificpeer-review

    116 Citations (Scopus)

    Abstract

    Industrial waste materials, such as steelmaking slags, appear to be potential raw materials for reducing CO2 emissions by carbonation. The suitability of applying a carbonation route based on acetic acid leaching to produce carbonates from blast furnace slag is presented in this study. The effect of solution pH, temperature, and CO2 pressure on the precipitation of carbonates was experimentally studied. A simple thermodynamic model was used to verify our results. The feasibility of the process was also discussed, addressing energy input requirements and the consumption of chemicals. According to our experiments, the addition of NaOH, i.e. an increase in solution pH, is required for the adequate precipitation of calcium carbonate at temperatures of 30–70 °C and pressures of 1 or 30 bar. Preliminary process calculations showed that approximately 4.4 kg of blast furnace slag, 3.6 l of acetic acid, and 3.5 kg of NaOH would be required to bind 1 kg of CO2, resulting in 2.5 kg of 90% calcium carbonate. While the heat needed for the evaporation of the acetic acid could probably be acquired as waste heat by process integration with other processes, the electricity required for NaOH regeneration would make the process unsuitable for CO2 sequestration.

    Original languageEnglish
    Pages (from-to)1461-1467
    Number of pages7
    JournalEnergy
    Volume33
    Issue number9
    DOIs
    Publication statusPublished - 2008
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Acetic acid
    Slags
    Calcium
    Carbonation
    Calcium carbonate
    Carbonates
    Industrial wastes
    Waste heat
    Steelmaking
    Leaching
    Raw materials
    Evaporation
    Electricity
    Thermodynamics
    Temperature
    Experiments
    Hot Temperature

    Keywords

    • mineral carbonation
    • calcium carbonate
    • carbon dioxide
    • acetid acid
    • steelmaking slag

    Cite this

    Eloneva, S., Teir, S., Salminen, J., Fogelholm, C-J., & Zevenhoven, R. (2008). Fixation of CO2 by carbonating calcium derived from blast furnace slag. Energy, 33(9), 1461-1467. https://doi.org/10.1016/j.energy.2008.05.003
    Eloneva, Sanni ; Teir, Sebastian ; Salminen, Justin ; Fogelholm, Carl-Johan ; Zevenhoven, Ron. / Fixation of CO2 by carbonating calcium derived from blast furnace slag. In: Energy. 2008 ; Vol. 33, No. 9. pp. 1461-1467.
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    abstract = "Industrial waste materials, such as steelmaking slags, appear to be potential raw materials for reducing CO2 emissions by carbonation. The suitability of applying a carbonation route based on acetic acid leaching to produce carbonates from blast furnace slag is presented in this study. The effect of solution pH, temperature, and CO2 pressure on the precipitation of carbonates was experimentally studied. A simple thermodynamic model was used to verify our results. The feasibility of the process was also discussed, addressing energy input requirements and the consumption of chemicals. According to our experiments, the addition of NaOH, i.e. an increase in solution pH, is required for the adequate precipitation of calcium carbonate at temperatures of 30–70 °C and pressures of 1 or 30 bar. Preliminary process calculations showed that approximately 4.4 kg of blast furnace slag, 3.6 l of acetic acid, and 3.5 kg of NaOH would be required to bind 1 kg of CO2, resulting in 2.5 kg of 90{\%} calcium carbonate. While the heat needed for the evaporation of the acetic acid could probably be acquired as waste heat by process integration with other processes, the electricity required for NaOH regeneration would make the process unsuitable for CO2 sequestration.",
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    author = "Sanni Eloneva and Sebastian Teir and Justin Salminen and Carl-Johan Fogelholm and Ron Zevenhoven",
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    Eloneva, S, Teir, S, Salminen, J, Fogelholm, C-J & Zevenhoven, R 2008, 'Fixation of CO2 by carbonating calcium derived from blast furnace slag', Energy, vol. 33, no. 9, pp. 1461-1467. https://doi.org/10.1016/j.energy.2008.05.003

    Fixation of CO2 by carbonating calcium derived from blast furnace slag. / Eloneva, Sanni (Corresponding Author); Teir, Sebastian; Salminen, Justin; Fogelholm, Carl-Johan; Zevenhoven, Ron.

    In: Energy, Vol. 33, No. 9, 2008, p. 1461-1467.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

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    AU - Eloneva, Sanni

    AU - Teir, Sebastian

    AU - Salminen, Justin

    AU - Fogelholm, Carl-Johan

    AU - Zevenhoven, Ron

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    AB - Industrial waste materials, such as steelmaking slags, appear to be potential raw materials for reducing CO2 emissions by carbonation. The suitability of applying a carbonation route based on acetic acid leaching to produce carbonates from blast furnace slag is presented in this study. The effect of solution pH, temperature, and CO2 pressure on the precipitation of carbonates was experimentally studied. A simple thermodynamic model was used to verify our results. The feasibility of the process was also discussed, addressing energy input requirements and the consumption of chemicals. According to our experiments, the addition of NaOH, i.e. an increase in solution pH, is required for the adequate precipitation of calcium carbonate at temperatures of 30–70 °C and pressures of 1 or 30 bar. Preliminary process calculations showed that approximately 4.4 kg of blast furnace slag, 3.6 l of acetic acid, and 3.5 kg of NaOH would be required to bind 1 kg of CO2, resulting in 2.5 kg of 90% calcium carbonate. While the heat needed for the evaporation of the acetic acid could probably be acquired as waste heat by process integration with other processes, the electricity required for NaOH regeneration would make the process unsuitable for CO2 sequestration.

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    Eloneva S, Teir S, Salminen J, Fogelholm C-J, Zevenhoven R. Fixation of CO2 by carbonating calcium derived from blast furnace slag. Energy. 2008;33(9):1461-1467. https://doi.org/10.1016/j.energy.2008.05.003