Study on the performance of electricity-heat-hydrogen integrated energy system with CO2 capture based on biomass gasification
An electricity-heat-hydrogen integrated energy system with CO2 capture based on biomass gasification is established,and the system coupled Fe-based chemical looping hydrogen generation(CLHG),chemical looping combustion(CLC)and combined-cycle gas turbines(CCGT).CLHG can produce hydrogen of high purity,CLC can realize combustion with CO2 separation and capture,and the CCGT is used for power generation and heat supply.The system model is built and calculated with Aspen Plus software.The efficiency of power,heat,and hydrogen are 16.4％,36.2％and 23.4％,respectively,and the CO2 capture efficiency can reach 65.3％.Furthermore,the effects of biomass gasification temperature,supplementary firing temperature,Fe3O4 recycle rate in CLHG,and the reactor temperature of CLC and CLHG on the efficiency of power,heat and hydrogen are investigated,which indicate that the supply of electricity-heat-hydrogen could be regulated flexibly.
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