Extension and evaluation of a macroscopic model for syngas-fueled chemical looping combustion

A macroscopic model was extended to the simulation of the bubbling fluidized fuel reactor of a 500 Wth continuous syngas-CLC facility. Behaviors of emulsion phase, bubble phase and freeboard were focused for the formulation of the reactor model. Good agreements of experiments and modeling results were achieved. After thorough simulation under various operation conditions, the macroscopic model exhibits satisfactory flexibility to different reaction environments. Based on the modeling, optimized operation regions for almost full syngas combustion with the lowest oxygen carrier inventory was developed.