From: Integration of pulp and paper technology with bioethanol production
Comparison of autohydrolysis options | ||||
---|---|---|---|---|
Hardwood Pretreatments | ||||
 | Mixed Southern hardwood | Mixed Southern hardwood | ||
2-Stage Autohydrolysis | Newsprint Repurpose | |||
 | Quantity | Cost per unit | Quantity | Cost per unit |
Mixed Southern Hardwood | 454,545 | $72.18 | 454,545 | $72.18 |
Annual Ethanol Production, Liters | 141,771,687 | Â | 122,880,735 | Â |
Ethanol Yield, Liters per BDt | 312 | Â | 270 | Â |
CAPEX Total/per Annual Liter | 213,776,300 | $1.50 | $117,823,560 | $0.96 |
Total Biomass Cost per Liter | Â | $0.25 | Â | $0.29 |
Total Enzyme Cost per Liter | Â | $0.11 | Â | $0.12 |
Total Energy Credit/Cost | Â | $0.00 | Â | -0.01 |
Total Direct Cost per Liter | Â | $0.37 | Â | $0.43 |
Total Indirect Cost per liter | Â | $0.36 | Â | $0.33 |
Total Cash Cost per liter | Â | $0.51 | Â | $0.61 |
Total Cost per liter | Â | $0.73 | Â | $0.76 |
M. E. R,$ per liter | Â | $0.71 | Â | $0.73 |
IRR, 0025 | Â | 12% | Â | 12% |