Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 126-130 |
| Seitenumfang | 5 |
| Fachzeitschrift | Catalysis today |
| Jahrgang | 104 |
| Ausgabenummer | 2-4 |
| Frühes Online-Datum | 6 Mai 2005 |
| Publikationsstatus | Veröffentlicht - 30 Juni 2005 |
| Veranstaltung | 6th International Conference on Catalysis in Membrane Reactors 2004 - Lahnstein, Deutschland Dauer: 6 Juli 2004 → 9 Juli 2004 |
Abstract
The first oxygen permeation data of a dense hollow fiber perovskite membrane based on BaCoxFeyZrzO 3 - δ are reported. The hollow fiber was prepared by a phase inversion process. Dense fibers were obtained with the following typical geometries: outer diameter, 800-900 μm; inner diameter, 500-600 μm; length, 30 cm. The O2-permeation through the hollow fiber perovskite membrane was studied in a high-temperature gas permeation cell under different operation conditions. The increase of the helium gas flow rate reduces the oxygen partial pressure (pO2) on the core side and a higher oxygen permeation flux is observed. High oxygen flux of 0.73 m3 (O2)/(m 2 (membrane) h) was achieved at 850 °C under the operation parameters Fair (shell side) = 150 ml/min and FHe (core side) = 30 ml/min. The oxygen partial pressure dependence of the O2 permeation flux indicated an interplay of both surface reaction and bulk diffusion as rate limiting steps. During 5 days of permeation a high and stable oxygen flux was observed. X-ray diffraction patterns of fresh and spent membranes after the permeation measurements revealed that no degradation after oxygen permeation appears.
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Katalyse
- Chemie (insg.)
- Allgemeine Chemie
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in: Catalysis today, Jahrgang 104, Nr. 2-4, 30.06.2005, S. 126-130.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Oxygen permeation study of perovskite hollow fiber membranes
AU - Tablet, Cristina
AU - Grubert, Gerd
AU - Wang, Haihui
AU - Schiestel, Thomas
AU - Schroeder, Michael
AU - Langanke, Bernd
AU - Caro, Jürgen
PY - 2005/6/30
Y1 - 2005/6/30
N2 - The first oxygen permeation data of a dense hollow fiber perovskite membrane based on BaCoxFeyZrzO 3 - δ are reported. The hollow fiber was prepared by a phase inversion process. Dense fibers were obtained with the following typical geometries: outer diameter, 800-900 μm; inner diameter, 500-600 μm; length, 30 cm. The O2-permeation through the hollow fiber perovskite membrane was studied in a high-temperature gas permeation cell under different operation conditions. The increase of the helium gas flow rate reduces the oxygen partial pressure (pO2) on the core side and a higher oxygen permeation flux is observed. High oxygen flux of 0.73 m3 (O2)/(m 2 (membrane) h) was achieved at 850 °C under the operation parameters Fair (shell side) = 150 ml/min and FHe (core side) = 30 ml/min. The oxygen partial pressure dependence of the O2 permeation flux indicated an interplay of both surface reaction and bulk diffusion as rate limiting steps. During 5 days of permeation a high and stable oxygen flux was observed. X-ray diffraction patterns of fresh and spent membranes after the permeation measurements revealed that no degradation after oxygen permeation appears.
AB - The first oxygen permeation data of a dense hollow fiber perovskite membrane based on BaCoxFeyZrzO 3 - δ are reported. The hollow fiber was prepared by a phase inversion process. Dense fibers were obtained with the following typical geometries: outer diameter, 800-900 μm; inner diameter, 500-600 μm; length, 30 cm. The O2-permeation through the hollow fiber perovskite membrane was studied in a high-temperature gas permeation cell under different operation conditions. The increase of the helium gas flow rate reduces the oxygen partial pressure (pO2) on the core side and a higher oxygen permeation flux is observed. High oxygen flux of 0.73 m3 (O2)/(m 2 (membrane) h) was achieved at 850 °C under the operation parameters Fair (shell side) = 150 ml/min and FHe (core side) = 30 ml/min. The oxygen partial pressure dependence of the O2 permeation flux indicated an interplay of both surface reaction and bulk diffusion as rate limiting steps. During 5 days of permeation a high and stable oxygen flux was observed. X-ray diffraction patterns of fresh and spent membranes after the permeation measurements revealed that no degradation after oxygen permeation appears.
KW - Hollow fiber
KW - Membrane
KW - Oxygen separation
KW - Perovskite
KW - POM
KW - Syngas
UR - http://www.scopus.com/inward/record.url?scp=31344455746&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2005.03.064
DO - 10.1016/j.cattod.2005.03.064
M3 - Conference article
AN - SCOPUS:31344455746
VL - 104
SP - 126
EP - 130
JO - Catalysis today
JF - Catalysis today
SN - 0920-5861
IS - 2-4
T2 - 6th International Conference on Catalysis in Membrane Reactors 2004
Y2 - 6 July 2004 through 9 July 2004
ER -