Research Article
Economic Impact of NMMO Pretreatment on Ethanol and Biogas Production from Pinewood
Table 4
Total project investment and its breakdown for the scenarios.
| | Scenario | 1 | 2 | 3 | 4 |
| | Pretreatment | NMMO | NMMO | Steam explosion | Steam explosion |
| | Product | Ethanol/biogas | Biomethane | Ethanol/biogas | Biomethane |
| | Investment cost (million €) | | | | | | Feed handling | 5.6 | 5.0 | 5.6 | 5.0 | | Pretreatment | 10.2 | 10.0 | 6.4 | 6.4 | | Hydrolysis and fermentation | 9.0 | — | 10.1 | — | | Distillation and dehydration | 7.8 | — | 7.7 | — | | Biogas production | — | 21.9 | — | 21.7 | | Biogas upgrading/compression | — | 21.8 | — | 21.5 | | Water treatment | 2.3 | 1.3 | 2.3 | 1.3 | | Utility | 4.5 | 2.6 | 4.4 | 2.5 | | Storage | 1.5 | 3.6 | 1.3 | 3.4 | | Working capital | 3.1 | 3.5 | 2.7 | 3.3 |
| | Total project investment | 44.0 | 69.7 | 40.5 | 65.1 |
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