Preparation and characterization of small molecular amine modified PVAm membranes for CO2/H2 separation

被引：55

作者：

Qiao, Zhihua ^{[1
,2
]}

Wang, Zhi ^{[1
,2
]}

Yuan, Shuangjie ^{[1
,2
]}

Wang, Jixiao ^{[1
,2
]}

Wang, Shichang ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, State Key Lab Chem Engn, Tianjin Key Lab Membrane Sci & Desalinat Technol, Tianjin 300072, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2015年 / 475卷

基金：

中国国家自然科学基金;

关键词：

SMA; Polyvinylamine; Monoethanolamine; PVAm-MEA/PS membrane; CO2/H-2; separation; FACILITATED TRANSPORT; HIGH-PERFORMANCE; CO2; PERMSELECTIVITY; BEHAVIOR;

D O I：

10.1016/j.memsci.2014.10.034

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Small molecular amines (SMAs) (ethanecliamine (EDA), piperazine (PIP), monoethanolamine (MEA) and diethanol amine (DEA)) were separately used to modify the polyvinylamine (PVAm). ATR-FTIR, elemental analyzer, XRD and SEM were employed to characterize the SMA interacted PVAm. The PVAm-SMA/polysullone (PS) membranes were developed by coating PVAm-SMA mixed solutions on the PS ultrafiltration membrane. CO2 permeance and CO2/H-2 selectivity of the PVAm-SMAIPS membranes were investigated. Among different PVAm-SMA/PS membranes, the PVAm-MEA/PS membrane shows the highest CO2/H-2 separation performance. Moreover, the effect of the selective layer thickness on the CO2/H-2 separation performance of the PVAm-MEA/PS membrane was studied. With increasing the PVAm-MEA selective layer thickness, the CO2/H-2 separation performance of the membrane apparently decreases. Finally, the CO2/H-2 separation performance stability of the PVAm-MEA/PS membranes was investigated and no deterioration in the membrane permselectivity was observed. (C) 2014 Elsevier B.V. All rights reserved

引用

页码：290 / 302

页数：13

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