Numerical Analyses of Heterogeneous CLC Reaction and Transport Processes in Large Oxygen Carrier Particles

Heterogeneous chemical looping combustion (CLC) reactions and conjugate transports in large oxygen carrier particles were numerically investigated with computational fluid dynamics (CFD) approaches, which a simplified noncatalytic reaction model was implemented for reducing intraparticle modelling computation. Volumic gas-solid treated as surface based on the equivalent internal particle model. In porous such fixed bed CLC reactors, heterogeneous are often limited by diffusion. Comprehensive analyses conducted across their influences inside single particles. A threshold Reynolds number of external convections found enhancement reactions. The reactions, diffusions interstitial reactor randomly packed 597 spheres thoroughly analysed same numerical approaches. insights temporal evolution spatial distribution scalars presented.