Effect of Temperature on the Hydrodynamics of Steam Reactor in a Chemical Looping Reforming System

A cost-effective carbon capture and storage process has been addressed by using a three-reactor chemical looping reforming technology (CLR) that produces hydrogen in an innovative manner. Ansys FLUENT is used to model the steam reactor based on kinetic theory of granular flow. A user-defined function has been implemented for customizing the reactive fluid dynamics system by incorporating the oxidation kinetic of the metal oxide. In the current work, iron oxide and manganese oxide are used as oxygen carriers with steam as the fuel for the reaction kinetic model. The development, up-surging, growing and bursting of bubbles in the steam reactor are observed. Unsteady and quasi-steady bubble hydrodynamics in steam reactor are captured through numerical simulations, and the relationship between molar fraction of products and gas phases and bubble formation are investigated at different temperatures. Solid volume fraction contour has also been qualitatively compared with similar results available in open literature.