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Table 2 Financial summary of green liquor pretreatment of hardwood

From: Integration of pulp and paper technology with bioethanol production

Hardwood green liquor cases
  2015 Projection 2015 Projection
Greenfield GL Mill Repurpose GL Mill
  Quantity Cost per unit Quantity Cost per unit
Mixed Southern Hardwood 454,545 $72.18 454,545 $72.18
Annual Ethanol Production, Liters 148,072,272   147,905,135  
Ethanol Yield, Liters per BDt 326   325  
CAPEX Total/per Annual Liter 329,494,169 $2.22 $79,955,469 $0.54
Total Biomass Cost per Liter   $0.24   $0.24
Total Enzyme Cost per Liter   $0.12   $0.12
Total Energy Credit/cost   $0.04   $0.02
Total Direct Cost per Liter   $0.33   $0.35
Total Indirect Cost per liter   $0.50   $0.18
Total Cash Cost per liter   $0.52   $0.45
Total Cost per liter   $0.83   $0.54
MER,$ per liter   $0.83   $0.52
IRR, 0025   12%   12%
  1. No major differences in plant performance but investment cost in the Repurpose case permits Minimum Ethanol Revenue below the target of $0.60 per Liter.