untreated rice (#766)

ID-number#766
Materialuntreated rice
Classification ECN Phyllis classification ▸ straw (stalk/cob/ear) ▸ rice
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [220] stro ▸ [224] rijsthalm
Ash type2 h at 575 degC
Submitter organisationECN (Netherlands)
Remarks imperial valley source
LiteratureB. M. Jenkins, R. R. Bakker and J. B. Wei: On the properties of washed straw. Biomass and Bioenergy 10 (4) pp. 177-200 (1996).

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% 18.63

Ultimate Analysis

Carbon wt% 37.95 46.64 Measured
Hydrogen wt% 4.80 5.90 Measured
Nitrogen wt% 0.52 0.64 Measured
Sulphur wt% 0.09 0.11 Measured
Oxygen wt% 37.27 45.80 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 14.20 17.45
Gross calorific value (HHV) MJ/kg 15.25 18.74
HHVMilne MJ/kg 14.53 17.85 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 7 400.0 9 094.3 Measured

Major elements

Potassium (K) mg/kg (dry) 17 500.0 Measured
Sodium (Na) mg/kg (dry) 2 600.0 Measured
Calcium (Ca) mg/kg (dry) 2 100.0 Measured
Magnesium (Mg) mg/kg (dry) 2 100.0 Measured
Phosphorus (P) mg/kg (dry) 2 200.0 Measured

Ash Properties

Ash composition

SO3 wt% (ash) 0.84
P2O5 wt% (ash) 2.65
SiO2 wt% (ash) 74.31
Fe2O3 wt% (ash) 0.73
Al2O3 wt% (ash) 1.40
CaO wt% (ash) 1.61
MgO wt% (ash) 1.89
Na2O wt% (ash) 1.85
K2O wt% (ash) 11.30
TiO2 wt% (ash) 0.02