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Epoxide-functionalization of polyethyleneimine for synthesis of stable carbon dioxide adsorbent in temperature swing adsorption

Author

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  • Woosung Choi

    (Korea Advanced Institute of Science and Technology)

  • Kyungmin Min

    (Korea Advanced Institute of Science and Technology)

  • Chaehoon Kim

    (Korea Advanced Institute of Science and Technology)

  • Young Soo Ko

    (Kongju National University)

  • Jae Wan Jeon

    (Kongju National University)

  • Hwimin Seo

    (Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology)

  • Yong-Ki Park

    (Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology)

  • Minkee Choi

    (Korea Advanced Institute of Science and Technology)

Abstract

Amine-containing adsorbents have been extensively investigated for post-combustion carbon dioxide capture due to their ability to chemisorb low-concentration carbon dioxide from a wet flue gas. However, earlier studies have focused primarily on the carbon dioxide uptake of adsorbents, and have not demonstrated effective adsorbent regeneration and long-term stability under such conditions. Here, we report the versatile and scalable synthesis of a functionalized-polyethyleneimine (PEI)/silica adsorbent which simultaneously exhibits a large working capacity (2.2 mmol g−1) and long-term stability in a practical temperature swing adsorption process (regeneration under 100% carbon dioxide at 120 °C), enabling the separation of concentrated carbon dioxide. We demonstrate that the functionalization of PEI with 1,2-epoxybutane reduces the heat of adsorption and facilitates carbon dioxide desorption (>99%) during regeneration compared with unmodified PEI (76%). Moreover, the functionalization significantly improves long-term adsorbent stability over repeated temperature swing adsorption cycles due to the suppression of urea formation and oxidative amine degradation.

Suggested Citation

  • Woosung Choi & Kyungmin Min & Chaehoon Kim & Young Soo Ko & Jae Wan Jeon & Hwimin Seo & Yong-Ki Park & Minkee Choi, 2016. "Epoxide-functionalization of polyethyleneimine for synthesis of stable carbon dioxide adsorbent in temperature swing adsorption," Nature Communications, Nature, vol. 7(1), pages 1-8, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12640
    DOI: 10.1038/ncomms12640
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    Cited by:

    1. Xin Sun & Xuehua Shen & Hao Wang & Feng Yan & Jiali Hua & Guanghuan Li & Zuotai Zhang, 2024. "Atom-level interaction design between amines and support for achieving efficient and stable CO2 capture," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Jung, Wonho & Park, Junhyung & Won, Wangyun & Lee, Kwang Soon, 2018. "Simulated moving bed adsorption process based on a polyethylenimine-silica sorbent for CO2 capture with sensible heat recovery," Energy, Elsevier, vol. 150(C), pages 950-964.
    3. Jung, Wonho & Lee, Kwang Soon, 2019. "Novel short-cut estimation method for the optimum total energy demand of solid sorbents in an adsorption-based CO2 capture process," Energy, Elsevier, vol. 180(C), pages 640-648.
    4. Yang, Chuanruo & Du, Zhilin & Jin, Junsu & Chen, Jian & Mi, Jianguo, 2020. "Epoxide-functionalized tetraethylenepentamine encapsulated into porous copolymer spheres for CO2 capture with superior stability," Applied Energy, Elsevier, vol. 260(C).
    5. Jung, Wonho & Lee, Jinwon, 2022. "Economic evaluation for four different solid sorbent processes with heat integration for energy-efficient CO2 capture based on PEI-silica sorbent," Energy, Elsevier, vol. 238(PC).
    6. 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.
    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. An, Xuefei & Li, Tongxin & Chen, Jiaqi & Fu, Dong, 2023. "3D-hierarchical porous functionalized carbon aerogel from renewable cellulose: An innovative solid-amine adsorbent with high CO2 adsorption performance," Energy, Elsevier, vol. 274(C).

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