Kraft black liquor from spruce wood (#943)
| ID-number | #943 |
|---|---|
| Material | Kraft 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 type | Ash content not mentioned in article, it is calculated from given concentrations |
| Submitter organisation | ECN (Netherlands) |
| Remarks | Spruce 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 |
| Literature | J. 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 | ||||||||||||||||||
Main biomass properties |
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Proximate analysis |
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| Moisture content | wt% (ar) | |||||||||||||||||||
| Ash content | wt% | 19.30 | ||||||||||||||||||
Ultimate analysis (macroelements) |
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| Carbon | wt% | 34.20 | 42.38 | Measured | ||||||||||||||||
| Hydrogen | wt% | 4.10 | 5.08 | Measured | ||||||||||||||||
| Oxygen | wt% | 38.00 | 47.09 | Calculated | ||||||||||||||||
| Nitrogen | wt% | 0.20 | 0.25 | Measured | ||||||||||||||||
| Sulphur | wt% | 4.00 | 4.96 | Measured | ||||||||||||||||
| Total (with halides) | wt% | 100.00 | 100.00 | Calculated | ||||||||||||||||
Halides |
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| Chlorine (Cl) | mg/kg | 2 000.0 | 2 478.3 | Measured | ||||||||||||||||
Heating value |
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| HHVMilne | MJ/kg | 12.53 | 15.53 | Calculated | ||||||||||||||||
Trace elements composition |
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| Potassium (K) | mg/kg (dry) | 700.0 | Measured | |||||||||||||||||
| Sodium (Na) | mg/kg (dry) | 186 000.0 | Measured | |||||||||||||||||