Integrated gasification fuel cell power generation technology with CO2 near zero emission and its challenges

Integrated gasification fuel cell (IGFC) power generation is a novel coal power technology,which could greatly improve the efficiency of coal to electricity and achieve zero emission of CO2 and pollutants.This paper first introduces the principle,advantages and status of the IGFC technology,and investigates the technical progress in high temperature fuel cell at home and abroad.The IGFC project status of the national key R & D program is also introduced.Subsequently,a model for syngas fuel cell power generation system is built using Aspen software,and the MWth IGFC demonstration system is simulated and analyzed using the model.Simulation results for syngas fuel cell power system are also compared with the natural gas fuel cell power system.Finally,according to the current research progress,the main technical challenges for the IGFC system with CO2 near zero emission are summarized,including stack development,multi-stack module design,exhaust gas combustion,heat recovery and system control,etc.,which could provide guidance for the development and demonstration of the MWth level IGFC system.