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Table 2 Low acid and low temperature pretreatment conditions used in this study, compared with conditions from the 2011 NREL design model

From: Improved ethanol yield and reduced minimum ethanol selling price (MESP) by modifying low severity dilute acid pretreatment with deacetylation and mechanical refining: 2) Techno-economic analysis

  2011 Design Low Acid in this Study
Sulfuric acid loading 22 mg/g dry biomass 8 mg/g dry biomass
Residence time 5 minutes 20 minutes
Temperature 158°C 150°C
Pressure 5.5 atm 4 atm
  1. A 30% total solid loading is applied for both conditions.