Research Article
A New Proposal of Cellulosic Ethanol to Boost Sugarcane Biorefineries: Techno-Economic Evaluation
Table 4
Overall parameters adopted for the second generation ethanol production.
| | Case | | Case | Case | Case | Case L | Case |
| | Bagasse handle | | | | | | | | P-F from the total bagasse | % | 35 | 35 | 35 | 20 | — | | Pretreatment | | — | SE | LHW | LHW | LHW | | Biomass used | | — | P-F | P-F | P-F | B | | Moisture content (SE) | % | — | 70 | — | — | — | | Reactor solids load (LHW) | % | — | — | 20 | 20 | 20 | | Reactor temperature |
°C | — | 205 | 180 | 180 | 180 | | Reaction time | min | — | 5 | 15 | 15 | 15 | | Hemicellulose-xylose conversion | % | — | 80.0 | 98.0 | 88.0 | 88.0 | | Cellulose-glucose conversion | % | — | 3.2 | 3.2 | 3.2 | 3.2 | | Xylose-furfural conversion | % | — | 18.0 | 0.1 | 0.1 | 0.1 | | Hemicellulose-acetic acid conversion | % | — | 16.9 | 1.0 | 1.0 | 1.0 | | Enzymatic Hydrolysis | | | | | | | | Reactor solids load | % | 10 | 10 | 10 | 5 | 5 | | Cellulose-glucose conversion | % | 75 | 85.0 | 92.0 | 90.0 | 90.0 | | Hemicellulose-xylose conversion | % | 35 | 35.7 | 35.7 | 35.7 | 35.7 | | Fermentation | | | | | | | | Glucose-ethanol conversion | % | 92 | 92 | 92 | 89 | 89 |
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B: bagasse; P-F: P-fraction; LHW: liquid hot water; SE: steam explosion.
Assumed parameters based on data available at [16, 24, 25].
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