FBC processes enable in situ SO2 removal, but generate large amounts of wastes difficult to reuse and landfill. The steam hydration/reactivation of the desulphurizing ability of these residues is considered a viable recycling pathway. A lab-scale investigation has been performed to correlate their chemical and physical properties with hydration operating conditions such as temperatures and times. It has been found that the reactivation process was able to give products with an improved overall accessible porosity, induced by both the extent of the reactions and the nature of the hydrated phases (calcium hydroxide and, secondarily, ettringite).
Steam reactivation of the SO2 capture ability of fluidized bed combustion wastes / M., Nobili; A., Telesca; G. L., Valenti; Montagnaro, Fabio; Santoro, Luciano; Salatino, Piero. - STAMPA. - (2007), pp. 182-1-182-6. (Intervento presentato al convegno 8th International Conference on Chemical and Process Engineering, Chemical Engineering Transactions tenutosi a Ischia, Italy nel 24-27 Giugno).
Steam reactivation of the SO2 capture ability of fluidized bed combustion wastes
MONTAGNARO, FABIO;SANTORO, LUCIANO;SALATINO, PIERO
2007
Abstract
FBC processes enable in situ SO2 removal, but generate large amounts of wastes difficult to reuse and landfill. The steam hydration/reactivation of the desulphurizing ability of these residues is considered a viable recycling pathway. A lab-scale investigation has been performed to correlate their chemical and physical properties with hydration operating conditions such as temperatures and times. It has been found that the reactivation process was able to give products with an improved overall accessible porosity, induced by both the extent of the reactions and the nature of the hydrated phases (calcium hydroxide and, secondarily, ettringite).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
