Separations: Materials, Devices, and Processes

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PVAm–PIP/PS Composite Membrane with High Performance for CO2/N2 Separation

  1. Zhihua Qiao1,2,3,
  2. Zhi Wang1,2,3,*,
  3. Chenxin Zhang1,2,3,
  4. Shuangjie Yuan1,2,3,
  5. Yaqun Zhu1,2,3,
  6. Jixiao Wang1,2,3,
  7. Shichang Wang1,3

Article first published online: 19 MAR 2012

DOI: 10.1002/aic.13781

Issue

AIChE Journal

AIChE Journal

Volume 59, Issue 1, pages 215–228, January 2013

Additional Information

How to Cite

Qiao, Z., Wang, Z., Zhang, C., Yuan, S., Zhu, Y., Wang, J. and Wang, S. (2013), PVAm–PIP/PS Composite Membrane with High Performance for CO2/N2 Separation. AIChE J., 59: 215–228. doi: 10.1002/aic.13781

Author Information

  1. 1

    Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin, P.R. China

  2. 2

    State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, P.R. China

  3. 3

    Dept. of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin, P.R. China

*Correspondence concerning this article should be addressed to Z. Wang at wangzhi@tju.edu.cn.

Publication History

  1. Issue published online: 21 DEC 2012
  2. Article first published online: 19 MAR 2012
  3. Accepted manuscript online: 21 FEB 2012 12:13PM EST
  4. Manuscript Revised: 7 FEB 2012
  5. Manuscript Received: 30 SEP 2011

Funded by

  • Natural Science Foundation of China. Grant Number: 20836006
  • National Basic Research Program. Grant Number: 2009CB623405
  • Science & Technology Pillar Program of Tianjin. Grant Number: 10ZCKFSH01700
  • Programme of Introducing Talents of Discipline to Universities. Grant Number: B06006
  • Cheung Kong Scholar Program for Innovative Teams of the Ministry of Education. Grant Number: IRT0641

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Keywords:

  • fixed carrier membrane;
  • piperazine;
  • cross-linking;
  • polyvinylamine;
  • CO2 permeance;
  • CO2/N2 selectivity

Polyvinylamine (PVAm) was modified using a cross-linking agent containing carriers piperazine (PIP). Attenuated total reflectance fourier transform infrared, elemental analyzer, and X-ray diffraction were used to characterize the PIP-modified PVAm. The PVAm–PIP/polysulfone (PS) composite membrane was developed by coating PVAm–PIP mixed solutions with different mass ratios of PIP/PVAm (mPIP/mPVAm) on the PS ultrafiltration membrane. The effects of mPIP/mPVAm (from 0.715 to 2.860) in the coating solutions and wet coating thickness on the gas performance of the PVAm–PIP/PS composite membrane were investigated. The PVAm–PIP/PS composite membrane prepared showed higher performance than other membranes reported in the literature due to the large increase of the introducing carrier concentration and low crystallinity. Moreover, the separation performance stability of the PVAm–PIP/PS composite membrane was investigated and no deterioration in the membrane permselectivity was observed. Finally, the economic evaluation of the membrane with the highest performance prepared was carried out. © 2012 American Institute of Chemical Engineers AIChE J, 59: 215–228, 2013

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