Title
Fabrication and oxygen permeability of gastight, macrovoid-free <tex>$Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-\delta}$</tex> capillaries for high temperature gas separation Fabrication and oxygen permeability of gastight, macrovoid-free <tex>$Ba_{0.5}Sr_{0.5}Co_{0.8}Fe_{0.2}O_{3-\delta}$</tex> capillaries for high temperature gas separation
Author
Faculty/Department
Faculty of Sciences. Bioscience Engineering
Publication type
article
Publication
Amsterdam ,
Subject
Chemistry
Biology
Engineering sciences. Technology
Source (journal)
JOURNAL OF MEMBRANE SCIENCE
Journal of membrane science. - Amsterdam
Volume/pages
359(2010) :1-2 , p. 86-92
ISSN
0376-7388
ISI
000279953300010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Oxygen-permeable perovskites with mixed ionic-electronic conducting properties can play an important role in the separation of oxygen from air which is needed in the oxy-fuel and pre-combustion technologies for the removal and capture of CO2. In this work, gastight, macrovoid-free Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) capillaries were successfully shaped by a phase-inversion spinning technique, followed by calcination and sintering. It was found that both the rheology of the ceramic suspension and the composition of bore liquid and coagulation bath are key factors for making macrovoid-free green capillaries. Gastight BSCF capillaries were obtained by sintering for 5 h at 1100 °C. The sintered BSCF capillaries contained a significant amount of BaSO4 due to a reaction with the polysulfone binder during calcination. The oxygen permeation flux through the BSCF capillaries was measured and compared to literature data on BSCF disk and hollow fiber membranes measured in similar conditions.
E-info
https://repository.uantwerpen.be/docman/iruaauth/396f5b/f567b03be79.pdf
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