Robust Enhancement of Direct Air Capture of CO2 Efficiency Using Micro-Sized Anion Exchange Resin Particles
-
Published:2024-04-25
Issue:9
Volume:16
Page:3601
-
ISSN:2071-1050
-
Container-title:Sustainability
-
language:en
-
Short-container-title:Sustainability
Author:
Liu Shuohan1, Hu Junqiang2, Zhang Fan2ORCID, Zhu Jianzhong3, Shi Xiaoyang456ORCID, Wang Lei1
Affiliation:
1. National Laboratory of Solid-State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, China 2. Hexquare Technology Co., Ltd., Beijing 100089, China 3. State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China 4. Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, USA 5. Lenfest Center for Sustainable Energy, The Earth Institute, Columbia University, New York, NY 10027, USA 6. Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
Abstract
In the quest to mitigate carbon dioxide emissions, it becomes essential to address the existing atmospheric CO2. Effective and economical methodologies, particularly those without additional energy consumption, are crucial. Currently, a leading method is the direct capture of CO2 using ion exchange resins, which achieve the adsorption and desorption of carbon dioxide simply by using the humidity variations. This technology, though minimizing additional energy cost, still needs improvement in its efficiency in CO2 capture capacity and compared to other methods. In this work, we develop low-cost techniques to reduce the AmberLite™ IRA900 Cl (IRA-900) anion exchange resin to micro size, and observe significant performance enhancement on CO2 capture efficiency contingent on reducing the particle diameters. This performance disparity is attributed to the differential water adsorption capacities inherent in particles of diverse diameters. Our results reveal that smaller resin particles outperform their larger counterparts, exhibiting accelerated adsorption rates and expedited transitions from wet to dry states. Notably, these smaller particles display a quintupled enhancement in adsorption efficacy relative to non-treated particles and a marked increase in relative adsorption capacity. Upon treatment, IRA-900 demonstrates robust CO2 processing efficiency, achieving a peak adsorption rate of 1.28 g/mol·h and a maximum desorption rate of 1.18 g/mol·h. Also, the material is subjected to almost 100 cycles of testing, and even after 100 cycles, the resin particles maintain a capacity of 100%. Moreover, our material can be fully regenerated to 100% efficiency by simply immersing it in water. Simultaneously, storing it in water allows for the long-term maintenance of its performance without other treatment methods. A key observation is the resin’s sustained performance stability post extended exposure to humid conditions. These outcomes offer substantial practical implications, emphasizing the relevance of our study in practical environmental applications.
Funder
National Key Projects for Research and Development of China National Natural Science Foundation of China Natural Science Foundation of Jiangsu Province
Reference45 articles.
1. Pachauri, R.K., Allen, M.R., Barros, V.R., Broome, J., Cramer, W., Christ, R., Church, J.A., Clarke, L., Dahe, Q., and Dasgupta, P. (2014). Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, IPCC. 2. CO2 absorption over ion exchange resins: The effect of amine functional groups and microporous structures;Wang;Ind. Eng. Chem. Res.,2020 3. Xu, J., Shi, X., Li, Q., Wang, T., and Lackner, K.S. (2017). Kinetic analysis of an anion exchange absorbent for CO2 capture from ambient air. PLoS ONE, 12. 4. Solomon, S. (2007). Climate Change 2007-the Physical Science Basis: Working Group I Contribution to the Fourth Assessment Report of the IPCC, Cambridge University Press. 5. The urgency of the development of CO2 capture from ambient air;Lackner;Proc. Natl. Acad. Sci. USA,2012
|
|