EFFECT ON SO2 AND NOx EMISSION BY LIMESTONE DESULPHURIZATION IN PULVERIZED -COAL BOILERS[J]. Thermal power generation, 1998, (3): 4-8. DOI: 10.19666/j.rlfd.1998.03.001.
The effect on SO 2 and NO x emission by limestone desulphurization in pulverized-coal was studied.The experiments show that SO 2 and NO x emission is strongly dependent upon various factors
shch as furnace temperature
Ca/S molar ratio
particle size of sorbent
coal type
excess air coefficient
etc.Due to the strong catalytic activity of calcium species derived from limestone
it often leads to an increasement of NO
x
emission.However
this is strongly dependent upon coal type.NO
x
emission doesn’t increase or even decrease in case of some low volatile coals.