Performance of fuel reactor in a chemical looping combustion system with different oxygen carriers

The key purpose of the present research work is to numerically simulate the bubble hydrodynamics in the fuel reactor of a chemical looping combustion (CLC) framework. This analysis gives an insightful understanding of the generation, growth, rise, development and burst of bubbles inside the fuel reactor. In the present research work, natural gas (CH4) has been utilized as the fuel though NiO and CuO have been utilized as the oxygen carrier particles individually. A commercial computational fluid dynamics (CFD) code has been utilized as a part of which the kinetic theory of granular flow has been considered and the kinetics of an oxygen carrier has been linked into the reactive fluid dynamic system through a user defined function (UDF). The transient bubble dynamics, solid volume fraction and the conversion rate of natural gas fuel are differentiated for the fuel reactor with NiO and CuO as the oxygen carrier particles.