Devolatilization and ash comminution of two different sewage sludges under fluidized bed combustion conditions

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Experimental Thermal and Fluid Science

DOI:https://doi.org/10.1016/J.EXPTHERMFLUSCI.2009.10.033· OSTI ID:21285679

Solimene, R; Urciuolo, M; Cammarota, A; Chirone, R ^[1]; Salatino, P ^[1]; Damonte, G; Donati, C; Puglisi, G ^[2]

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1. Istituto di Ricerche sulla Combustione (IRC) - CNR, Napoli (Italy)
2. ECODECO Gruppo A2A, Giussago (PV) (Italy)

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. (author)

• OSTI ID: 21285679
• Journal Information: Experimental Thermal and Fluid Science, Journal Name: Experimental Thermal and Fluid Science Journal Issue: 3 Vol. 34; ISSN 0894-1777; ISSN ETFSEO
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABRASION
ASHES
Attrition
COMBUSTORS
COMMINUTION
DEVOLATILIZATION
ELUTRIATION
FLUIDIZED-BED COMBUSTION
FRAGMENTATION
FUEL PARTICLES
MECHANICAL PROPERTIES
PARTICLES
SEWAGE SLUDGE
SIZE
VOLATILE MATTER
Wet sewage sludge