Axial Concentration Profiles and NO Flue Gas in a Pilot-Scale Bubbling Fluidized Bed Coal Combustor
Tarelho, Lís A. C.; Matos, M A. A.; Pereira, F J. M. A.
Energy and Fuels 18(6): 1615-1624
ISSN/ISBN: 0887-0624 DOI: 10.1021/ef049940l
Atmospheric bubbling fluidized bed coal combustion of a bituminous coal and anthracite with particle diameters in the range 500−4000 μm was investigated in a pilot-plant facility. The experiments were conducted at steady-state conditions using three excess air levels (10, 25, and 50%) and bed temperatures in the 750−900 °C range. Combustion air was staged, with primary air accounting for 100, 80, and 60% of total combustion air. For both types of coal, high No concentrations were found inside the bed.