Modelling of oxygen transport through mixed ionic-electronic conducting (MIEC) ceramic-based membranes: An overview

Mixed ionic-electronic conducting (MIEC) membranes for thermochemical reduction of CO2: A review

“…Based on the bulk diffusion and surface reaction kinetics models described above, expressions have been developed to express the dependency of the permeation process for oxygen separation, water splitting and CO 2 reduction on the operating conditions. A recent review covers most of the oxygen permeation models for MIEC oxygen permeable membranes [162] where the derivation of these models can be found. In this review, we focus on how to apply these models to describe the CO 2 reduction process.…”

“…Here, we will summarize the case with CO 2 reduction. For other cases of membrane supported air separation and water splitting, more detail can be found in [59,140,162,168].…”

Oxygen permeation simulation of La0.8Ca0.2Fe0.95O3−δ‐Ag hollow fiber membrane at different modes and flow configurations

“…The modeling and simulation studies of oxygen permeation through MIEC ceramic membranes have complemented the experimental studies in contributing to the better understanding of the oxygen transport variables and in guiding the future development and design of this membrane technology 9 . One of the pioneer oxygen permeation models is the Wagner theory, which was derived based on bulk diffusion as the sole oxygen transport mechanism in the membrane 10 .…”

CO2‐resistant SDC‐SSAF oxygen selective dual‐phase hollow fiber membranes

“…23 The oxygen permeation fluxes through these membranes have also been modeled using the Zhu model, which is based on the individual membrane interfacial resistances. [24][25][26] The oxygen permeation behavior in 0.5-mm-thick SDC-SSAF disks was found to be limited by surface reactions between 800 C and 850 C and bulk diffusion above 875 C. 27,28 Between 850 C and 875 C, there exists a transition region consisting of mixed surface exchange and bulk diffusion influence.…”

“…Notably, asymmetric SDC‐SSAF disks have been reported to attain fluxes of up to 3.9 ml min −1 cm −2 at 950°C under oxygen partial pressure difference of 0.21 atm/0.005 atm with remarkable stability 23 . The oxygen permeation fluxes through these membranes have also been modeled using the Zhu model, which is based on the individual membrane interfacial resistances 24–26 . The oxygen permeation behavior in 0.5‐mm‐thick SDC‐SSAF disks was found to be limited by surface reactions between 800°C and 850°C and bulk diffusion above 875°C 27,28 .…”