Abstract
The high-purity oxygen production from ambient air through the dense one end-dead perovskite hollow fiber membrane based on Ba0.5Sr0.5Co0.8Fe0.2O3−δ prepared by a phase inversion spinning process is reported. High oxygen purity up to 99.7vol% and high oxygen permeation flux of 1.74ml/mincm2 are obtained after 2-h activation in the initial stage at 950°C under the vacuum degree of 99.0kPa on the core side and the ambient air of 1.0atm on the feed side. The X-ray diffraction (XRD), scanning electron microscope (SEM) and energy spectrum analysis (EDS) show that the carbonate appears in the spent hollow fiber membrane after 24-h oxygen permeation in the ambient air, which leads to the decline of the oxygen permeation flux. However, the pure oxygen can be produced in one step through the one end-dead hollow fiber membrane without any inert gas, so the second separation is not necessary any more and it is beneficial to the industrial application for high-purity oxygen production.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
