sunflower seed husk (#378)

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ID-number#378
Materialsunflower seed husk
Classification ECN Phyllis classification ▸ husk/shell/pit ▸ sunflower ▸ sunflower seed husk
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [230] restproducten (doppen) ▸ [239] overige doppen
Ash type ashed at 815 degC
Submitter organisationECN (Netherlands)
RemarksUSA
LiteratureN. Magasiner and J. W. de Kock: Design criteria for fibrous fuel fired boilers. Energy World (8-9) pp. 4-12 (1987).

Values

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

Main biomass properties

Proximate analysis
Moisture content wt% 10.50
Ash content wt% 3.80 4.25
Volatile matter wt% 66.10 73.85 77.12
Fixed carbon wt% 19.60 21.90 22.88 Calculated

Ultimate analysis (macroelements)
Carbon wt% 43.79 48.93 51.10 Measured
Hydrogen wt% 5.40 6.03 6.30 Measured
Oxygen wt% 35.57 39.74 41.50 Calculated
Nitrogen wt% 0.77 0.86 0.90 Measured
Sulphur wt% 0.17 0.19 0.20 Measured
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Heating value
Net calorific value (LHV) MJ/kg 16.45 18.67 19.50
Gross calorific value (HHV) MJ/kg 17.89 19.98 20.87
HHVMilne MJ/kg 17.67 19.74 20.61 Calculated

Ash melting behaviour

American standard method, measured in oxidizing conditions
IDT (initial deformation temperature) °C 940
HT (hemispherical temperature) °C 980
FT (fluid temperature) °C 1 020

Ash Properties

Ash composition
SiO2 wt% (ash) 1.70
Fe2O3 wt% (ash) 0.60
Al2O3 wt% (ash) 0.10
CaO wt% (ash) 9.20
MgO wt% (ash) 7.20
Na2O wt% (ash) 0.40
K2O wt% (ash) 39.30