wheat straw (#990)

ID-number#990
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 600 oC
Submitter organisationECN (Netherlands)
RemarksElkraft, Denmark
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% 17.41
Ash content wt% 3.21 3.89
Volatile matter wt% 67.10 81.24 84.53
Fixed carbon wt% 12.28 14.87 15.47 Calculated

Ultimate Analysis

Carbon wt% 39.27 47.55 49.47 Measured
Hydrogen wt% 4.84 5.86 6.10 Measured
Nitrogen wt% 0.49 0.59 0.61 Measured
Sulphur wt% 0.07 0.09 0.09 Measured
Oxygen wt% 34.56 41.85 43.54 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 13.70 17.11 17.80
Gross calorific value (HHV) MJ/kg 15.19 18.39 19.13
HHVMilne MJ/kg 15.54 18.82 19.58 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 1 404.0 1 700.0 1 768.8 Measured

Ash Properties

Ash composition

SO3 wt% (ash) 2.49
P2O5 wt% (ash) 4.30
SiO2 wt% (ash) 55.32
Fe2O3 wt% (ash) 1.05
Al2O3 wt% (ash) 0.84
CaO wt% (ash) 12.27
MgO wt% (ash) 2.48
Na2O wt% (ash) 1.51
K2O wt% (ash) 12.90
TiO2 wt% (ash) 0.22