Preparation and performance of VSA-SA/PS fixed carrier membrane for CO<sub>2</sub>/CH<sub>4</sub> separation

ZHANG Ying; WANG Zhi; YI Chunhai; WANG Jixiao; WANG Shichang

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Preparation and performance of VSA-SA/PS fixed carrier membrane for CO₂/CH₄ separation

更新时间：2025-12-10

- Preparation and performance of VSA-SA/PS fixed carrier membrane for CO₂/CH₄ separation
- CIESC Journal Issue 1, Pages: 163-168(2006)
- 作者机构：
  
  天津大学化工学院化学工程研究所,天津,300072
- 作者简介：
- 基金信息：
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- Online First：25 January 2006，
  
  Published：25 January 2006
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ZHANG Ying, WANG Zhi, YI Chunhai, et al. Preparation and performance of VSA-SA/PS fixed carrier membrane for CO₂/CH₄ separation[J]. CIESC Journal, 2006, (1): 163-168.
DOI：

ZHANG Ying, WANG Zhi, YI Chunhai, et al. Preparation and performance of VSA-SA/PS fixed carrier membrane for CO₂/CH₄ separation[J]. CIESC Journal, 2006, (1): 163-168. DOI：

摘要

以自由基共聚合和水解的方法合成了一种新型的CO2固定载体膜材料N-乙烯基-γ-氨基丁酸钠-丙烯酸钠共聚物 (VSA-SA).以VSA-SA为表层，聚砜超滤膜为支撑体制得复合膜.研究了复合膜对CO2/CH4体系的渗透选择性，考察了金属离子交联剂和交联时间以及进料气组成对复合膜性能的影响.本文制得的复合膜运行1周仍能维持良好的分离因子和CO2渗透速率.

Abstract

A kind of new fixed carrier membrane material for CO2 separation

N-vinyl-γ-sodium aminobutyrate-sodium acrylate copolymer(VSA-SA)

was synthesized by radical copolymerization and hydrolysis. The composite membrane was developed with VSA-SA as an active layer and polysulfone (PS) ultra-filtration membrane as the support. Several kinds of metal ion cross-linkers were used to improve the performance of the composite membrane. The effects of cross-linking time on the cross-linked membrane were also studied. The membrane performance was investigated by using feed gases with different ratios of CO2 to CH4.The results showed that the composite membrane was more suitable for the separation and removal of the natural gas with high CH4 content. The prepared membrane was stable during one week testing.

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Preparation and performance of VSA-SA/PS fixed carrier membrane for CO2/CH4 separation

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Preparation and performance of VSA-SA/PS fixed carrier membrane for CO₂/CH₄ separation