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| Hauptseite > Publikationsdatenbank > Insights from module autopsy and post-test analysis of Jülich’s first Oxygen transport membrane reactor module |
| Hauptseite > Publikationsdatenbank > Insights from module autopsy and post-test analysis of Jülich’s first Oxygen transport membrane reactor module |
| Conference Presentation (After Call) | FZJ-2025-03656 |
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2025
Abstract: High-temperature membrane reactors employing mixed ionic electronic conducting (MIEC) membranes represent a promising approach for gas separation and many chemical synthesis routes which use thermal energy only instead of electricity.Oxygen transport membranes made of Fe-doped SrTiO₃ are a key component of these modules. This material was selected because of its favourable thermochemical properties and high oxygen permeation. The integration of the membranes into metallic reactors necessitate the precise alignment of the thermal expansion and chemical compatibility between all components. Sealants based on barium-calcium-silicate-glasses have proven to be a viable solution for joining and sealing, enabling gas-tight bonds between the membrane and metal, as well as between the metal components.The post-test investigation of the first Jülich membrane modules after their operational deployment provided comprehensive insights into the degradation processes that occur within the modules during their operational lifetime. This talk introduces the methodology of a membrane module autopsy and demonstrates the dismantling of a module for subsequent post-test analysis. Changes in the module components due to contact with corrosive gases at high temperatures will be shown. The results provide a basis for improving the durability and performance of membrane modules by optimizing material combinations, joining techniques, and module designs.
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