Synergistic sorbent separation for one-step ethylene purification from a four-component mixture

Kai Jie Chen, David G. Madden, Soumya Mukherjee, Tony Pham, Katherine A. Forrest, Amrit Kumar, Brian Space, Jie Kong, Qiu Yu Zhang, Michael J. Zaworotko

科研成果: 期刊稿件文章同行评审

461 引用 (Scopus)

摘要

Purification of ethylene (C2H4), the largest-volume product of the chemical industry, currently involves energy-intensive processes such as chemisorption (CO2removal), catalytic hydrogenation (C2H2conversion), and cryogenic distillation (C2H6separation). Although advanced physisorbent or membrane separation could lower the energy input, one-step removal of multiple impurities, especially trace impurities, has not been feasible. We introduce a synergistic sorbent separation method for the one-step production of polymer-grade C2H4from ternary (C2H2/C2H6/C2H4) or quaternary (CO2/C2H2/C2H6/C2H4) gas mixtures with a series of physisorbents in a packed-bed geometry. We synthesized ultraselective microporous metal-organic materials that were readily regenerated, including one that was selective for C2H6over CO2, C2H2, and C2H4.

源语言英语
页(从-至)241-246
页数6
期刊Science
366
6462
DOI
出版状态已出版 - 11 10月 2019

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