Research Article
Hydrothermal Upgrading of Korean MSW for Solid Fuel Production: Effect of MSW Composition
Table 2
Proximate and ultimate analysis results of paper and kimchi and their products.
| | Paper | Kimchi | | Raw material | Treated at 180°C | Treated at 200°C | Treated at 220°C | Raw material | Treated at 180°C | Treated at 200°C | Treated at 220°C |
| Moisture (a.r) | 2.3 | 4.0 | 4.2 | 6.5 | 92.4 | 93.8 | 93.2 | 93.3 | Proximate analysis (d.b) | | | | | | | | | Volatile matter | 87.0 | 76.2 | 58.4 | 56.6 | 67.1 | 60.3 | 60.9 | 57.8 | Fixed carbon | 5.3 | 14.1 | 27.0 | 29.2 | 22.6 | 29.8 | 29.7 | 31.0 | Ash | 7.7 | 9.7 | 14.6 | 14.2 | 10.3 | 10.0 | 9.4 | 11.3 | Ultimate analysis (wt. %) (d.a.f.) | | | | | | | | | C | 40.3 | 45.0 | 54.5 | 54.8 | 33.6 | 34.4 | 35.8 | 37.0 | H | 5.6 | 5.4 | 5.0 | 4.8 | 5.3 | 4.6 | 4.6 | 4.5 | N | 0.2 | 0.1 | 0.4 | 0.2 | 3.5 | 3.2 | 3.2 | 3.0 | O | 53.8 | 49.5 | 40.1 | 40.2 | 57.6 | 57.8 | 56.4 | 55.4 | Composition of biomass (wt. %), (d.b) | | | | | | | | | Cellulose | 57.3 | 41.0 | 41.3 | 36.2 | 16.8 | 11.5 | 11.1 | 9.5 | Hemicellulose | 7.0 | 0.8 | 0.8 | 0.5 | 0.5 | 0.1 | 0.1 | 0.0 | Lignin | 12.3 | 13.6 | 14.1 | 14.7 | 4.6 | 4.9 | 4.9 | 5.0 | Other and ash | 23.5 | 44.6 | 43.9 | 48.6 | 78.1 | 83.5 | 84.0 | 85.5 | Weight loss (wt. %), (d.b) | | 9.5 | 16.3 | 20.6 | | 5.6 | 8.4 | 11.2 | Calorific value (MJ/kg) (d.b) | 15.5 | 16.9 | 21.4 | 21.7 | 14.7 | 14.7 | 16.0 | 15.8 |
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a.r: as-received, d.b: dry basis, d.a.f: dry ash free.
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