Efficient C2H6/C2H4 adsorption separation by a microporous heterometal-organic framework

被引：11
作者：
Yang, Lan [1 ]
Gao, Qiang [1 ]
Zhang, Yan-Mei [1 ]
Wang, Ruihan [2 ]
Chen, Li-Zhuang [1 ]
机构：
[1] Jiangsu Univ Sci & Technol, Sch Environm & Chem Engn, Zhenjiang 212003, Jiangsu, Peoples R China
[2] Sichuan Univ, Coll Chem, MOE Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2023年 / 652卷
关键词：
Metal-organic frameworks; Ethylene purification; Adsorption separation; Microporous; ETHANE; ETHANE/ETHYLENE;
D O I：
10.1016/j.jcis.2023.08.140
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Purification of ethylene (C2H4) is an essential and energy-intensive process in the petrochemical industry. Adsorption separation using ethane (C2H6)-selective porous adsorbents is a highly efficient and straightforward method for obtaining polymer-grade C2H4 from a binary C2H6/C2H4 mixture. However, the design and construction of C2H6-selective adsorbents are very challenging tasks. Herein, we demonstrate a microporous heterometal-organic framework, CuIn(ina)4, can preferentially enrich C2H6 than C2H4. Experimental results revealed that CuIn(ina)4 exhibited remarkable separation performance for the C2H6/C2H4 mixture with a high C2H6 loading capacity (3.3 mmol/g), high IAST selectivity (2.3) and separation potential (1578 mmol/L for equimolar C2H6/C2H4 mixture) under ambient conditions. The effectiveness of CuIn(ina)4 for C2H6/C2H4 adsorption separation was confirmed by theoretical calculations and breakthrough experiments.
引用
收藏
页码：1093 / 1098
页数：6
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