IG-SOFC/GT (Integrated Gasification Solid Oxide Fuel Cell/Gas Turbine) power generation systems considering CO₂ separation are devised and their performances are analyzed and compared with IGCC and various IG-SOFC/GT systems. First, the modeling of ...
IG-SOFC/GT (Integrated Gasification Solid Oxide Fuel Cell/Gas Turbine) power generation systems considering CO₂ separation are devised and their performances are analyzed and compared with IGCC and various IG-SOFC/GT systems. First, the modeling of the IGCC system combining a gasifier block and G-class gas turbine based power block is performed on the basis of an open literature. Then, IG-SOFC/GT systems are designed through the integration of a SOFC and the IGCC system. Two system configurations, differing in the disposal of nitrogen separated from the air separation unit, are compared. Finally, IG-SOFC/GT systems considering two CO₂ separation methods are compared. General conclusion is that almost all IG-SOFC/GT system can produce much larger power with a higher efficiency than IGCC system, and IG-SOFC/GT system with oxy combustion exhibits a better system efficiency but produces lower power than the system using pre-combustion .