Research on the Reactivity of Oxygen Carrier Fe2O3 for Chemical Looping Combustion (CLC)

Chemical looping combustion (CLC) was a promising combustion technology with inherent separation of CO₂. In this paper, thermodynamic equilibrium approach was used to investigate the reactions between CO or biomass gas and oxygen carrier Fe₂O₃, and experiments were carried out in a laboratory fluidized bed reactor. The results showed that when temperature was below 1000 K, the carbon deposition on oxygen carrier was serious. When CO was used as fuel, the highest gas yield of CO to carbon dioxide reached to 99.5% at 1153 K. And when biomass gas was used as fuel, the highest gas yield of biomass gas to carbon dioxide was almost 75% at 1113 K.