Page 197 - Advanced Gas Turbine Cycles

162 Advanced gas turbine cycles

AIR STEAM
SEPARATION FEED WATER
UNIT

4 TOSTACK
"CHEMICAL [MANFRIDA] OR
PHYSICAL [ CHIESA, LOZZA]
Fig. 8.25. Cycle E2. Open IGCC plant with shift reactor and C02 removal (after Chiesa and Consonni 131).

8.8. Summary

The performance of these novel plants may be assessed in relation to two objectives-
the attainment of good performance (high thermal efficiency and low cost of electricity
produced) and the effectiveness of CO2 removal, although the two may be coupled if a
C02 tax is introduced.

OXYGEN

AIR T

,I
I I

1
4 COOLER

Fig. 8.26. Cycle E3. Semi-closed IGCC plant with oxygen feed and C02 removal (after Chiesa and Lozza [ 181).