cotton gin waste (#382)

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ID-number#382
Materialcotton gin waste
Classification ECN Phyllis classification ▸ grass/plant ▸ cotton ▸ cotton gin waste
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [220] stro ▸ [229] overig stro
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% 10.30
Ash content wt% 8.40 9.36
Volatile matter wt% 73.70 82.16 90.64
Fixed carbon wt% 7.61 8.48 9.36 Calculated

Ultimate analysis (macroelements)
Carbon wt% 43.98 49.03 54.09 Measured
Hydrogen wt% 4.22 4.71 5.20 Measured
Oxygen wt% 31.47 35.08 38.70 Measured
Nitrogen wt% 1.30 1.45 1.60 Measured
Sulphur wt% 0.33 0.36 0.40 Measured
Total (with halides) wt% 99.99 99.99 99.99 Calculated

Heating value
Net calorific value (LHV) MJ/kg 13.42 15.24 16.82
Gross calorific value (HHV) MJ/kg 14.59 16.27 17.95
HHVMilne MJ/kg 16.56 18.46 20.36 Calculated

Ash melting behaviour

American standard method, measured in oxidizing conditions
HT (hemispherical temperature) °C 1 195

Ash Properties

Ash composition
SiO2 wt% (ash) 40.70
Fe2O3 wt% (ash) 3.30
Al2O3 wt% (ash) 4.30
CaO wt% (ash) 16.10
MgO wt% (ash) 8.00
K2O wt% (ash) 11.30