Research Article
A New Proposal of Cellulosic Ethanol to Boost Sugarcane Biorefineries: Techno-Economic Evaluation
Table 9
Investment cost separated by sector calculated for the evaluated cases.
| | | Case | Case | Case | Case L | Case | Case | | | (Million US$) |
| | First generation ethanol production | | Sugarcane reception and juice extraction | 25.9 | 25.9 | 25.9 | 25.9 | 25.9 | 25.9 | | Juice treatment and concentration | 8.1 | 8.1 | 8.1 | 8.1 | 8.1 | 8.1 | | Cogeneration system | 97.7 | 97.7 | 97.7 | 104.8 | 97.9 | 108.6 | | Buildings, laboratories, and water treatment | 8 | 8 | 8 | 8 | 8 | 8 | | Control and instrumentation systems and insulation | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | | Packaging and transport | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | | Civil works and mechanical assembly | 29.7 | 29.7 | 29.7 | 29.7 | 29.7 | 29.7 | | Spare parts, supervision, engineering, and so forth | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | | Heat exchange network | 3 | 3 | 3 | 3 | 3 | 3 |
| | Second generation ethanol production | | Pretreatment, hydrolysis, and concentration of the hydrolyzed | 64.8 | 63.3 | 52.6 | 64.4 | 106.7 | — |
| | Shared equipment for first and second generation | | Fermentation and distillation | 33.8 | 34.1 | 34.5 | 31.6 | 32.7 | 21.2 | | Vinasse concentration | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 |
| | Total | 292.5 | 291.3 | 281 | 297 | 333.5 | 225.9 |
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