Two different wet sewage sludges have been characterized under fluidized bed combustion conditions with reference to their devolatilization behavior and ash comminution with the aid of different and complementary experimental protocols. Analysis of the devolatilization process allowed to determine the size of fuel particle able to achieve effective lateral spreading of the volatile matter across the cross-section of medium-scale combustors. Primary fragmentation and primary ash particle characterization pointed out the formation of a significant amount of relatively large fragments. The mechanical properties of these fragments have been characterized by means of elutriation/abrasion tests using both quartz and sludge ash beds.
Devolatilization and Ash Comminution Phenomena of Sewage Sludge during Fluidized Bed Combustion / R., Solimene; M., Urciuolo; A., Cammarota; R., Chirone; Salatino, Piero. - STAMPA. - 34:(2010), pp. 387-395. (Intervento presentato al convegno PTSE2010 - International Conference on “Processes and Technologies for a Sustainable Energy” tenutosi a ischia, italia nel 27/20 giugno 2010).
Devolatilization and Ash Comminution Phenomena of Sewage Sludge during Fluidized Bed Combustion
SALATINO, PIERO
2010
Abstract
Two different wet sewage sludges have been characterized under fluidized bed combustion conditions with reference to their devolatilization behavior and ash comminution with the aid of different and complementary experimental protocols. Analysis of the devolatilization process allowed to determine the size of fuel particle able to achieve effective lateral spreading of the volatile matter across the cross-section of medium-scale combustors. Primary fragmentation and primary ash particle characterization pointed out the formation of a significant amount of relatively large fragments. The mechanical properties of these fragments have been characterized by means of elutriation/abrasion tests using both quartz and sludge ash beds.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
