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Semi-Dry Carbonation Process Using Fly Ash from Solid Refused Fuel Power Plant

Author

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  • Jung Hyun Kim

    (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology (KICET), 101 Soho-ro, Jinju-si, Gyeongsangnam-do 52581, Korea)

  • Woo Teck Kwon

    (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology (KICET), 101 Soho-ro, Jinju-si, Gyeongsangnam-do 52581, Korea)

Abstract

The increasing CO 2 concentration in the Earth’s atmosphere, mainly caused by fossil fuel combustion, has led to concerns about global warming. Carbonation is a technique that can be used as a carbon capture and storage (CCS) technology for CO2 sequestration. In this study, the utilization of the fly ash from a solid refused fuel (SRF) power plant as a solid sorbent material for CO 2 capture via semi-dry carbonation reaction was evaluated as a simple process to reduce CO 2 . The fly ash was exposed to accelerated carbonation conditions at a relative humidity of 25, 50, 75, and 100%, to investigate the effects of humidity on the carbonation kinetics of the fly ash. The reaction conditions such as moisture, concentration of CO 2 , and reaction time can affect CO 2 capture performance of fly ash. Due to a short diffusion length of H 2 CO 3 in water, the semi-dry process exhibits faster carbonation reaction than the wet process. Especially, the semi-dry process does not require a wastewater treatment plant because it uses a small amount of water. This study may have important implications, illustrating the possibility of replacing the wet process with the semi-dry process.

Suggested Citation

  • Jung Hyun Kim & Woo Teck Kwon, 2019. "Semi-Dry Carbonation Process Using Fly Ash from Solid Refused Fuel Power Plant," Sustainability, MDPI, vol. 11(3), pages 1-10, February.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:3:p:908-:d:204769
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    References listed on IDEAS

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    1. Shi, Jiewen & Li, Yingjie & Zhang, Qing & Ma, Xiaotong & Duan, Lunbo & Zhou, Xingang, 2017. "CO2 capture performance of a novel synthetic CaO/sepiolite sorbent at calcium looping conditions," Applied Energy, Elsevier, vol. 203(C), pages 412-421.
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    Cited by:

    1. Janusz Zdeb & Natalia Howaniec, 2022. "Energy Sector Derived Combustion Products Utilization—Current Advances in Carbon Dioxide Mineralization," Energies, MDPI, vol. 15(23), pages 1-28, November.
    2. Zdeb, Janusz & Howaniec, Natalia & Smoliński, Adam, 2023. "Experimental study on combined valorization of bituminous coal derived fluidized bed fly ash and carbon dioxide from energy sector," Energy, Elsevier, vol. 265(C).
    3. Ahmed Al-Mansour & Cheuk Lun Chow & Luciano Feo & Rosa Penna & Denvid Lau, 2019. "Green Concrete: By-Products Utilization and Advanced Approaches," Sustainability, MDPI, vol. 11(19), pages 1-30, September.
    4. Paweł Stępień & Małgorzata Serowik & Jacek A. Koziel & Andrzej Białowiec, 2019. "Waste to Carbon: Estimating the Energy Demand for Production of Carbonized Refuse-Derived Fuel," Sustainability, MDPI, vol. 11(20), pages 1-17, October.

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