cotton stalks (#1451)

Materialcotton stalks
Classification ECN Phyllis classification ▸ grass/plant ▸ cotton ▸ cotton stalks
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [220] stro ▸ [229] overig stro
Submitter organisationECN (Netherlands)
Submission date1999-06-18
Remarksdevolatilisation occurs between 280 and 520°C, maximum rate at 390°C; oxygen content from Gaur and Reed, NREL/TP-433-7965
LiteratureP. D. Grover: Thermochemical characteristics of biomass residues for gasification, Indian Institute of Technology, Delhi, India (1989).


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

Main biomass properties

Proximate analysis

Moisture content wt% (ar)
Ash content wt% 6.68
Volatile matter wt% 70.89 75.96
Fixed carbon wt% 22.43 24.04 Calculated

Ultimate analysis (macroelements)

Carbon wt% 43.64 46.76 Measured
Hydrogen wt% 5.81 6.23 Measured
Oxygen wt% 43.87 47.01 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Heating value

Net calorific value (LHV) MJ/kg 16.99 18.21
Gross calorific value (HHV) MJ/kg 18.26 19.57
HHVMilne MJ/kg 17.20 18.43 Calculated

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 1 350
FT (fluid temperature) °C 1 420