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

Shijian Lu (), Fei Yang (), Juanjuan Zhang, Ning Wang, Ling Liu (), Guojun Kang (), Dongya Zhao (), Xulin Yu and Qingfang Li
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Shijian Lu: Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, 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
Juanjuan Zhang: Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, 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
Ling Liu: Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, 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
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

Energies, 2023, vol. 16, issue 4, 1-14

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.

Keywords: CO 2; phase change absorbent; reaction heat; absorption; regeneration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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