The current state of mixed ionic-electronic conducting ceramic membrane technology presents significant advancements with potential applications in various fields including solid oxide electrolyzers, fuel cells, hydrogen production, CO reduction, and membrane reactors for chemical production and oxygen separation. Particularly in oxygen separation applications, optimal conditions closely align with the conditions of oxygen-rich air streams emitted from the anode of solid oxide co-electrolyzers. This paper describes and analyzes a novel integrated heat recovery system based on mixed ionic-electronic conducting membranes. The system operates in two stages: firstly, oxygen is separated from the anode output stream using mixed ionic-electronic conducting membranes aided by a vacuum system, followed by the heat recovery process. Upon oxygen separation, the swept gas stream is recirculated at temperatures near thermoneutral conditions, resulting in performance improvements at both cell and system levels. Additionally, an oxygen stream is generated for various applications. An Aspen HYSYS model has been developed to calculate heat and material balances, demonstrating the efficiency enhancements of the proposed system configuration.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11013187 | PMC |
| http://dx.doi.org/10.3390/polym16070932 | DOI Listing |
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