Principles of Dense Ceramic Membrane Reactors

The dense ceramic membranes applied in MRs can be either MIECs or pure ionic conductors (electrolytes). In the MIEC-MRs, the membrane itself serves as the internal circuit for electron transport, whereas an external circuit for electron transport has to be provided in the pure ionic conductor MRs (EMRs). The principles of the dense ceramic MRs are illustrated schematically in Eigure 5.5. 

MIEC membrane reactors (MIEC-MRs). In an MIEC-MR, oxygen permeates through the membrane under the oxygen partial pressure gradient at high temperatures without the need for electrodes 

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Figure 5.5 Principles of dense ceramic membrane reactors (a) electrochemical pump membrane reactor (EP-MR) (b) solid oxide fuel cell membrane reactor (SOEC-MR) (c) mixed ionic-electronic conducting membrane reactor (MIEC-MR).

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