State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology
Shanxi-Zheda Institute ofAdvanced Materials and Chemical Engineering

The CO2 emission caused by fossil fuel combustion is one of the important reasons for global warming and extremeweather. At present, fossil fuel is still the primary energy in China and CO2 emission remains high. The use of lowcostand energy-efficient CO2 capture methods can effectively alleviate the occurrence of above situation. Compared withthe alcohol amine solution absorption method, the adsorption method has the advantages of low energy consumption, lessdamage to the equipment and excellent cycle stability, etc. However, the adsorption materials usually involve a complexpreparation process and the cost is high. Therefore, it is urgent to find a kind of new adsorption material with low cost andexcellent CO2 adsorption performance to achieve an efficient CO2 capture. In this study, the properties of ideal porous adsorptionmaterials are introduced, the influence of other gases such as water vapor and SO2 in the flue gas on the CO2 adsorption performance of porous materials, and the ways to improve the CO2 adsorption performance of porous materialsare mainly discussed. Porous materials have the advantages of large specific surface area, and adjustable pore size, etc.,among which the silicon-based mesoporous materials and activated carbon have low prices, and the MOFs materials havevarious functions. These characteristics make porous materials widely used in the field of CO2 capture. However, it isworth noting that the molecular sieves and silicon-based mesoporous materials are highly sensitive to water vapor. TheMOFs materials are less affected by water vapor than the molecular sieves, but their adsorption capacity is relatively lowunder low pressure and their preparation cost is relatively high. Activated carbon materials also have disadvantages such aslow adsorption capacity. Therefore, various porous materials need to be constantly modified to improve their adsorptionperformance, and most of the modification methods of porous materials focus on pore structure regulation and surfacemodification. Future research needs to further explore the internal mechanism of CO2 adsorption by porous materials andthe synergistic regulation of surface modification and pore structure.

山西浙大新材料与化工研究院研发资助项目(2021SX-FR002)；中央高校基本科研业务费专项资金资助项目(2022ZFJH004)

赵泽敏，高慧敏，屈婷，等. 多孔材料捕集烟道气中二氧化碳研究进展[J]. 煤炭学报，2023，48(4)：1715−1726

ZHAO Zemin，GAO Huimin，QU Ting，et al. Research progress on porous materials for capturing carbon dioxide from flue gas[J]. Journal of China Coal Society，2023，48(4)：1715−1726