The document describes 5 novel power generation cycles that integrate oxygen mixed conducting membrane (OMCM) technology to enable CO2 capture. The cycles are evaluated thermodynamically. Concepts 1-3 achieve CO2 capture rates from 84-100% with efficiencies from 49-55%. Concepts 4-5 integrate air-blown gasification and achieve CO2 capture over 97% with efficiencies around 50-51%. The cycles represent different options for power plants with CO2 capture. Membrane stability issues led to the development being stopped.

1. Novel cycles for power generation with CO 2 capture using OMCM technology Rahul Anantharaman a , Olav Bolland a and Knut Åsen b a Department of Energy & Process Engineering Norwegian University of Science and Technology b StatoilHydro Research Center GHGT-9 Washington D.C.

4. CO 2 capture processes and systems

13. Concept 1 Cycle with MCM reactor 1275  C

14. Concept 1 Results Concept 1 Concept 2 Concept 3 Concept 4 Concept 5 Fuel thermal energy (MWth) 607.3 717.7 780.0 762.0 827.2 GT power output (MWe) 181.4 230.43 227.10 231.95 227.92 Steam turbine output(MWe) 125.5 162.45 161.28 164.97 161.42 Bleed gas turbine output (MWe) - - 61.25 - 62.85 CO 2 compression work (MWe) 4.5 4.53 14.43 7.39 22.18 Net power output (MWe) 299.4 392.87 429.74 383.05 423.49 Net Electric Efficiency (%) 49.3 53.34 55.10 50.27 51.2 Carbon capture rate (%)  100 84.3 84.92 97.51 98.2

15. Concept 2 Cycle with MCM reactor & Sequential burner 1425  C

16. Concept 2 Results Concept 1 Concept 2 Concept 3 Concept 4 Concept 5 Fuel thermal energy (MWth) 607.3 717.7 780.0 762.0 827.2 GT power output (MWe) 181.4 230.4 227.10 231.95 227.92 Steam turbine output(MWe) 125.5 162.5 161.28 164.97 161.42 Bleed gas turbine output (MWe) - - 61.25 - 62.85 CO 2 compression work (MWe) 4.5 4.5 14.43 7.39 22.18 Net power output (MWe) 299.4 392.9 429.74 383.05 423.49 Net Electric Efficiency (%) 49.3 53.3 55.10 50.27 51.2 Carbon capture rate (%) 100 84.3 84.92 97.51 98.2

17. Concept 2 Sensitivity of the additional firing before the turbine

18. Concept 3 Cycle with MCM reactor, Sequential burner & Bleed gas turbine 1 bar

19. Concept 3 Results 55.1% is without bleed gas turbine cooling With steam cooling, efficiency was calculated to 54.0% Concept 1 Concept 2 Concept 3 Concept 4 Concept 5 Fuel thermal energy (MWth) 607.3 717.7 780.0 762.0 827.2 GT power output (MWe) 181.4 230.4 227.1 231.95 227.92 Steam turbine output(MWe) 125.5 162.5 161.3 164.97 161.42 Bleed gas turbine output (MWe) - - 61.3 - 62.85 CO 2 compression work (MWe) 4.5 4.5 14.4 7.39 22.18 Net power output (MWe) 299.4 392.9 429.7 383.05 423.49 Net Electric Efficiency (%) 49.3 53.3 55.1 50.27 51.2 Carbon capture rate (%) 100 84.3 84.9 97.51 98.2

20. Concept 4 Cycle with MCM reactor, ATR & Sequential burner ATR CO 2 capture using MDEA, 2.0 MJ/kg CO 2

21. Concept 4 Results Concept 1 Concept 2 Concept 3 Concept 4 Concept 5 Fuel thermal energy (MWth) 607.3 717.7 780.0 762.0 827.2 GT power output (MWe) 181.4 230.4 227.1 232.0 227.92 Steam turbine output(MWe) 125.5 162.5 161.3 165.0 161.42 Bleed gas turbine output (MWe) - - 61.3 - 62.85 CO 2 compression work (MWe) 4.5 4.5 14.4 7.4 22.18 Net power output (MWe) 299.4 392.9 429.7 383.1 423.49 Net Electric Efficiency (%) 49.3 53.3 55.1 50.3 51.2 Carbon capture rate (%) 100 84.3 84.9 97.5 98.2

22. Concept 5 Cycle with MCM reactor, ATR, Sequential burner & Bleed gas turbine

23. Concept 5 Results Concept 1 Concept 2 Concept 3 Concept 4 Concept 5 Fuel thermal energy (MWth) 607.3 717.7 780.0 762.0 827.2 GT power output (MWe) 181.4 230.4 227.1 232.0 227.9 Steam turbine output(MWe) 125.5 162. 5 161.3 165.0 161.4 Bleed gas turbine output (MWe) - - 61.3 - 62.9 CO 2 compression work (MWe) 4.5 4.5 14.4 7.4 22.2 Net power output (MWe) 299.4 392.9 429.7 383.1 423.5 Net Electric Efficiency (%) 49.3 53.3 55.1 50.3 51.2 Carbon capture rate (%) 100 84.3 84.9 97.5 98.2

25. Concept Summary Represented in the CO 2 capture rate – Efficiency space

27. Thank you! TCCS-5 5 th Trondheim Conference on CCS