wheat straw (#476)

ID-number#476
Materialwheat straw
Classification ECN Phyllis classification ▸ straw (stalk/cob/ear) ▸ wheat ▸ wheat straw
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [220] stro ▸ [223] tarwestro
Ash typeASTM D1102; 600C ASTM D 1102, 600 Degree Celcius
Submitter organisationECN (Netherlands)
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% 13.01
Ash content wt% 8.31 9.55
Volatile matter wt% 61.86 71.11 78.62
Fixed carbon wt% 16.82 19.34 21.38 Calculated

Ultimate Analysis

Carbon wt% 37.32 42.90 47.43 Measured
Hydrogen wt% 4.45 5.11 5.65 Measured
Nitrogen wt% 0.46 0.53 0.59 Measured
Sulphur wt% 0.25 0.29 0.32 Measured
Oxygen wt% 34.41 39.56 43.74 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 13.35 15.71 17.37
Gross calorific value (HHV) MJ/kg 14.64 16.83 18.61
HHVMilne MJ/kg 14.32 16.46 18.20 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 17 919.9 20 600.0 22 775.0 Measured

Ash Properties

Ash composition

SO3 wt% (ash) 4.44
P2O5 wt% (ash) 2.04
SiO2 wt% (ash) 37.06
Fe2O3 wt% (ash) 0.84
Al2O3 wt% (ash) 2.23
CaO wt% (ash) 4.91
MgO wt% (ash) 2.55
Na2O wt% (ash) 9.74
K2O wt% (ash) 21.70
TiO2 wt% (ash) 0.17