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Experimental Analysis of Reaction Heat of CO 2 Absorption of Phase Change Absorber AEP-DPA at Low Partial Pressure

Author

Listed:
  • Shijian Lu

    (Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
    China Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
    School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China)

  • Fei Yang

    (Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
    China Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
    School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China)

  • Juanjuan Zhang

    (Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
    China Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
    School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China)

  • Ning Wang

    (Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
    China Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
    School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China)

  • Ling Liu

    (Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
    China Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
    School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China)

  • Guojun Kang

    (Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
    China Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
    School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221008, China)

  • Dongya Zhao

    (New Energy College, China University of Petroleum (East China), Qingdao 266580, China)

  • Xulin Yu

    (Sinopec Petroleum Engineering Corporation, Dongying 257061, China)

  • Qingfang Li

    (Sinopec Petroleum Engineering Corporation, Dongying 257061, China)

Abstract

The reaction heat of CO 2 absorption by organic amines is directly related to the regenerative heat consumption of absorbers. Therefore, it is necessary to study and determine the heat of absorption reaction and heat of regeneration reaction of CO 2 capture solvent before its industrial validation and application. According to the law of thermodynamics, a computer model of the heat of absorption reaction and desorption reaction is established and verified. The heat of reaction of the AEP-DPA phase transition absorption system was studied under different ratios, absorption temperatures, reaction concentrations and reaction pressures. The heat of reaction increases with concentration and decreases with pressure. The reaction heat of the AEP-DPA phase transition absorption system and MEA were compared. The optimum reaction conditions were as follows: AEP-DPA ratio 6:4, absorption temperature 40 °C. The reduction rate of absorption heat and regenerative heat of the AEP-DPA phase change absorption system is more than 35% and 31%, respectively.

Suggested Citation

  • Shijian Lu & Fei Yang & Juanjuan Zhang & Ning Wang & Ling Liu & Guojun Kang & Dongya Zhao & Xulin Yu & Qingfang Li, 2023. "Experimental Analysis of Reaction Heat of CO 2 Absorption of Phase Change Absorber AEP-DPA at Low Partial Pressure," Energies, MDPI, vol. 16(4), pages 1-14, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1867-:d:1067518
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