Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    La0.7Sr0.3FeO3-α perovskite hollow fiber membranes for oxygen permeationand methane conversion

    Access Status
    Fulltext not available
    Authors
    Tan, X.
    Shi, L.
    Hao, G.
    Meng, B.
    Liu, Shaomin
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Tan, X. and Shi, L. and Hao, G. and Meng, B. and Liu, S. 2012. La0.7Sr0.3FeO3-α perovskite hollow fiber membranes for oxygen permeationand methane conversion. Separation and Purification Technology. 96: pp. 89-97.
    Source Title
    Separation and Purification Technology
    DOI
    10.1016/j.seppur.2012.05.012
    ISSN
    1383-5866
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/17388
    Collection
    • Curtin Research Publications
    Abstract

    Gas-tight La0.7Sr0.3FeO3−α (LSF) perovskite hollow fiber membranes were fabricated by the phase inversion/sintering technique using self-made ceramic powder. The permeation and reaction properties of the LSF membrane were investigated systematically by using He, CO2, H2 and CH4 as the sweep or reactive gas, respectively. The experimental results indicate that the cobalt-free LSF hollow fiber membrane exhibits good stability when exposed in inert gases like He and weak acid gases like CO2 but is not stable in a reducing environment. Continuous and severe segregation may occur when the LSF membrane is operated in H2 and CH4 atmosphere. The oxygen permeation rate is highly dependent on the formation rate of oxygen vacancies on the membrane sweeping side surface. Compared to He as the sweep gas, the use of CO2 restrained the oxygen permeation due to the strong chemical adsorption on the membrane surface. However, the LSF membrane still suffers from the reaction with H2 and CH4 to form porous debris on the membrane surface, which may initially promote the oxygen flux but will finally result in membrane leaking or even breakage. When using H2 or CH4 as the sweep gas, the oxygen in the air feed can be depleted completely by permeating through the membrane. Although the LSF membrane exhibits a kind of catalytic activity to the partial oxidation of methane into syngas with a maximum CO yield of 1.2%, additional catalyst is required to avoid the deep oxidation of the products so that high syngas yields can be achieved.

    Related items

    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 Deposition
      Han, 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 ...
    • Novel SrCo0.9W0.1O3‐δ Hollow Fiber Ceramic Membrane with Enhanced Oxygen Delivery Performance and CO2 Resistance Ability
      Yang, D.; Han, N.; Han, D.; Meng, B.; Wang, G.; Liu, Shaomin (2018)
      The development of the CO2-resistant mixed ionic-electronic conducting membranes can significantly expand their application into many CO2 involved processes, such as the oxy-combustion process and green chemical synthesis ...
    • H2/CH4/CO2-tolerant properties of SrCo0.8Fe0.1Ga0.1O3 − δ hollow fiber membrane reactors for methane partial oxidation to syngas
      Meng, 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 ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.