Support surface pore structures matter: Effects of support surface pore structures on the TFC gas separation membrane performance over a wide pressure range

Mengqi Shi; Chenxi Dong; Zhi Wang; Xinxia Tian; Song Zhao; Jixiao Wang

doi:10.1016/j.cjche.2018.12.009

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Support surface pore structures matter: Effects of support surface pore structures on the TFC gas separation membrane performance over a wide pressure range

Separation Science and Engineering | Updated：2026-01-06

- Support surface pore structures matter: Effects of support surface pore structures on the TFC gas separation membrane performance over a wide pressure range
- Chinese Journal of Chemical Engineering Vol. 27, Issue 8, Pages: 1807-1816(2019)
- Affiliations：
  
  1. Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300350
  2. Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University,Tianjin,China,300350
  3. Research Institute of Shannxi Yanchang Petroleum(Group) Co. Ltd.,Xi'an,China,710075
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.12.009
  CLC：
- Published：2019
- Accepted：
Scan QR Code
Mengqi Shi, Chenxi Dong, Zhi Wang, Xinxia Tian, Song Zhao, Jixiao Wang. Support surface pore structures matter: Effects of support surface pore structures on the TFC gas separation membrane performance over a wide pressure range[J]. Chinese Journal of Chemical Engineering, 2019, 27(8): 1807-1816.
DOI：

Mengqi Shi, Chenxi Dong, Zhi Wang, Xinxia Tian, Song Zhao, Jixiao Wang. Support surface pore structures matter: Effects of support surface pore structures on the TFC gas separation membrane performance over a wide pressure range[J]. Chinese Journal of Chemical Engineering, 2019, 27(8): 1807-1816. DOI： 10.1016/j.cjche.2018.12.009.

摘要

Abstract

In this work

the effects of support surface pore structures (including surface pore size

surface pore density and surface porosity) on the performance of thin film composite (TFC) gas separation membrane over a wide pressure range (from 0.3 to 2.0 MPa) were studied. To fulfill it

the polysulfone (PSf) supports with different surface pore structures were prepared. Two kinds of wide-accepted polymeric membrane materials

i.e

polyvinylamine (PVAm) and Pebax 1657 copolymer

were used as skin layer materials. We pointed out for the first time that the support surface average pore size and pore density could affect the chain mobility of polymer of skin layer at the support surface pore entrance

then

can affect the TFC membrane performance. Besides

we also discussed the effects of support on the TFC membrane performance when the feed pressure changes for the first time. This work can provide guidance for choosing a suitable support for TFC gas separation membrane.

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