Environmental Impact Evaluation of CO 2 Absorption and Desorption Enhancement by Membrane Gas Absorption: A Life Cycle Assessment Study

Fuzhao Li, Yuexia Lv (), Jinpeng Bi (), Hui Zhang, Wei Zhao, Yancai Su, Tingting Du and Junkun Mu
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Fuzhao Li: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
Yuexia Lv: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
Jinpeng Bi: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
Hui Zhang: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
Wei Zhao: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
Yancai Su: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
Tingting Du: School of Energy and Power Engineering, Shandong University, Jinan 250061, China
Junkun Mu: School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China

Energies, 2024, vol. 17, issue 10, 1-17

Abstract: Membrane gas absorption technology has been considered a promising approach to mitigate CO 2 emissions from power plants. The aim of this study is to evaluate the environmental impacts of CO 2 absorption and desorption processes by hollow fiber membrane contactors using a life cycle assessment methodology. On the basis of the ReCipe 2016 Midpoint and the ReCipe 2016 Endpoint methods, the research results show that membrane gas absorption systems exhibit the lowest environmental impacts across the majority of assessed categories in comparison with chemical absorption and membrane gas separation systems. The CO 2 capture process via membrane gas absorption has the most significant impact on the METP category, with heat consumption as the primary contributing factor accounting for 55%, followed by electricity consumption accounting for 43.1%. According to the sensitivity analysis, heating by natural gas shows better performance than other heat supply sources in improving overall environmental impacts. In addition, the increasing utilization of renewable energy in electricity supply reduces the global warming potential, fossil resource consumption and ozone formation.

Keywords: CO 2 capture; membrane gas absorption; life cycle assessment; environmental impact (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: 2024
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