knot grass (#632)

ID-number#632
Materialknot grass
Classification ECN Phyllis classification ▸ grass/plant ▸ other grass
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [210] gras ▸ [219] overig gras
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% 5.94

Ultimate Analysis

Carbon wt% 47.07 50.04 Unknown
Hydrogen wt% 5.41 5.75 Unknown
Nitrogen wt% 1.08 1.15 Unknown
Sulphur wt% 0.12 0.13 Unknown
Oxygen wt% 39.90 42.42 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 17.31 18.40
Gross calorific value (HHV) MJ/kg 18.50 19.66
HHVMilne MJ/kg 18.21 19.36 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 4 800.0 5 103.1 Unknown

Minor elements

Cadmium (Cd) mg/kg (dry) 0.0 Unknown
Copper (Cu) mg/kg (dry) 5.5 Unknown
Lead (Pb) mg/kg (dry) 0.4 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 740
SOT (softening or spherical temperature) °C 760
HT (hemispherical temperature) °C 1 660
FT (fluid temperature) °C 1 690

Ash Properties

Ash composition

CO2 wt% (ash) 24.30
SO3 wt% (ash) 2.58
Cl wt% (ash) 4.61
P2O5 wt% (ash) 3.40
SiO2 wt% (ash) 4.70
Fe2O3 wt% (ash) 0.39
Al2O3 wt% (ash) 0.50
CaO wt% (ash) 26.70
MgO wt% (ash) 3.22
Na2O wt% (ash) 0.32
K2O wt% (ash) 25.70
Pb mg/kg (ash) 3.0
Cd mg/kg (ash) 0.0
Cu mg/kg (ash) 65.0
Hg mg/kg (ash) 0.0