Abstract: Post-combustion CO₂ capture is of paramount importance in CO₂ capture and storage technology.As a common post-combustion method,solid adsorbents possess advantage of low energy consumption,low corrosion,and favorable regenerability as well as simple devices.It exerts great influence in the realization of CO₂-reduction targets.The key of using adsorption method to eliminate the CO₂ concentration is that the research & development of adsorbent with large adsorption capacity,high selectivity,and lower energy consumption.This paper focuses on recent research progress of carbon-based adsorbents,zeolites,metal-oxide,amino-adsorbents,and metal-organic frameworks(MOFs).We mainly elaborate the physical and chemical properties and enumerate CO₂ adsorption properties in practice,existing problems and the improvement measures of these adsorbents.Besides,this paper emphases on the application prospect of metal-organic frameworks in the flue gas.It is shown that MOFs are promising adsorbents due to its high specific area,large pore volume,high porosity,structure tunability.In order to improve the CO₂ adsorption properties of MOFs,four modification methods are summarized in this paper.It extends idea for the worker who will engaged in research and development of CO₂ adsorbents.

Key words: carbon dioxide, adsorbents, adsorption, separation, flue gas

摘要： 采用吸附法降低电厂烟道气中CO₂浓度，关键在于吸附容量大、选择性高、再生能耗低的吸附剂的开发。本文综述了炭基吸附剂、分子筛、金属氧化物、氨基吸附剂以及金属有机骨架材料5种主要的CO₂固体吸附剂最新的研究进展，具体阐述了这几种吸附剂的物理和化学性质，列举了这些吸附剂在燃烧后捕获CO₂应用过程中的吸附性能、存在的问题以及改进的措施。重点探讨了金属-有机骨架材料作为烟气气氛下CO₂吸附剂的应用前景，这种吸附剂具有比表面积大、孔容大、孔隙率高、结构可调等优点，分析表明这是一种极具潜力的CO₂吸附剂。为提高其在烟气环境下的CO₂吸附性能，作者概括总结了4种主要的改性措施，为从事这个领域的工作者扩展了思路。

关键词: 二氧化碳, 吸附剂, 吸附(作用), 分离, 烟道气