Details
| Original language | English |
|---|---|
| Pages (from-to) | 154-160 |
| Number of pages | 7 |
| Journal | Journal of membrane science |
| Volume | 350 |
| Issue number | 1-2 |
| Early online date | 24 Dec 2009 |
| Publication status | Published - 15 Mar 2010 |
Abstract
A novel dense BaCo0.7Fe0.2Ta0.1O3-δ (BCFT) perovskite membrane was successfully synthesized from BaCO3, Co2O3, Fe2O3 and Ta2O5 by a simple solid state reaction. X-ray diffraction (XRD) was used to characterize the phase formation process of BCFT precursors after ball-milling 24 h in ethanol and calcining at different temperatures. The oxygen permeation under different driving forces shows that the oxygen permeation under an air/He oxygen gradient is controlled by bulk diffusion at 900 °C for a membrane thickness from 0.6 mm to 1.2 mm. However, the oxygen permeation under the stronger oxygen gradient in the partial oxidation of methane (POM) to syngas reaction at 900 °C is limited by the oxygen surface exchange. The POM to syngas in the BCFT reactor was successfully performed. Methane conversion was found to be >99% with 94% CO selectivity and 16.2 ml/min cm2 oxygen permeation flux under a steady state condition was obtained at 900 °C. Moreover, the BCFT membrane reactor has been steadily operated in the POM to syngas reaction for more than 400 h without any fractures.
Keywords
- Membrane reactor, Mixed conductor, Oxygen permeation, Perovskite, POM
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Materials Science(all)
- General Materials Science
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Filtration and Separation
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In: Journal of membrane science, Vol. 350, No. 1-2, 15.03.2010, p. 154-160.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Performance of a ceramic membrane reactor with high oxygen flux Ta-containing perovskite for the partial oxidation of methane to syngas
AU - Luo, Huixia
AU - Wei, Yanying
AU - Jiang, Heqing
AU - Yuan, Wenhui
AU - Lv, Yangxiao
AU - Caro, Jürgen
AU - Wang, Haihui
PY - 2010/3/15
Y1 - 2010/3/15
N2 - A novel dense BaCo0.7Fe0.2Ta0.1O3-δ (BCFT) perovskite membrane was successfully synthesized from BaCO3, Co2O3, Fe2O3 and Ta2O5 by a simple solid state reaction. X-ray diffraction (XRD) was used to characterize the phase formation process of BCFT precursors after ball-milling 24 h in ethanol and calcining at different temperatures. The oxygen permeation under different driving forces shows that the oxygen permeation under an air/He oxygen gradient is controlled by bulk diffusion at 900 °C for a membrane thickness from 0.6 mm to 1.2 mm. However, the oxygen permeation under the stronger oxygen gradient in the partial oxidation of methane (POM) to syngas reaction at 900 °C is limited by the oxygen surface exchange. The POM to syngas in the BCFT reactor was successfully performed. Methane conversion was found to be >99% with 94% CO selectivity and 16.2 ml/min cm2 oxygen permeation flux under a steady state condition was obtained at 900 °C. Moreover, the BCFT membrane reactor has been steadily operated in the POM to syngas reaction for more than 400 h without any fractures.
AB - A novel dense BaCo0.7Fe0.2Ta0.1O3-δ (BCFT) perovskite membrane was successfully synthesized from BaCO3, Co2O3, Fe2O3 and Ta2O5 by a simple solid state reaction. X-ray diffraction (XRD) was used to characterize the phase formation process of BCFT precursors after ball-milling 24 h in ethanol and calcining at different temperatures. The oxygen permeation under different driving forces shows that the oxygen permeation under an air/He oxygen gradient is controlled by bulk diffusion at 900 °C for a membrane thickness from 0.6 mm to 1.2 mm. However, the oxygen permeation under the stronger oxygen gradient in the partial oxidation of methane (POM) to syngas reaction at 900 °C is limited by the oxygen surface exchange. The POM to syngas in the BCFT reactor was successfully performed. Methane conversion was found to be >99% with 94% CO selectivity and 16.2 ml/min cm2 oxygen permeation flux under a steady state condition was obtained at 900 °C. Moreover, the BCFT membrane reactor has been steadily operated in the POM to syngas reaction for more than 400 h without any fractures.
KW - Membrane reactor
KW - Mixed conductor
KW - Oxygen permeation
KW - Perovskite
KW - POM
UR - http://www.scopus.com/inward/record.url?scp=76849090409&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2009.12.023
DO - 10.1016/j.memsci.2009.12.023
M3 - Article
AN - SCOPUS:76849090409
VL - 350
SP - 154
EP - 160
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
IS - 1-2
ER -