Enhanced Propene/Propane Separation by Directional Decoration of the 12‐Membered Rings of Mordenite with ZIF Fragments

Propene/propane separation is challenging due to the very small difference in molecular sizes, boiling points and condensabilities between these molecules. Herein, we report a strategy of introducing ZIF fragments into traditional mordenite (MOR) zeolite to decorate the 12‐membered ring of MOR. Afte...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-04, Vol.59 (17), p.6765-6768
Main Authors: Wu, Yaqi, Zeng, Shu, Yuan, Danhua, Xing, Jiacheng, Liu, Hanbang, Xu, Shutao, Wei, Yingxu, Xu, Yunpeng, Liu, Zhongmin
Format: Article
Language:English
Subjects:
Boiling points
Decoration
Fragments
gas adsorption
mordenite
Propane
propene/propane separation
Separation
Zeolites
ZIF fragments
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Summary:Propene/propane separation is challenging due to the very small difference in molecular sizes, boiling points and condensabilities between these molecules. Herein, we report a strategy of introducing ZIF fragments into traditional mordenite (MOR) zeolite to decorate the 12‐membered ring of MOR. After decoration, the originally ineffective zeolite MOR exhibited high kinetic propene/propane selectivities (139 at 25 °C) and achieved efficient propene/propane separation. The propene/propane separation potentials of the resulting adsorbents were further confirmed by breakthrough experiments with equimolar propene/propane (50/50) mixtures. Separation of the unseparable: The 12‐membered rings of mordenite (MOR) zeolite were directionally decorated with ZIF fragments. The resulting material shows greatly improved propene/propane separation performance.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202000029