E-viri
Recenzirano
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Li, Jianlin; Yoon, Heesung; Wachsman, E.D
Journal of membrane science, 09/2011, Letnik: 381, Številka: 1-2Journal Article
Hydrogen permeation through SrCe₀.₇Zr₀.₂Eu₀.₁O₃₋δ membranes was investigated as a function of temperature, feed H₂O partial pressure, feed H₂ partial pressure and flow rate. Hydrogen permeation flux was proportional to the transmembrane H₂ partial pressure gradient with a 1/4 dependence. A maximum H₂ permeation flux of 0.23 and 0.21cm³/cm²min was obtained at 900°C for 100% H₂ and 97vol% H₂/3vol% H₂O conditions, respectively. The activation energy decreased with increasing H₂ partial pressure and/or decreasing steam partial pressure. Permeation flux through the SrCe₀.₇Zr₀.₂Eu₀.₁O₃₋δ membrane was stable under wet H₂, water gas shift reaction and steam reforming of methane conditions.
