Modeling study of oxygen permeation through an electronically short-circuited YSZ-based asymmetric hollow fiber membrane
MetadataShow full item record
© 2017 American Institute of Chemical Engineers.Here, oxygen fluxes through an electronically short-circuited asymmetric Ag-YSZ|YSZ|LSM-YSZ hollow fiber prepared via a combined spinning and sintering route were tested and correlated to an explicit oxygen permeation model. The average oxygen permeation through such asymmetric hollow fiber with a 27 µm-thick YSZ dense layer reached 0.52 mL (STP) cm-2 min-1 at 1173 K. From the model results, we can obtain the characteristic thickness, the effects of the temperature, and the effect of He sweep gas flow rate to the individual step contribution. The oxygen partial pressure variation in the permeate side, the local oxygen flux, and the three-different resistance distribution along the axial direction of the asymmetric hollow fiber are theoretically studied; providing guidelines to further improve the membrane performance for oxygen separation.
Showing items related by title, author, creator and subject.
Optimizing Oxygen Transport Through La0.6Sr0.4Co0.2Fe0.8O3-δ Hollow Fiber by Microstructure Modification and Ag/Pt Catalyst DepositionHan, D.; Sunarso, J.; Tan, X.; Yan, Z.; Liu, Lihong; Liu, Shaomin (2012)This work compares the oxygen permeation fluxes of five different La0.6Sr0.4Co0.2Fe0.8O3−δ membranes (e.g. disk, conventional hollow fiber, modified hollow fiber, Ag- or Pt-deposited hollow fiber membranes) to elucidate ...
H2/CH4/CO2-tolerant properties of SrCo0.8Fe0.1Ga0.1O3 − δ hollow fiber membrane reactors for methane partial oxidation to syngasMeng, X.; Bi, X.; Meng, B.; Yang, N.; Tan, X.; Liu, Lihong; Liu, Shaomin (2015)Oxygen permeable ceramic membranes have potential applications as the high temperature membrane reactors for cost-effective syngas production from methane partial oxidation. The prerequisite to realize this potential is ...
Enhancement of oxygen permeation fluxes of La<inf>0.6</inf>Sr<inf>0.4</inf>CoO<inf>3-d</inf>hollow fiber membrane via macrostructure modification and (La<inf>0.5</inf>Sr<inf>0.5</inf>)<inf>2</inf>CoO<inf>4+d</inf>decorationHan, N.; Meng, B.; Yang, N.; Sunarso, J.; Zhu, Z.; Liu, Shaomin (2018)© 2018 Institution of Chemical Engineers Oxygen-selective perovskite hollow fiber membrane can be used to obtain an effective oxygen separation from air at high temperature (above 700 °C) for large scale application. Here, ...