bark (#1908)

ID-number#1908
Materialbark
Classification ECN Phyllis classification ▸ untreated wood ▸ bark ▸ bark
NTA 8003 classification ▸ [100] hout ▸ [110] vers hout ▸ [112] schors
Ash type550°C
Submitter organisationECN (Netherlands)
Submission date2001-02-08
Remarkssame data in: Energy & Fuels 19 (2005) 825-832
LiteratureM. Öhman: A new method to quantify fluidized bed agglomeration in the combustion of biomass fuels. Licantiate thesis.Thesis, Umea University, 23 p. (1997).

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 9.40
Ash content wt% 2.72 3.00

Ultimate Analysis

Carbon wt% 46.75 51.60 53.20 Measured
Hydrogen wt% 5.44 6.00 6.19 Measured
Nitrogen wt% (dry) 0.10
Sulphur wt% 0.02 0.02 0.02 Calculated
Oxygen wt% 35.61 39.30 40.52 Calculated
Total (with halides) wt% 99.93 99.92 99.92 Calculated

Calorific Values

HHVMilne MJ/kg 18.82 20.77 21.41 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 27.2 30.0 30.9 Calculated

Physical Properties

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 1 340
SOT (softening or spherical temperature) °C 1 540
HT (hemispherical temperature) °C 1 540
FT (fluid temperature) °C 1 540

Ash Properties

Ash composition

CO2 wt% (ash) 26.10
SO3 wt% (ash) 1.40
Cl wt% (ash) 0.10
P2O5 wt% (ash) 2.70
SiO2 wt% (ash) 12.20
Fe2O3 wt% (ash) 1.10
Al2O3 wt% (ash) 1.80
CaO wt% (ash) 33.30
MgO wt% (ash) 3.70
Na2O wt% (ash) 0.50