Selective permeation of CO2 through a composite membrane with a separation layer of 2-N,N-dimethyl aminoethyl methacrylate and acrylic acid copolymer

被引：10

作者：

Shen, Jiang-Nan

Wu, Li-Guang

Zhang, Lin

Dong, Yongquan

Chen, Huan-Lin ^{[1
]}

Gao, Cong-Jie

机构：

[1] Zhejiang Univ, Coll Mat Sci & Chem Engn, Hangzhou 310027, Peoples R China

[2] Tech State Ocean Adm, Dev Ctr Water Treatment, Hangzhou 310012, Peoples R China

来源：

DESALINATION | 2006年 / 193卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

selective permeation; carbon dioxide; methane; 2-(N; N-dimethylamino) ethyl methacrylate; acrylic;

D O I：

10.1016/j.desal.2005.04.147

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A copolymer with a water-soluble polymer was synthesized from acrylic acid (AA) and 2-(dimethylamino) ethyl methacrylate (DMAEMA) by radical polymerization. The composite membrane was prepared with the DMAEMA-AA copolymer as the top layer and a PS ultrafiltration membrane as the support. The permeation of pure CO, and CH, through the composite membrane was measured. The effects of feed gas pressure, separation layer thickness, temperature and heat treatment on the composite membrane performance were studied. The results show that the composite membranes possess good CO2 permeance and selectivity of CO2 over CH4. The membrane displays a CO2 permeation rate of 6.12 x 10(-7) cm(3) (STP) cm(-2) s(-1) Pa-1 and CO2/CH4 selectivity of 253.1 at 26 degrees C, 1140 Pa of gas pressure.

引用

页码：327 / 334

页数：8

共 13 条

[1] Penetrant-induced plasticization phenomenon in glassy polymers for gas separation membrane [J].