Details
| Original language | English |
|---|---|
| Pages (from-to) | 1997-2007 |
| Number of pages | 11 |
| Journal | AIChE journal |
| Volume | 61 |
| Issue number | 6 |
| Early online date | 24 Feb 2015 |
| Publication status | Published - 1 Jun 2015 |
Abstract
A Mo-substituted lanthanum tungstate mixed proton-electron conductor, La5.5W0.6Mo0.4O11.25-δ (LWM04), was synthesized using solid state reactions. Dense U-shaped LWM04 hollow-fiber membranes were successfully prepared using wet-spinning phase-inversion and sintering. The stability of LWM04 in a CO2-containing atmosphere and the permeation of hydrogen through the LWM04 hollow-fiber membrane were investigated in detail. A high hydrogen permeation flux of 1.36 mL/min cm2 was obtained for the U-shaped LWM04 hollow-fiber membranes at 975°C when a mixture of 80% H2-20% He was used as the feed gas and the sweep side was humidified. Moreover, the hydrogen permeation flux did not significantly decrease over 70 h of operation when fed with a mixture containing 25% CO2, 50% H2, and 25% He, indicating that the LWM04 hollow-fiber membrane has good stability under a CO2-containing atmosphere.
Keywords
- H, Hollow-fiber, Membrane, Mixed conductor, Permeation
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biotechnology
- Environmental Science(all)
- Environmental Engineering
- Chemical Engineering(all)
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: AIChE journal, Vol. 61, No. 6, 01.06.2015, p. 1997-2007.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A CO2-stable hollow-fiber membrane with high hydrogen permeation flux
AU - Chen, Yan
AU - Liao, Qing
AU - Li, Zhong
AU - Wang, Haihui
AU - Wei, Yanying
AU - Feldhoff, Armin
AU - Caro, Jürgen
N1 - Publisher Copyright: © 2015 American Institute of Chemical Engineers.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - A Mo-substituted lanthanum tungstate mixed proton-electron conductor, La5.5W0.6Mo0.4O11.25-δ (LWM04), was synthesized using solid state reactions. Dense U-shaped LWM04 hollow-fiber membranes were successfully prepared using wet-spinning phase-inversion and sintering. The stability of LWM04 in a CO2-containing atmosphere and the permeation of hydrogen through the LWM04 hollow-fiber membrane were investigated in detail. A high hydrogen permeation flux of 1.36 mL/min cm2 was obtained for the U-shaped LWM04 hollow-fiber membranes at 975°C when a mixture of 80% H2-20% He was used as the feed gas and the sweep side was humidified. Moreover, the hydrogen permeation flux did not significantly decrease over 70 h of operation when fed with a mixture containing 25% CO2, 50% H2, and 25% He, indicating that the LWM04 hollow-fiber membrane has good stability under a CO2-containing atmosphere.
AB - A Mo-substituted lanthanum tungstate mixed proton-electron conductor, La5.5W0.6Mo0.4O11.25-δ (LWM04), was synthesized using solid state reactions. Dense U-shaped LWM04 hollow-fiber membranes were successfully prepared using wet-spinning phase-inversion and sintering. The stability of LWM04 in a CO2-containing atmosphere and the permeation of hydrogen through the LWM04 hollow-fiber membrane were investigated in detail. A high hydrogen permeation flux of 1.36 mL/min cm2 was obtained for the U-shaped LWM04 hollow-fiber membranes at 975°C when a mixture of 80% H2-20% He was used as the feed gas and the sweep side was humidified. Moreover, the hydrogen permeation flux did not significantly decrease over 70 h of operation when fed with a mixture containing 25% CO2, 50% H2, and 25% He, indicating that the LWM04 hollow-fiber membrane has good stability under a CO2-containing atmosphere.
KW - H
KW - Hollow-fiber
KW - Membrane
KW - Mixed conductor
KW - Permeation
UR - http://www.scopus.com/inward/record.url?scp=84929606610&partnerID=8YFLogxK
U2 - 10.1002/aic.14772
DO - 10.1002/aic.14772
M3 - Article
AN - SCOPUS:84929606610
VL - 61
SP - 1997
EP - 2007
JO - AIChE journal
JF - AIChE journal
SN - 0001-1541
IS - 6
ER -