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Adsorption of CO2 with Thermally Activated Serpentine: Experimental and CFD Simulations in a Fixed-bed Reactor.

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Title: Adsorption of CO2 with Thermally Activated Serpentine: Experimental and CFD Simulations in a Fixed-bed Reactor.
Authors: Reza, Alvan Ade1 alvan_ar@mhs.unsyiah.ac.id, Mahidin, Mahidin2 mahidin@usk.ac.id, Yunardi, Yunardi2, Gani, Asri2, Wardani, Sari3
Source: ASEAN Journal of Chemical Engineering. 2026, Vol. 26 Issue 1, p183-194. 12p.
Subjects: Carbon dioxide adsorption, Fixed bed reactors, Carbonation (Chemistry), Sorbents, Chemical kinetics, Physisorption, Computational fluid dynamics, Gas absorption & adsorption
Abstract: Thermally activated serpentine, abundant in Mg-silicate, shows potential for CO2 extraction using mineral carbonation. This study aims to evaluate the performance of thermally activated serpentine for CO2 capture in a fixed-bed reactor by combining breakthrough experiments with CFD simulations. The serpentine was thermally activated at 750 ℃ for 1.5 hours. CO2 adsorption using three gas flow rates (0.1, 0.5, and 1.0 SLPM) with two variations of adsorbent mass (15 g and 30 g). The results show that the thermal activation of serpentine surface area, microporosity, and Mg content, thereby significantly enhancing the material's capacity and adsorption rate. The breakthrough curve shows that at a flow rate of 0.1 SLPM, the CO2 capture capacity is 2.81 mg/g, while a at 0.5 SLPM, it provides a good balance between adsorption rate and capacity. Conversely, at 1.0 SLPM, the process is limited by transport, resulting in a steeper, faster breakthrough curve. Kinetic modeling revealed that the Clark and Yoon-Nelson models were better suited to describing the experimental data than Thomas model (R² > 0.99). The integrated experimental and simulation approach provides a strong quantitative basis for predictive design and scale-up of fixed-bed reactors for CO2 capture. Overall, thermally activated serpentine has proven to be an effective sorbent for CO2 capture in gas-solid systems, and the validated CFD model provides valuable insights for more efficient reactor design and optimization of operational conditions at an industrial scale. [ABSTRACT FROM AUTHOR]
Copyright of ASEAN Journal of Chemical Engineering is the property of Gadjah Mada University, Faculty of Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Adsorption of CO<subscript>2</subscript> with Thermally Activated Serpentine: Experimental and CFD Simulations in a Fixed-bed Reactor.
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  Data: <searchLink fieldCode="JN" term="%22ASEAN+Journal+of+Chemical+Engineering%22">ASEAN Journal of Chemical Engineering</searchLink>. 2026, Vol. 26 Issue 1, p183-194. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Carbon+dioxide+adsorption%22">Carbon dioxide adsorption</searchLink><br /><searchLink fieldCode="DE" term="%22Fixed+bed+reactors%22">Fixed bed reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Carbonation+%28Chemistry%29%22">Carbonation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Sorbents%22">Sorbents</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+kinetics%22">Chemical kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Physisorption%22">Physisorption</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+absorption+%26+adsorption%22">Gas absorption & adsorption</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Thermally activated serpentine, abundant in Mg-silicate, shows potential for CO2 extraction using mineral carbonation. This study aims to evaluate the performance of thermally activated serpentine for CO2 capture in a fixed-bed reactor by combining breakthrough experiments with CFD simulations. The serpentine was thermally activated at 750 ℃ for 1.5 hours. CO2 adsorption using three gas flow rates (0.1, 0.5, and 1.0 SLPM) with two variations of adsorbent mass (15 g and 30 g). The results show that the thermal activation of serpentine surface area, microporosity, and Mg content, thereby significantly enhancing the material's capacity and adsorption rate. The breakthrough curve shows that at a flow rate of 0.1 SLPM, the CO2 capture capacity is 2.81 mg/g, while a at 0.5 SLPM, it provides a good balance between adsorption rate and capacity. Conversely, at 1.0 SLPM, the process is limited by transport, resulting in a steeper, faster breakthrough curve. Kinetic modeling revealed that the Clark and Yoon-Nelson models were better suited to describing the experimental data than Thomas model (R² > 0.99). The integrated experimental and simulation approach provides a strong quantitative basis for predictive design and scale-up of fixed-bed reactors for CO2 capture. Overall, thermally activated serpentine has proven to be an effective sorbent for CO2 capture in gas-solid systems, and the validated CFD model provides valuable insights for more efficient reactor design and optimization of operational conditions at an industrial scale. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of ASEAN Journal of Chemical Engineering is the property of Gadjah Mada University, Faculty of Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.22146/ajche.24963
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 183
    Subjects:
      – SubjectFull: Carbon dioxide adsorption
        Type: general
      – SubjectFull: Fixed bed reactors
        Type: general
      – SubjectFull: Carbonation (Chemistry)
        Type: general
      – SubjectFull: Sorbents
        Type: general
      – SubjectFull: Chemical kinetics
        Type: general
      – SubjectFull: Physisorption
        Type: general
      – SubjectFull: Computational fluid dynamics
        Type: general
      – SubjectFull: Gas absorption & adsorption
        Type: general
    Titles:
      – TitleFull: Adsorption of CO2 with Thermally Activated Serpentine: Experimental and CFD Simulations in a Fixed-bed Reactor.
        Type: main
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            NameFull: Reza, Alvan Ade
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            NameFull: Mahidin, Mahidin
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            NameFull: Yunardi, Yunardi
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            NameFull: Gani, Asri
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            – D: 01
              M: 01
              Text: 2026
              Type: published
              Y: 2026
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              Value: 26
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