Table 2.
Elemental Composition of Wood Pellets, Wood Sawdust and Coffee Waste
| N (%) | C (%) | H (%) | S (%) | Cl (%) |
| Larch pellet I1 | 0.1 | 47.58 | 5.92 | ND | ND |
| Larch pellet II2 | 0.1 | 47.19 | 6.23 | ND | ND |
| Yellow poplar sawdust3 | < 0.1 | 46.91 | 5.77 | 0.02 | ND |
| Larch sawdust4 | 0.1 | 44.94 | 5.77 | 0.01 | ND |
| Coffee waste | 2.3 | 42.07 | 6.18 | 0.25 | < 0.01 |
| 1st-grade pellet5 | < 0.3 | - | - | < 0.05 | < 0.05 |
| 2nd-grade pellet5 | < 0.5 | - | - | < 0.05 | < 0.05 |
| 3rd-grade pellet5 | < 0.7 | - | - | < 0.05 | < 0.05 |
| 4th-grade pellet5 | < 1.0 | - | - | < 0.05 | < 0.05 |
It was obtained from SYENP Co. Ltd. (Cheongju, South Korea).
It was obtained form National Forestry Cooperative Federation (Yeoju, South Korea).
Liriodendron tulipifera L.
Larix kaempferi C.
Minimum requirements of wood pellet standard designated by National Institute of Forest Science.