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Separations: Materials, Devices, and Processes
Fabrication and characterization of PEI/PVP-based carbon hollow fiber membranes for CO2/CH4 and CO2/N2 separation
Article first published online: 9 DEC 2011
DOI: 10.1002/aic.13711
Copyright © 2011 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Salleh, W. N. W. and Ismail, A. F. (2012), Fabrication and characterization of PEI/PVP-based carbon hollow fiber membranes for CO2/CH4 and CO2/N2 separation. AIChE J., 58: 3167–3175. doi: 10.1002/aic.13711
Publication History
- Issue published online: 10 SEP 2012
- Article first published online: 9 DEC 2011
- Accepted manuscript online: 28 NOV 2011 12:31PM EST
- Manuscript Revised: 21 SEP 2011
- Manuscript Received: 20 JUN 2011
- Abstract
- Article
- References
- Cited By
Keywords:
- carbon membrane;
- polyetherimide;
- polymer blends;
- carbon dioxide;
- separation
Abstract
Carbon hollow fiber membranes derived from polymer blend of polyetherimide and polyvinylpyrrolidone (PVP) were extensively prepared through stabilization under air atmosphere followed by carbonization under N2 atmosphere. The effects of the PVP compositions on the thermal behavior, structure, and gas permeation properties were investigated thoroughly by means of differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction, and pure gas permeation apparatus. The experimental results indicate that the transport mechanism of small gas molecules of N2, CO2, and CH4 is dominated by the molecular sieving effect. The gas permeation properties of the prepared carbon membranes have a strong dependency on PVP composition. The carbon membranes prepared from polymer blends with 6 wt % PVP demonstrated the highest CO2/CH4 and CO2/N2 selectivities of 55.33 and 41.50, respectively. © 2011 American Institute of Chemical Engineers AIChE J, 58: 3167–3175, 2012