Modification schemes of efficient sorbents for trace CO2 capture

Chen Zhang, Xinqi Zhang, Tingyu Su, Yiheng Zhang, Liwei Wang and Xuancan Zhu

Renewable and Sustainable Energy Reviews, 2023, vol. 184, issue C

Abstract: Carbon dioxide (CO2) capture technology that could coordinate the contradiction between the CO2 emissions and industrial development and alleviate the climate crisis has been conducted in-depth exploration. However, it is still hard to find a raw CO2 sorbent working efficiently for trace CO2 capture (TCC). This review aims to provide insights for the mechanisms, performances, and commercial analysis for various modification schemes of sorbents for TCC. Five modification schemes, namely, acid/alkali/salt treatment, inert supports, functional groups, nanomaterials, and multi-phase sorbents, are comprehensively assessed, and the features of different schemes are tabulated to provide guidance for sorption performance enhancement. Furthermore, the commercial assessments for TCC materials are conducted according to a multivariable model for the development of materials and applications. The future burgeon of sorption performance enhancement schemes for low-concentration capture of CO2 is proposed from the standpoint of sorbents and their modification schemes.

Keywords: Carbon dioxide; Trace CO2 capture; Sorption mechanism; Sorption materials; Sorption performance; Sorbent modification (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1016/j.rser.2023.113473

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