Multi-phase CFD modeling of solid sorbent carbon capture system

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 si...

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Bibliographic Details
Published in:Powder technology 2013-07, Vol.242, p.117-134
Main Authors: Ryan, E.M., DeCroix, D., Breault, R., Xu, W., Huckaby, E.D., Saha, K., Dartevelle, S., Sun, X.
Format: Article
Language:English
Subjects:
adsorption
Applied sciences
carbon
Carbon capture
carbon dioxide
Chemical engineering
Computational fluid dynamics
Exact sciences and technology
Fluidization
Fluidized bed
fluidized beds
hydrodynamics
Hydrodynamics of contact apparatus
Miscellaneous
Multi-phase
Reactive transport
Reactors
Solid-solid systems
temperature
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Summary: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.
ISSN:0032-5910
1873-328X
DOI:10.1016/j.powtec.2013.01.009