摘要：The separation of butane isomers, raw materials in petrochemical industry, is challenging. Here the authors report the separation of n-butane and isobutane using a metal-organic framework slurry; the separation can be performed at large scale in a pilot-scale separation tower. n-butane and isobutane are important petrochemical raw materials. Their separation is challenging because of their similar properties, including boiling point. Here, we report a zeolitic imidazolate framework-8 (ZIF-8)/N,N-Dimethylpropyleneurea (DMPU)-water slurry as sorption material to separate butane mixtures. The isobutane/n-butane selectivity of ZIF-8/DMPU-water slurries is as high as 890 with high kinetic performance, which transcends the upper limit of various separation materials or membranes reported in the literature. More encouragingly, a continuous pilot separation device was established, and the test results show that the purity and recovery ratio of isobutane product are 99.46 mol% and 87%, respectively, which are superior to the corresponding performance (98.56 mol% and 54%) of the industrial distillation tower. To the best of our knowledge, the use of metal-organic frameworks (MOFs) for gas separation in pilot scale remains underexplored, and thus this work provides a step forward to the commercial application of MOFs in gas separation.

ISSN号：2041-1723

卷、期、页：卷: 13期: 1

发表日期：2022-08-15

影响因子：14.918900

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,SCIE（科学引文索引网络版）

发表期刊名称：NATURE COMMUNICATIONS

参与作者：Zuo, Julian Y.

通讯作者：杨明科,王惠珊,柴莉桠,李昆,肖寒,陈婉,彭晓婉,韩宇,黄子轩,董保灿

第一作者：邓春,刘蓓,肖朋,王晓辉,孙长宇,陈光进

论文类型：期刊论文

论文概要：杨明科,王惠珊,Zuo, Julian Y.,邓春,刘蓓,柴莉桠,李昆,肖寒,肖朋,王晓辉,陈婉,彭晓婉,韩宇,黄子轩,董保灿,孙长宇,陈光进，Efficient separation of butane isomers via ZIF-8 slurry on laboratory- and pilot-scale，NATURE COMMUNICATIONS，2022，卷: 13期: 1

论文题目：Efficient separation of butane isomers via ZIF-8 slurry on laboratory- and pilot-scale