(532g) Coal Pyrolysis Gas Chemical Looping Combustion and Hydrogen Production in a Packed Bed Reactor: The Performance of Iron-Based Oxygen Carrier Using Al2O3 and Coal Fly Ash As Supports

Chemical looping combustion (CLC) is a promising approach to efficient use of energy and  lost-cost capture of CO₂. In this study, a packed bad reactor was adopted to perform CLC tests on produced gas from coal pyrolysis. Al₂O₃ and coal fly ash were tested as the supports of an iron based oxygen carrier (OC) for both the combustion of coal pyrolysis gas and the production of hydrogen. The effects of different experimental parameters such as temperature, iron impregnate ratio, reactivity and duration of OC were investigated. Coal ash could be a cost-effective support for the OC used in this research.