|Title||Multi-phase CFD modeling of solid sorbent carbon capture system|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Ryan EM, DeCroix DS, Breault R, Xu W, E. Huckaby D, Saha K, Dartevelle S, Sun X|
|Type of Article||Journal Article dcm|
|Keywords||carbon capture, Computational fluid dynamics, Fluidized bed, Multi-phase, Reactive transport|
Computational fluid dynamics (CFD) simulations are used to investigate a low temperature post-combustion carbon capture reactor. The CFD models are based on a small scale solid sorbent carbon capture reactor design from ADA-ES and Southern Company. The reactor is a fluidized bed design based on a silica-supported amine sorbent. CFD models using both Eulerian–Eulerian and Eulerian–Lagrangian multi-phase modeling methods are developed to investigate the hydrodynamics and adsorption of carbon dioxide in the reactor. Models developed in both FLUENT® and BARRACUDA are presented to explore the strengths and weaknesses of state of the art CFD codes for modeling multi-phase carbon capture reactors. The results of the simulations show that the FLUENT® Eulerian–Lagrangian simulations (DDPM) are unstable for the given reactor design; while the BARRACUDA Eulerian–Lagrangian model is able to simulate the system given appropriate simplifying assumptions. FLUENT® Eulerian–Eulerian simulations also provide a stable solution for the carbon capture reactor given the appropriate simplifying assumptions.