Table 4 Overall bulk materials used in ethanol making process (2010 prices)
| Â | Â | Dilute Acid | Dilute Alkali | Hot Water | Steam Explosion | ||||
|---|---|---|---|---|---|---|---|---|---|
Material | Unit Cost ($/kg) | Annual Cost ($1000×) | Cost (¢/L EtOH) | Annual Cost ($) | Cost (¢/L EtOH) | Annual Cost ($1000×) | Cost (¢/L EtOH) | Annual Cost ($) | Cost (¢/L EtOH) |
Water | 0.0003 | 106.69 | 0.18 | 108.21 | 0.18 | 104.04 | 0.18 | 70.05 | 0.13 |
Tall Fescue | 0.0500 | 12500.00 | 20.95 | 12500.00 | 21.02 | 12500.00 | 21.06 | 12500.00 | 23.35 |
Sulfuric Acid | 0.0350 | 429.12 | 0.72 | 99.79 | 0.17 | 0 | 0.00 | 0 | 0.00 |
Ca Hydroxide | 0.1000 | 597.09 | 1.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
DAP | 0.2100 | 16.632 | 0.03 | 16.63 | 0.03 | 16.63 | 0.03 | 16.63 | 0.03 |
Cellulase | 0.5170 | 8066.60 | 13.52 | 9279.01 | 15.60 | 9265.98 | 15.61 | 8840.70 | 16.52 |
Yeast | 2.3000 | 455.40 | 0.76 | 455.40 | 0.77 | 455.40 | 0.77 | 455.40 | 0.85 |
Sodium Hydroxide | 0.4500 | 0.00 | 0.00 | 4203.80 | 7.07 | 0.00 | 0.00 | 0 | 0.00 |
Gasoline | 0.8000 | 390.53 | 0.65 | 389.29 | 0.65 | 388.48 | 0.65 | 350.10 | 0.65 |