Flexible Metal-Organic Frameworks with Discriminatory Gate Opening Effect for the Separation of Acetylene from Ethylene/Acetylene Mixtures

被引：31

作者：

Upi, Libo ^{[1
]}

Krishna, Rajamani ^{[2
]}

Wang, Yong ^{[1
]}

Wang, Xiaoqing ^{[1
]}

Yang, Jiangfeng ^{[1
]}

Li, Jinping ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Shanxi, Peoples R China

[2] Univ Amsterdam, Vant Hoff Inst Mol Sci, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2016年 / 27期

基金：

中国国家自然科学基金;

关键词：

Metal-organic frameworks; Adsorption; Copper; Ethylene; Acetylene; Gas separation; HIGHLY SELECTIVE ADSORPTION; COORDINATION POLYMERS; SORPTION PROPERTIES; PI-COMPLEXATION; STORAGE; CO2; HYDROCARBONS; TEMPERATURE; PRESSURE; ETHYLENE;

D O I：

10.1002/ejic.207600182

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Adsorptive separation of acetylene from ethylene/acetylene mixtures is a technologically very important and highly challenging task. In this work, we describe two flexible metal-organic frameworks (MOFs), ELM-11 and ELM-13, that display adsorbate discriminatory gate effects. The two MOFs exhibit gate-opening-type adsorption properties for C2H2 but not for C2H4, leading to a highly selective adsorption of acetylene over ethylene at 273-298 K. The potential of the flexible MOFs for the separation is established by combining measurements of adsorption isotherms, ideal adsorbed solution theory (IAST) calculations of the adsorption equilibrium of the mixture, and transient breakthrough experiments. The results suggest the potential of both flexible MOFs for the industrial removal of acetylene from ethylene/acetylene mixtures through the energy-efficient adsorption separation process.

引用

页码：4457 / 4462

页数：6

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