The National Energy Technology Laboratory is investigating a new process for CO_2 capture from large sources such as utility power generation facilities as an alternative to liquid amine based absorption processes. Many, but not all of these advanced dry processes are based upon sorbents composed of supported polyamines. In this analysis, experiments have been conducted in a small facility at different temperatures and compared to CFD reactor predictions using kinetics obtained from TGA tests. This particular investigation compares the predicted performance and the experimental performance of one of these new classes of sorbents in a fluidized bed reactor. In this work, semi-batch experiments were conducted by flowing CO_2 from simulated flue gas through a fluidized bed of sorbent material. Experimental measurements of adsorption are compared to predictions from a 3-dimentionsional non-isothermal reacting multiphase flow model. The effects of the gas flow rate and reactor temperature are explored. It is shown that the time duration for CO_2 adsorption decreased for an increase in the gas flow. The details of the experimental facility and the model as well as the comparative analysis between the data and the simulation results are discussed.
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