wheat straw, fraction > 1mm (#1966)

ID-number#1966
Materialwheat straw, fraction > 1mm
Classification ECN Phyllis classification ▸ straw (stalk/cob/ear) ▸ wheat
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [220] stro ▸ [223] tarwestro
Submitter organisationECN (Netherlands)
Submission date2001-02-21
RemarksCl calculated from ash (assuming CL in biomass/Cl in ash = 3, like for ID 1764); ash sintering starts at 750°C, at 800°C hard fused material
LiteratureKoukios,E.G.; Arvelakis,S.; Georgali,B.: Physico-chemical upgrading of agroresidues as solid biofuels; Proc. 4th biomass conference of the Americas, p.299-304

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 7.50
Ash content wt% 4.66 5.04
Volatile matter wt% 71.44 77.23 81.33
Fixed carbon wt% 16.40 17.73 18.67 Calculated

Ultimate Analysis

Carbon wt% 44.22 47.80 50.34 Measured
Hydrogen wt% 5.57 6.02 6.34 Measured
Nitrogen wt% 0.58 0.63 0.66 Measured
Sulphur wt% 0.23 0.25 0.26 Measured
Oxygen wt% 36.95 39.95 42.07 Calculated
Total (with halides) wt% 100.13 100.14 100.15 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 16.79 18.35 19.32
Gross calorific value (HHV) MJ/kg 18.19 19.66 20.70
HHVMilne MJ/kg 17.89 19.34 20.36 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 4 162.5 4 500.0 4 738.8 Calculated

Ash Properties

Ash composition

SO3 wt% (ash) 5.90
Cl wt% (ash) 2.98
SiO2 wt% (ash) 38.50
Al2O3 wt% (ash) 1.73
CaO wt% (ash) 4.43
MgO wt% (ash) 0.92
Na2O wt% (ash) 3.30
K2O wt% (ash) 13.12