Enhanced compatibility and selectivity in mixed matrix membranes for propylene/propane separation

被引：18

作者：

He, Rongrong ^{[1
]}

Cong, Shenzhen ^{[1
]}

Peng, Donglai ^{[1
,2
]}

Zhang, Yatao ^{[1
,3
]}

Shan, Meixia ^{[1
]}

Zhu, Junyong ^{[1
]}

Wang, Jing ^{[1
]}

Gascon, Jorge ^{[4
]}

机构：

[1] Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China

[2] Zhengzhou Univ Light Ind, Sch Mat & Chem Engn, Zhengzhou, Peoples R China

[3] Zhengzhou Univ, Engn Res Ctr Adv Mfg, Minist Educ, Zhengzhou, Peoples R China

[4] King Abdullah Univ Sci & Technol, KAUST Catalysis Ctr, Adv Catalyt Mat, Thuwal 23955, Saudi Arabia

来源：

AICHE JOURNAL | 2023年 / 69卷 / 03期

基金：

中国国家自然科学基金;

关键词：

double-solvent method; interfacial compatibility; mixed matrix membranes; propylene; propane separation; METAL-ORGANIC FRAMEWORK; GENERAL FORCE-FIELD; PLASTICIZATION RESISTANCE; HIGHLY EFFICIENT;

D O I：

10.1002/aic.17948

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Mixed matrix membranes (MMMs) based on metal-organic framework (MOF) have great promising application in separation of gas mixtures. However, achieving a good interfacial compatibility between polymer and MOF is not straightforward. In this work, focusing on one of the most challenging olefin/paraffin separations: propylene/propane (C3H6/C3H8), we demonstrate that modification of the MOF filler via dopamine polymerization using a double solvent approach strongly improves interfacial compatibility. The resulting membranes show an outstanding separation performance and long-term stability with propylene permeability nearly 90 Barrer and propylene/propane selectivity close to 75. We anticipate that similar MOF modification strategies may help solve the problem of interface defects in the manufacture of MMMs and be extended to other porous fillers.

引用

页数：10

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