Ion transport membranes technological

Advanced ion transport membrane technology for oxygen separation from air,... 

Dyer P N etal, 2000, Ion Transport Membrane Technology for Oxygen Separation and Syngas Production. Solid State Ionics, 134, 21-33. 

Dyer PN, Richards RE, Russek SL, and Taylor DM. Ion transport membrane technology for oxygen separation and S3mgas production. Solid State Ionics 2000 134 21-33. 

Siemens Power Generation is a partner with ConocoPhillips and Air Products and Chemicals, Inc., (APCI) to develop large-scale fuel cell systems based upon their gas turbine and SECA SOFC technologies. The design will use an ion transport membrane (ITM) oxygen air separation unit (ASU) from APCI with improved system efficiency. 

The materials are stable at very high temperatures (>500°C). A schematic illustration of the ion transport membrane (ITM) developed by Air Products is shown in Figure 7.30 [29]. Details on this technology can be found in Ref. [194]. The Danish company, Haldor Topsoe A/S, has presented a patented solution with an integrated ion-conducting membrane for autothermal steam reforming [195]—several other patents are announced. 

FIGURE 18.12 Inputs and outputs of an ITM system. (From Air Products and Chemicals, Inc., Development of ion transport membrane (ITM) oxygen technology for integration in IGCC and other advanced power generation systems, 2011, available from http //www.netl.doe.gov/publications/factsheets/project/... 

One disadvantage of microporous inorganic membranes is that they are porous. They can never produce 100% pure gas streams as can thin-film-palladium or ion-transport membranes. However, when microporous membranes are coupled with pressure swing adsorption (PSA), the combined system can produce 100% hydrogen. In this scenario, PSA would only be required to separate the final 1% of the impurities, and the coupling of the two technologies should result in a very compact and efficient separation system. 

Application in catalyst and inorganic membranes preparation. J. Mater. Chem. 1999 9 55-65 Guizard C., Julbe A. Nanophase ceramic ion transport membranes for oxygen separation and gas stream enrichment. In Recent Advances in Gas Separation by Microporous Ceramic Membranes, Kanellopoulos N.K., ed., Amsterdam Elsevier, 2000, pp. 435-471 Guizard C., Barboiu M., Bac A., Hovnanian N. Hybrid organic-inorganic membranes with specific transport properties. Applications in separation and sensors technology. Separ. Purif. Technol. 2001 25 167-180... 

Mafe, S Ramirez, P., Alcaraz, A. and Aguilella, V. (2000) Ion transport and water splitting in bipolar membranes, in Handbook Bipolar Membrane Technology (ed. A.J.B. Kemperman), Twente University Press, Endschede, The Netherlands. 

---