Oxygen selective ceramic hollow fiber membranes
- Creators
- Liu, Shaomin
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Gavalas, George R.
Abstract
Oxygen ion conducting Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3−δ) hollow fiber membranes with o.d. 1.15 mm and i.d. 0.71 mm were fabricated using a sequence of extrusion, gelation, coating and sintering steps. The starting ceramic powder was synthesized by combined EDTA–citrate complexing followed by thermal treatment at 900 °C. The powder was then dispersed in a polymer solution, and extruded through a spinerette. After gelation, an additional thin coating of the ceramic powder was applied on the fiber, and sintering was carried out at 1190 °C to obtain the final ceramic membrane. The fibers were characterized by SEM, and tested for air separation at ambient pressure and at temperatures between 700 and 950 °C. The maximum oxygen flux measured was 5.1 mL/min/cm^2 at 950 °C.
Additional Information
© 2004 Elsevier. Received 22 June 2004; received in revised form 9 September 2004; accepted 15 September 2004; Available online 19 November 2004. The authors gratefully acknowledge the support provided by the Petroleum Research Fund of the American Chemical Society, Grant No. 38162-AC5.Additional details
- Eprint ID
- 60818
- Resolver ID
- CaltechAUTHORS:20151006-150210599
- American Chemical Society Petroleum Research Fund
- 38162-AC5
- Created
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2015-10-07Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field