超微孔铝基MOF的制备及乙烷乙烯分离性能研究

Preparation of Ultramicroporous Aluminum-based MOF for Separation of Ethane and Ethylene

制备了一种CAU-10-H超微孔MOF材料,并以N_(2)为探针分子对该材料的孔隙结构、比表面积等孔隙特征进行了测试分析;同时采用蒸汽吸附仪和固定吸附床对单组分气体和混合气成分进行了等温吸附测试和动力学穿透测试。结果表明,该材料具有典型的一维超微孔结构特征(孔径为4.6Å),且吸附等温吸附和动态穿透测试也证实该材料对CO_(2)具有突出的等温吸附性能。因此,该材料不仅实现对天然气的提质、增效,还可以有望助推“减污降碳”和节能减排。

A CAU-10-H microporous MOF material was prepared,and the pore structure,specific surface area and other pore characteristics of the material were tested and analyzed using N_(2) as the probe molecule.At the same time,the isothermal adsorption and kinetic penetration tests of single and mixed gas components were carried out by using a steam adsorption instrument and a fixed adsorption bed.The results showed that the material had typical one-dimensional ultramicroporous structure characteristics(pore size was 4.6Å),and the adsorption isothermal adsorption and dynamic penetration tests also confirmed that the material had outstanding isothermal adsorption properties for CO_(2).Therefore,the material not only improved the quality and efficiency of natural gas,but was also expected to promote“pollution reduction and carbon reduction”and energy saving and emission reduction.