walnut hulls and blows (#997)

ID-number#997
Materialwalnut hulls and blows
Classification ECN Phyllis classification ▸ husk/shell/pit ▸ walnut
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [230] restproducten (doppen) ▸ [234] (wal)noten
Ash typeASTM D1102 600 oC
Submitter organisationECN (Netherlands)
RemarksMarysville, CA, Sithe
LiteratureT. R. Miles, T. R. Miles,Jr, L. Baxter, R. W. Bryers, B. M. Jenkins and L. L. Oden: Alkali deposits found in biomass power plants. A preliminary investigation of their extend and nature, NREL/TP-433-8142, 82 p. (1995).

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 47.85
Ash content wt% 1.54 2.95
Volatile matter wt% 41.50 79.58 82.00
Fixed carbon wt% 9.11 17.47 18.00 Calculated

Ultimate Analysis

Carbon wt% 27.91 53.51 55.14 Measured
Hydrogen wt% 3.40 6.52 6.72 Measured
Nitrogen wt% 0.80 1.53 1.58 Measured
Sulphur wt% 0.06 0.11 0.11 Measured
Oxygen wt% 18.44 35.36 36.43 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 9.66 20.77 21.40
Gross calorific value (HHV) MJ/kg 11.57 22.19 22.87
HHVMilne MJ/kg 11.68 22.40 23.08 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 104.3 200.0 206.1 Measured

Ash Properties

Ash composition

SO3 wt% (ash) 2.25
P2O5 wt% (ash) 6.24
SiO2 wt% (ash) 6.88
Fe2O3 wt% (ash) 1.14
Al2O3 wt% (ash) 2.42
CaO wt% (ash) 16.62
MgO wt% (ash) 13.45
Na2O wt% (ash) 0.99
K2O wt% (ash) 32.90
TiO2 wt% (ash) 0.09