rice hulls (#993)

ID-number#993
Materialrice hulls
Classification ECN Phyllis classification ▸ husk/shell/pit ▸ rice ▸ rice hulls
NTA 8003 classification ▸ [500] biomassa uit de industrie ▸ [520] schillen/vliezen/pitten ▸ [523] rijstvliezen
Ash typeASTM D1102 600 oC
Submitter organisationECN (Netherlands)
RemarksCalifornia, Woodland Biomass
LiteratureT. R. Miles, T. R. Miles,Jr, L. Baxter, R. W. Bryers, B. M. Jenkins and L. L. Oden: Alkali deposits found in biomass power plants. A preliminary investigation of their extend and nature, NREL/TP-433-8142, 82 p. (1995).

Values

Property Unit Value Std dev Det lim Lab Date Method Remarks
ar dry daf

Fuel Properties

Proximate Analysis

Moisture content wt% 10.94
Ash content wt% 18.04 20.26
Volatile matter wt% 56.57 63.52 79.66
Fixed carbon wt% 14.45 16.22 20.34 Calculated

Ultimate Analysis

Carbon wt% 34.58 38.83 48.70 Measured
Hydrogen wt% 4.23 4.75 5.96 Measured
Nitrogen wt% 0.46 0.52 0.65 Measured
Sulphur wt% 0.04 0.05 0.06 Measured
Oxygen wt% 31.59 35.47 44.48 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 12.92 14.81 18.57
Gross calorific value (HHV) MJ/kg 14.11 15.84 19.87
HHVMilne MJ/kg 13.32 14.96 18.76 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 1 068.7 1 200.0 1 504.9 Measured

Ash Properties

Ash composition

SO3 wt% (ash) 0.72
P2O5 wt% (ash) 0.43
SiO2 wt% (ash) 91.42
Fe2O3 wt% (ash) 0.14
Al2O3 wt% (ash) 0.78
CaO wt% (ash) 3.21
MgO wt% (ash) 0.01
Na2O wt% (ash) 0.21
K2O wt% (ash) 3.71
TiO2 wt% (ash) 0.02