Advances in research on capture of post-combustion carbon dioxide by liquid adsorbents
In recent years,liquid absorbents represented by amine solutions,ammonia solutions,and carbonate solutions have shown great potential as cost-effective,technologically mature,and widely applicable materials for CO2 capture.They possess the advantages of high processing capacity,low cost,technological maturity,and wide application,making them promising candidates for economically efficient,high-performance,green,and sustainable CO2 capture materials.This paper provided a comprehensive review of the current status of CO2 capture using liquid absorbents,including the mechanisms,influencing factors,strategies for enhancing capture performance,and challenges.A comparative analysis of various liquid absorbents was presented,highlighting their advantages and disadvantages in CO2 capture.Furthermore,the future prospects of liquid absorbents were discussed.The analysis revealed that the performance of single liquid absorbents in CO2 capture was relatively poor,and can be improved by employing additives,inhibitors,and mixtures.The energy consumption in the capture process can be reduced by improving the existing process and combining with the new technology,although economic evaluation needed further refinement.Additionally,current research primarily focused on single-component or binary gas mixtures,and future studies should explore the application of liquid absorbents in capturing CO2 from multi-component gas mixtures.
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