Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene
Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene
复制标题
用于从丙烯中高效去除丙炔的柔性-鲁棒金属有机框架
DOI：
10.1021/jacs.7b04268
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发表时间：
2017-06-14
影响因子：
15
通讯作者：
Chen, Banglin
中科院分区：
文献类型：
--
作者：
Li, Libo;Lin, Rui-Biao;Chen, Banglin
从丙烯中脱除微量丙炔是生产高聚物级丙烯的关键。在此，我们报道了第一个用于高效分离丙炔/丙烯混合物的柔性坚固的金属有机骨架的例子。中子粉末衍射研究和密度泛函理论计算表明，丙炔具有较强的结合亲和力和合适的孔限制，因而具有较高的吸附能力和选择性。1/99丙炔/丙烯混合气的穿透曲线表明，得到的丙烯纯度在99.9998%以上。
The removal of trace amounts of propyne from propylene is critical for the production of polymer grade propylene. We herein report the first example of metal organic frameworks of flexible robust nature for the efficient separation of propyne/propylene mixtures. The strong binding affinity and suitable pore confinement for propyne account for its high uptake capacity and selectivity, as evidenced by neutron powder diffraction studies and density functional theory calculations. The purity of the obtained propylene is over 99.9998%, as demonstrated by experimental breakthrough curves for a 1/99 propyne/propylene mixture.