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Parametric behavior of a CO2 capture process: CFD simulation of solid-sorbent CO2 absorption in a riser reactor

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  • Breault, Ronald W.
  • Huckaby, E. David

Abstract

The National Energy Technology Laboratory as well as other institutions are developing a variety of technology concepts as alternatives to liquid-amine based absorption processes for post-combustion CO2 capture from large sources such as utility power generation facilities. At low temperature, many of these advanced dry processes are based upon sorbents composed of supported polyamines. In the dry-sorbent process, CO2 from flue gas is absorbed in one reactor, followed by separation of the carbonated particles from the de-carbonated flue gas and in a second reactor the sorbent is regenerated, creating a concentrated stream of pure CO2 for sequestration. In this work, the adsorber performance is simulated using multiphase computational fluid dynamics with chemistry and heat transfer. The three-dimension geometry is based on the lower mixing section of a riser from a recently operated CO2 capture test unit. An eight point test matrix was used to explore the behavior and performance of the riser adsorber with respect to solids circulation rate, gas flow rate and heat removal. It is shown that CO2 adsorption increases with an increase in the solids flow, decreases for an increase in the gas flow. The reactor performance can be summarized as a function of the molar sorbent to CO2 ratio entering the reactor with an R2 value of 0.9985.

Suggested Citation

  • Breault, Ronald W. & Huckaby, E. David, 2013. "Parametric behavior of a CO2 capture process: CFD simulation of solid-sorbent CO2 absorption in a riser reactor," Applied Energy, Elsevier, vol. 112(C), pages 224-234.
  • Handle: RePEc:eee:appene:v:112:y:2013:i:c:p:224-234
    DOI: 10.1016/j.apenergy.2013.06.008
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    Cited by:

    1. Breault, Ronald W. & Monazam, Esmail R., 2015. "Fixed bed reduction of hematite under alternating reduction and oxidation cycles," Applied Energy, Elsevier, vol. 145(C), pages 180-190.
    2. Park, Junhyung & Won, Wangyun & Jung, Wonho & Lee, Kwang Soon, 2019. "One-dimensional modeling of a turbulent fluidized bed for a sorbent-based CO2 capture process with solid–solid sensible heat exchange," Energy, Elsevier, vol. 168(C), pages 1168-1180.
    3. Liu, Xingrang & Bansal, R.C., 2014. "Integrating multi-objective optimization with computational fluid dynamics to optimize boiler combustion process of a coal fired power plant," Applied Energy, Elsevier, vol. 130(C), pages 658-669.
    4. Xu, Yin & Jin, Baosheng & Zhao, Yongling & Hu, Eric J. & Chen, Xiaole & Li, Xiaochuan, 2018. "Numerical simulation of aqueous ammonia-based CO2 absorption in a sprayer tower: An integrated model combining gas-liquid hydrodynamics and chemistry," Applied Energy, Elsevier, vol. 211(C), pages 318-333.
    5. Luis Míguez, José & Porteiro, Jacobo & Pérez-Orozco, Raquel & Patiño, David & Rodríguez, Sandra, 2018. "Evolution of CO2 capture technology between 2007 and 2017 through the study of patent activity," Applied Energy, Elsevier, vol. 211(C), pages 1282-1296.
    6. Thummakul, Theeranan & Gidaspow, Dimitri & Piumsomboon, Pornpote & Chalermsinsuwan, Benjapon, 2017. "CFD simulation of CO2 sorption on K2CO3 solid sorbent in novel high flux circulating-turbulent fluidized bed riser: Parametric statistical experimental design study," Applied Energy, Elsevier, vol. 190(C), pages 122-134.
    7. Jung, Wonho & Lee, Jinwon, 2022. "Pseudo counter-current turbulent fluidized bed process with sensible heat recovery for energy-efficient CO2 capture using an amine-functionalized solid sorbent," Energy, Elsevier, vol. 240(C).
    8. Zhao, Bingtao & Su, Yaxin & Tao, Wenwen, 2014. "Mass transfer performance of CO2 capture in rotating packed bed: Dimensionless modeling and intelligent prediction," Applied Energy, Elsevier, vol. 136(C), pages 132-142.
    9. Shakerian, Farid & Kim, Ki-Hyun & Szulejko, Jan E. & Park, Jae-Woo, 2015. "A comparative review between amines and ammonia as sorptive media for post-combustion CO2 capture," Applied Energy, Elsevier, vol. 148(C), pages 10-22.
    10. Yang, Yan & Wen, Chuang & Wang, Shuli & Feng, Yuqing, 2014. "Theoretical and numerical analysis on pressure recovery of supersonic separators for natural gas dehydration," Applied Energy, Elsevier, vol. 132(C), pages 248-253.
    11. Wan, Zhanghao & Yang, Shiliang & Wei, Yonggang & Hu, Jianhang & Wang, Hua, 2020. "CFD modeling of the flow dynamics and gasification in the combustor and gasifier of a dual fluidized bed pilot plant," Energy, Elsevier, vol. 198(C).

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    Keywords

    CO2 adsorption; Parametric behavior; CFD simulation;
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