Kraft black liquor from spruce wood (#943)

ID-number#943
MaterialKraft black liquor from spruce wood
Classification ECN Phyllis classification ▸ organic residue/product ▸ black liquor
NTA 8003 classification ▸ [500] biomassa uit de industrie ▸ [590] reststoffen niet VGI ▸ [594] black liquor
Ash typeAsh content not mentioned in article, it is calculated from given concentrations
Submitter organisationECN (Netherlands)
RemarksSpruce wood chips + Na2S and NaOH at 170 degC resulted in 49% pulp yield (Kappa number = 30), The liquor was subsequently oxidized under 200 psig oxygen and 130 degC
LiteratureJ. Li and R. P. van Heiningen: Kinetics of CO2 gasification of fast pyrolysis black liquor char. Ind. Eng. Res. (29) pp. 1776-1785 (1990).

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% 19.30

Ultimate Analysis

Carbon wt% 34.20 42.38 Measured
Hydrogen wt% 4.10 5.08 Measured
Nitrogen wt% 0.20 0.25 Measured
Sulphur wt% 4.00 4.96 Measured
Oxygen wt% 38.00 47.09 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Calorific Values

HHVMilne MJ/kg 12.53 15.53 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 2 000.0 2 478.3 Measured

Major elements

Potassium (K) mg/kg (dry) 700.0 Measured
Sodium (Na) mg/kg (dry) 186 000.0 Measured