Erlangen Catalysis Resource Center (ECRC), Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, 91058 Erlangen, Germany.
Institute of Chemical Reaction Engineering, Hamburg University of Technology , Eissendorferstraße 38, 21073 Hamburg, Germany.
Langmuir. 2017 Oct 24;33(42):11170-11179. doi: 10.1021/acs.langmuir.7b02016. Epub 2017 Aug 24.
Four metal-organic frameworks with similar topology but different chemical environment inside the pore structure, namely, IFP-1, IFP-3, IFP-5, and IFP-7, have been investigated with respect to the separation potential for olefin-paraffin mixtures as well as the influence of the different linkers on adsorption properties using experiments and Monte Carlo simulations. All IFP structures show a higher adsorption of ethane compared to ethene with the exception of IFP-7 which shows no selectivity in breakthrough experiments. For propane/propane separation, all adsorbents show a higher adsorption for the olefin. The experimental results agree quite well with the simulated values except for the IFP-7, which is presumably due to the flexibility of the structure. Moreover, the experimental and simulated isotherms were confirmed with breakthrough experiments that render IFP-1, IFP-3, and IFP-5 as suitable for the purification of ethene from ethane.
研究了具有相似拓扑结构但孔结构内化学环境不同的四种金属有机骨架（IFP-1、IFP-3、IFP-5 和 IFP-7），以考察它们对烯烃-烷烃混合物的分离潜力，以及不同连接体对吸附性能的影响，实验和蒙特卡罗模拟都进行了相关研究。所有 IFP 结构都表现出比乙烯更高的乙烷吸附，除了 IFP-7，它在突破实验中没有选择性。对于丙烷/丙烷分离，所有吸附剂对烯烃的吸附都更高。实验结果与模拟值非常吻合，除了 IFP-7，这可能是由于结构的灵活性。此外，通过突破实验证实了实验和模拟等温线，这表明 IFP-1、IFP-3 和 IFP-5 适合从乙烷中纯化乙烯。
