wheat straw (#760)

ID-number#760
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
Sample lot size15 x 2 x 0.3 mm
Ash typegasifier was used to prepare (700 degree Celcius) ash
Submitter organisationECN (Netherlands)
LiteratureA. E. Ghaly, A. Ergüdenler and E. Laufer: Agglomeration characteristics of alumina sand-straw ash mixtures at elevated temperatures. Biomass and Bioenergy 5 (6) pp. 467-480 (1993).

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 10.50
Ash content wt% 3.05 3.41
Volatile matter wt% 70.53 78.80 81.58
Fixed carbon wt% 15.92 17.79 18.42 Calculated

Ultimate Analysis

Carbon wt% 41.14 45.97 47.59 Measured
Hydrogen wt% 5.17 5.78 5.98 Measured
Nitrogen wt% 0.49 0.55 0.57 Measured
Sulphur wt% 0.11 0.12 0.12 Measured
Oxygen wt% 39.51 44.15 45.71 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 16.49 18.71 19.37
Gross calorific value (HHV) MJ/kg 17.87 19.97 20.68
HHVMilne MJ/kg 16.03 17.91 18.54 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 179.0 200.0 207.1 Measured

Physical Properties

Commonly used properties

Bulk density (daf) kg/m³ (daf) 78

Ash Properties

Ash composition

SO3 wt% (ash) 2.47
P2O5 wt% (ash) 6.50
SiO2 wt% (ash) 27.26
Fe2O3 wt% (ash) 0.76
Al2O3 wt% (ash) 0.73
CaO wt% (ash) 10.79
MgO wt% (ash) 4.19
Na2O wt% (ash) 0.97
K2O wt% (ash) 36.15