Simulation of the Sorption-Enhanced Steam Methane Reforming Process Operated in Fluidized Bed Reactors: A Dynamic One-Dimensional Two-Fluid Model

The aim of the study described in this paper is to derive a fluidised bed reactor model that improve the description of the reactor performance relative to the KuniiLevenspiel type of models frequently used in chemical reactor engineering. The classical SIMPLE algorithm is extended to compressible multiphase reactive flows. The suggested one-dimensional Eulerian–Eulerian two-fluid model is applied to investigate the reactive gas–solid flows of the SE-SMR processes. Whereas the Kunii-Levenspiel models generally assumes a prescribed solid flux within the fluidised bed reactors, the two-fluid model derived in this study serves as highly relevant in the progress of commercial reactors for processes such as the novel SE-SMR technology because the solid flux incorporated in the two-fluid model allows for dynamic modeling of interconnected fluidized bed reactors. Moreover, the twoand three dimensional two-fluid models are yet too computational demanding due to the complexity of the gas–solid flow in the bed. Hence, these models are not efficient for studies of the processes such as the SE-SMR technology where the solid particles are transferred between reactor units for utilization and recover of the characteristic solid property, i.e. CO 2 -capture and CO 2 -release.