N₂O and NO Emissions from CFBC Cofiring Dried Sewage Sludge, Wet Sewage Sludge with Coal and PE

Table 1

Properties of sewage sludge and coal.

	Coal	Dried sewage sludge	Wet sewage sludge	PE
Ultimate analysis (wt%, dry ash free basis)
Carbon	83.21	54.96	53.44	85.71
Hydrogen	4.55	6.84	7.75	14.29
Oxygen	9.48	26.81	29.63
Sulfur	1.52	3.24	3.01
Nitrogen	0.84	8.15	6.17
Chlorine	0.04	0.48	0.48
Calcium	0.36	4.37	4.10
Ca/(S + 0.5Cl) molar ratio	0.19	1.01	1.02
LHV (MJ/kg)	25.87	12.81	0.64	46.34
Proximate analysis (wt%, as received basis)
Moisture	4.54	7.40	76.28	—
Ash	15.10	35.16	11.70	—
Volatile	24.60	47.40	11.67	—
Fixed carbon	55.76	10.04	0.36	—