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Absorption and Desorption Heat of Carbon Dioxide Capture Based on 2-Amino-2-Methyl-1-Propanol

Author

Listed:
  • Jia Guo

    (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
    The Ground Engineering Test Base High Efficient Separation Technology Laboratory and Shandong Provincial Key Laboratory of Oil, Gas and New Energy Storage and Transportation Safety, Qingdao 266580, China)

  • Xin Wang

    (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
    The Ground Engineering Test Base High Efficient Separation Technology Laboratory and Shandong Provincial Key Laboratory of Oil, Gas and New Energy Storage and Transportation Safety, Qingdao 266580, China)

  • Yi Li

    (Sinopec Petroleum Engineering Corporation, Dongying 257061, China)

  • Qingfang Li

    (Sinopec Petroleum Engineering Corporation, Dongying 257061, China)

  • Haili Liu

    (Sinopec Petroleum Engineering Corporation, Dongying 257061, China)

  • Hui Wang

    (Sinopec Petroleum Engineering Corporation, Dongying 257061, China)

Abstract

In chemical absorption for carbon capture, the regeneration heat is a key factor determining solvent regeneration energy consumption, and the sterically hindered amine 2-amino-2-methyl-1-propanol (AMP) has great potential for application. In this paper, a CO 2 reaction heat measurement system designed and constructed by our team was used to perform a comparative study on AMP and monoethanolamine (MEA). Moreover, five additives—MEA, diglycolamine (DGA), diethanolamine (DEA), methyldiethanolamine (MDEA), and piperazine (PZ)—were introduced into AMP-based solutions to investigate the promotion performance of these blended solvents. The results revealed that although AMP exhibited a slower absorption rate compared to MEA, it demonstrated a higher CO 2 loading capacity and cyclic capacity, as well as a lower reaction heat, making it advantageous in terms of regeneration energy consumption. At the same total concentration, the absorption capacity of blended solutions (excluding AMP-MEA solutions) was generally lower than that of single-component AMP solutions. Among these additives, MEA and PZ could enhance the absorption rate clearly yet increase the reaction heat at the same time; DGA and DEA could decrease the overall absorption performance. Generally, AMP-MDEA solutions showed the best desorption performance, with the 15 wt% AMP + 5 wt% MDEA mixture demonstrating the lowest regeneration heat and good cyclic capacity.

Suggested Citation

  • Jia Guo & Xin Wang & Yi Li & Qingfang Li & Haili Liu & Hui Wang, 2025. "Absorption and Desorption Heat of Carbon Dioxide Capture Based on 2-Amino-2-Methyl-1-Propanol," Energies, MDPI, vol. 18(5), pages 1-29, February.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:5:p:1075-:d:1597519
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    References listed on IDEAS

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