wheat straw (#456)

ID-number#456
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 typelaboratory
Submitter organisationECN (Netherlands)
Literaturehttp://edv1.vt.tuwien.ac.at/AG_HOFBA/BIOBIB/Biobib.htm (1997).

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% (ar)
Ash content wt% 7.17

Ultimate Analysis

Carbon wt% 46.73 50.34 Unknown
Hydrogen wt% 5.17 5.57 Unknown
Nitrogen wt% 0.37 0.40 Unknown
Sulphur wt% 0.06 0.06 Unknown
Oxygen wt% 39.86 42.94 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 17.28 18.62
Gross calorific value (HHV) MJ/kg 18.41 19.83
HHVMilne MJ/kg 17.84 19.22 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 6 400.0 6 894.3 Unknown

Minor elements

Cadmium (Cd) mg/kg (dry) 0.1 Unknown
Copper (Cu) mg/kg (dry) 1.9 Unknown
Lead (Pb) mg/kg (dry) 0.1 Unknown
Mercury (Hg) mg/kg (dry) 0.0 Unknown

Physical Properties

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 820
SOT (softening or spherical temperature) °C 880
HT (hemispherical temperature) °C 1 050
FT (fluid temperature) °C 1 210

Ash Properties

Ash composition

CO2 wt% (ash) 0.80
SO3 wt% (ash) 1.47
Cl wt% (ash) 7.23
P2O5 wt% (ash) 2.05
SiO2 wt% (ash) 59.30
Fe2O3 wt% (ash) 0.11
Al2O3 wt% (ash) 0.16
CaO wt% (ash) 5.10
MgO wt% (ash) 2.22
Na2O wt% (ash) 0.11
K2O wt% (ash) 23.90
Pb mg/kg (ash) 1.0
Cd mg/kg (ash) 0.0
Cu mg/kg (ash) 16.0
Hg mg/kg (ash) 0.0