A Microporous Metal‐Organic Framework with Channels Constructed from Nonpolar Aromatic Rings for the Selective Separation of Ethane/Ethylene Mixtures

The separation of ethane and ethylene is an important segment in the purification of chemical raw materials in industrial production. However, due to their similar physical and chemical properties, the separation of C2H6/C2H4 is challenging. Herein, we report the selective adsorption of ethane over...

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Bibliographic Details
Published in:	ChemPlusChem (Weinheim, Germany) Vol. 87; no. 3; pp. e202100482 - n/a
Main Authors:	Liu, Lizhen, Bo, Yiyang, Zhuang, Weitang, Xie, Zhixuan, Yang, Yisi, Lin, Quanjie, Chen, Dinggui, Yao, Zizhu, Xiang, Shengchang
Format:	Journal Article
Language:	English
Published:	Germany 01-03-2022
Subjects:	ethane-selective MOF ethane/ethylene separation gas adsorption metal-organic frameworks nonpolar channels gas adsorption nonpolar channels ethane-selective MOF ethane/ethylene separation metal-organic frameworks
Online Access:	Get full text
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Summary:	The separation of ethane and ethylene is an important segment in the purification of chemical raw materials in industrial production. However, due to their similar physical and chemical properties, the separation of C2H6/C2H4 is challenging. Herein, we report the selective adsorption of ethane over ethylene by a microporous metal‐organic framework with nonpolar aromatic rings constructed channels, [Co1.5(TATB)(H2O)0.5] ⋅ 5DMA ⋅ 3H2O (Co‐TATB, H3TATB=4,4’,4’’‐(s‐triazine‐2,4,6‐triyl) tribenzoic acid). This compound showed a higher ethane capacity than that of ethylene, and a low adsorption enthalpy of ethane only of 19.4 kJ mol−1. Further, the dynamic breakthrough experimental confirmed that Co‐TATB can selectively adsorb ethane from ethane/ethylene separation. A microporous metal‐organic framework affords nonpolar channels for the selective separation of ethane/ethylene mixtures. This compound shows a higher ethane capacity than that of ethylene, and a low adsorption enthalpy of ethane only of 19.4 kJ mol−1. Further, the ideal adsorbed solution theory (IAST) and dynamic breakthrough experimental confirm that Co‐TATB can selectively adsorb ethane from ethane/ethylene separation.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2192-6506 2192-6506
DOI:	10.1002/cplu.202100482