一种具有非极性孔表面的金属有机框架，用于从甲烷和乙烷混合物中一步获取甲烷。
A Metal-Organic Framework with Nonpolar Pore Surfaces for the One-Step Acquisition of C H from a C H and C H Mixture.
作者信息
Di Zhengyi, Liu Caiping, Pang Jiandong, Zou Shuixiang, Ji Zhenyu, Hu Falu, Chen Cheng, Yuan Daqiang, Hong Maochun, Wu Mingyan
机构信息
State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin, 300387, China.
出版信息
Angew Chem Int Ed Engl. 2022 Oct 17;61(42):e202210343. doi: 10.1002/anie.202210343. Epub 2022 Aug 31.
Because C H plays an essential role in the chemical industry, economical and energy-efficient separation of ethylene (C H ) from ethane (C H ) is extremely important. With the exception of energy-intensive cryogenic distillation, there are few one-step methods to obtain polymer-grade (≥99.95 % pure) C H from C H /C H mixtures. Here we report a highly stable metal-organic-framework (MOF) FJI-H11-Me(des) (FJI-H=Hong's group in Fujian Institute of Research on the Structure of Matter) which features one-dimensional hexagonal nonpolar pore surfaces constructed by aromatic rings and alkyl groups. This FJI-H11-Me(des) adsorbs C H rather than C H between 273 and 303 K. Practical breakthrough experiments with C H containing 1 % C H have shown that FJI-H11-Me(des) can realize the acquisition in one-step of polymer-grade, 99.95 % pure C H under various conditions including different gas flow rates, temperatures and relative humidity.
由于乙烯在化学工业中起着至关重要的作用，因此从乙烷中经济高效地分离乙烯极为重要。除了能源密集型的低温蒸馏外，从乙烯/乙烷混合物中获得聚合物级（≥99.95% 纯）乙烯的一步法很少。在此，我们报道了一种高度稳定的金属有机框架（MOF）FJI-H11-Me(des)（FJI-H = 福建物质结构研究所洪课题组），其具有由芳环和烷基构建的一维六边形非极性孔表面。这种FJI-H11-Me(des)在273至303 K之间吸附乙烯而非乙烷。含1% 乙烷的乙烯的实际突破实验表明，FJI-H11-Me(des)在包括不同气体流速、温度和相对湿度的各种条件下，能够一步实现聚合物级、99.95% 纯乙烯的获取。
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