Integration of Oxygen Transport Membranes in an Igcc Power Plant with CO2 Capture

Oxygen transport membranes (OTMs) offer a promising technology for use in oxy-fuel and pre-combustion CO2 capture processes, for gasand coal power plants. OTMs are dense ceramic membranes which exhibit mixed conductivity of oxygen ions and electrons. This work presents systems considerations when integrating an OTM based ASU in an Integrated Gasification Combined Cycle (IGCC) plant with CO2 capture. An IGCC process using an OTM without sweep gas and 100 % air side integration with GT is presented. The OTM integrated IGCC shows an efficiency gain of 0.7 % points over the reference IGCC plant with cryogenic ASU.