in this paper, combustion of char in the riser of circulating fluidized bed was modeled using aspen plus. since physical and chemical phenomena are involved in the process, the model integrates the two-phase hydrodynamic sub-model with the reaction sub-model derived from the literature. in the proposed model, the fluidized bed is divided into several sections and the behavior of each section wa...

Packed bed reactors are common reactor types in chemical industries. In case of reactions with large heat effects, bundles slender tubes used. For such tubes, the column-to-particle diameter ratio, N, is small, which can give rise to significant flow channelling. This research uses two particle-scale numerical approaches, namely particle-resolved computational fluid dynamics (PR-CFD) and pore n...

Translucent photocatalytic reactor structures are interesting for the design of small and large scale reactors. Altering base element size structure impacts packing parameters. Decreasing increases available surface area which potential catalyst load per volume. However, a smaller number light scattering boundaries, resulting in higher energy loss. This work elaborates on influence absorption e...