An ultra-stable layered microporous material for efficient separation of humid ethane/ethylene mixture

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2024-12-22 DOI:10.1016/j.seppur.2024.131239

JiaXing Ye , Shuixiang Zou , Danhua Song , Hengbo Li , YaShuang Li , Zhenyu Ji , Cheng Chen , Mingyan Wu

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Abstract

Efficient one-step separation of ethylene (C₂H₄) and ethane (C₂H₆) is an indispensable and challenging task in petrochemical industry. Herein, we employ a V-shaped pyrazole ligand and zinc ions in tetrahedral configuration to synthesize a layered framework (termed as Zn-BPDP) with rhombic nonpolar channels, which can realize one-step purification of C₂H₄ from C₂H₆/C₂H₄ mixture. The high C₂H₆/C₂H₄ selectivity of Zn-BPDP has been supported by collaborative studies of single-component adsorption isotherms, adsorption heat calculation, ideal adsorption solution theory and theoretical calculation. The breakthrough experiments demonstrate that the mixture of C₂H₆/C₂H₄ (1/99, 1/15, 10/90 and 50/50) can be efficiently separated by Zn-BPDP. More importantly, Zn-BPDP displays outstanding stability in air, high thermal, organic solvents and water, which endows it excellent cycle performance even under high humidity conditions.

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一种用于湿乙烷/乙烯混合物高效分离的超稳定层状微孔材料

乙烯（C2H4）和乙烷（C2H6）的高效一步分离是石化工业中不可缺少的和具有挑战性的任务。本文采用v形吡唑配体和四面体结构的锌离子合成了具有菱形非极性通道的层状框架（Zn-BPDP），实现了从C2H6/C2H4混合物中一步提纯C2H4。Zn-BPDP的高C2H6/C2H4选择性得到了单组分吸附等温线、吸附热计算、理想吸附溶液理论和理论计算的协同研究的支持。突破性实验表明，Zn-BPDP可以有效分离C2H6/C2H4的混合物（1/99、1/15、10/90和50/50）。更重要的是，Zn-BPDP在空气、高热、有机溶剂和水中具有出色的稳定性，即使在高湿条件下也具有出色的循环性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.