KIT | KIT-Bibliothek | Impressum | Datenschutz

Development and Proof of Concept of a Compact Metallic Reactor for MIEC Ceramic Membranes

Escolástico, Sonia 1; Schulze-Küppers, Falk; Baumann, Stefan; Haas-Santo, Katja ORCID iD icon 1; Dittmeyer, Roland 1
1 Institut für Mikroverfahrenstechnik (IMVT), Karlsruher Institut für Technologie (KIT)


The integration of mixed ionic–electronic conducting separation membranes in catalytic membrane reactors can yield more environmentally safe and economically efficient processes. Concentration polarization effects are observed in these types of membranes when O$_{2}$ permeating fluxes are significantly high. These undesired effects can be overcome by the development of new membrane reactors where mass transport and heat transfer are enhanced by adopting state-of-the-art microfabrication. In addition, careful control over the fluid dynamics regime by employing compact metallic reactors equipped with microchannels could allow the rapid extraction of the products, minimizing undesired secondary reactions. Moreover, a high membrane surface area to catalyst volume ratio can be achieved. In this work, a compact metallic reactor was developed for the integration of mixed ionic–electronic conducting ceramic membranes. An asymmetric all-La$_{0.6}$Sr$_{0.4}$Co$_{0.2}$Fe$_{0.8}$O$_{3–δ}$ membrane was sealed to the metallic reactor by the reactive air brazing technique. O$_{2}$ permeation was evaluated as a proof of concept, and the influence of different parameters, such as temperature, sweep gas flow rates and oxygen partial pressure in the feed gas, were evaluated.

Verlagsausgabe §
DOI: 10.5445/IR/1000135864
Veröffentlicht am 30.07.2021
DOI: 10.3390/membranes11070541
Zitationen: 5
Web of Science
Zitationen: 5
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikroverfahrenstechnik (IMVT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2077-0375
KITopen-ID: 1000135864
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Erschienen in Membranes
Verlag MDPI
Band 11
Heft 7
Seiten Article no: 541
Vorab online veröffentlicht am 16.07.2021
Schlagwörter metallic compact reactors; MIEC membranes; catalytic membrane reactors; O2 separation
Nachgewiesen in Dimensions
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page