wood, willow (#947)

ID-number#947
Materialwood, willow
Descriptionpulverized
Classification ECN Phyllis classification ▸ untreated wood ▸ willow ▸ wood, willow
NTA 8003 classification ▸ [100] hout ▸ [110] vers hout ▸ [120] loofhout ▸ [122] zacht loofhout
Ash typeashed at 500 degC at reducing atmosphere
Submitter organisationECN (Netherlands)
LiteratureJ. B. Illerup and O. Rathmann: CO2 gasification of wheat straw, barley straw, willow and giganteus, Rosoe, Denmark, Risoe-R-873(EN), 32 p. (1996).

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 11.10
Ash content wt% 1.87 2.10
Volatile matter wt% 69.88 78.60 80.29
Fixed carbon wt% 17.16 19.30 19.71 Calculated

Ultimate Analysis

Carbon wt% 43.83 49.30 50.36 Measured
Hydrogen wt% 5.87 6.60 6.74 Measured
Nitrogen wt% 0.98 1.10 1.12 Measured
Sulphur wt% 0.09 0.10 0.10 Measured
Oxygen wt% 36.24 40.77 41.64 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 16.37 18.72 19.12
Gross calorific value (HHV) MJ/kg 17.92 20.16 20.59
HHVMilne MJ/kg 18.21 20.49 20.93 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 293.4 330.0 337.1 Measured

Major elements

Potassium (K) mg/kg (dry) 3 800.0 Measured
Sodium (Na) mg/kg (dry) 510.0 Measured

Physical Properties

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 1 110
HT (hemispherical temperature) °C 1 470
FT (fluid temperature) °C 1 500

Ash Properties

Ash composition

CO2 wt% (ash) 18.00
SO3 wt% (ash) 1.50
Cl wt% (ash) 0.11
P2O5 wt% (ash) 9.30
SiO2 wt% (ash) 15.00
Fe2O3 wt% (ash) 0.92
Al2O3 wt% (ash) 1.60
CaO wt% (ash) 32.00
MgO wt% (ash) 3.00
Na2O wt% (ash) 2.60
K2O wt% (ash) 17.00