Cerca nel sito per parola chiave

pubblicazioni - Articolo

A post-combustion carbon capture process by amines supported on solid pellets – with estimation of kinetic parameters

pubblicazioni - Articolo

A post-combustion carbon capture process by amines supported on solid pellets – with estimation of kinetic parameters

L’articolo descrive un modello dinamico di un processo di cattura della CO2 da una corrente gassosa basato su ammine ancorate su un supporto solido mesoporoso (sorbente solido), l’identificazione dei parametri incogniti del modello, funzioni della temperatura, e la validazione a fronte di dati sperimentali.

A dynamic model is worked out for a process for CO2 capture from a gas mixture flowing through a fixed-bed reactor, by adsorption on amine supported on pelleted solid mesoporous substrates (solid sorbent). Two fundamental uncertain parameters in the model are the CO2 adsorption and desorption reaction kinetic coefficients, which depend on temperature and which are estimated from data collected in a campaign of experiments performed on a diabatic tubular reactor in a laboratory plant: first, their ratio is identified by means of steady-state data; subsequently, by resorting to transient data, the two parameters are separately estimated. .

The obtained model is validated with satisfactory results. Finally, a method is proposed to automatically update the estimate of the identified model parameters, since constant wear during the reactor operating life may cause that estimate to become obsolete in the long run.

Progetti

Commenti