Ionic liquids display good CO₂ absorption capacity but poor absorption kinetics and high costs. In the present work, we show that these problems can be solved by impregnating the new low cost ionic liquid pentaethylenehexammonium chloride [PEHA][Cl] and the corresponding amine precursor on a low cost mesoporous microsphere support. Nitrogen adsorption/ desorption, high-resolution SEM and thermogravimetric analysis were employed to analyze the structural and thermal properties of the prepared sorbents. The CO₂ adsorption and desorption performance was studied by column experiments and mathematical models were fitted to the data. The results showed that sorbents displayed excellent sorption kinetics and capacity, comparable to the best reports in the literature. In addition, the sorbents could be regenerated and displayed high thermal stability. Finally, the costs of the sorbents developed in the present work is much lower than previously reported sorbents. Therefore this novel supported IL system could be promising for industrial CO₂ removal and recovery applications.

离子液体显示出良好的CO ₂吸收能力，但吸收动力学较差且成本较高。在目前的工作中，我们表明可以通过在低成本介孔微球载体上浸渍新型低成本离子液体五乙烯六氯化铵[PEHA] [Cl]和相应的胺前体来解决这些问题。采用氮气吸附/解吸，高分辨率SEM和热重分析法分析了所制备吸附剂的结构和热学性质。一氧化碳₂通过柱实验研究了吸附和解吸性能，并对数据进行了数学模型拟合。结果表明，吸附剂显示出优异的吸附动力学和容量，可与文献中的最佳报告相媲美。另外，吸附剂可以再生并显示出高的热稳定性。最后，在本工作中开发的吸附剂的成本比以前报道的吸附剂低得多。因此，这种新颖的支持的IL系统在工业CO ₂去除和回收应用中可能很有希望。