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Modeling and Parameter Identification for CO2 Post-Combustion Capture by Amines Supported on Solid Sorbents

pubblicazioni - Memoria

Modeling and Parameter Identification for CO2 Post-Combustion Capture by Amines Supported on Solid Sorbents

A partire da un modello dinamico fisico e da dati sperimentali di laboratorio, si identificano i principali parametri incogniti di un processo di cattura post-combustione della CO2, brevettato di recente da RSE, basato sull’adsorbimento, in un reattore a letto fisso, mediante un’ammina supportata su substrati solidi in forma di pellet.

A recently proposed technique for post-combustion CO2 capture in fixed-bed reactors is based on an adsorption procedure carried out by amine supported on pelleted solid substrates. This procedure is one of the most promising technologies, in particular because it is less energy intensive than absorption by amines in aqueous solutions.

With reference to a laboratory diabatic tubular reactor, a dynamic lumped-parameter model is worked out with physical reasoning. The main two unknown parameters in the model are the CO2 adsorption and desorption coefficients. These two parameters are identified by a two-step white-box technique. Identification is performed thanks to real data collected in laboratory experiments.

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