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Table 1 Tested pretreatment conditionsa

From: Co-hydrolysis of hydrothermal and dilute acid pretreated populus slurries to support development of a high-throughput pretreatment system

Pretreatment    Solids load, % w/w Severity
Method Temp, °C Time, min   
Water only 180 17.6 0.5 Log R 0 = 3.6b
Water only 180 44.1 0.5 Log R 0 = 4.0
Water only 180 17.6 1.0 Log R 0 = 3.6
Water only 180 44.1 1.0 Log R 0 = 4.0
Water only 180 17.6 2.0 Log R 0 = 3.6
Water only 180 44.1 2.0 Log R 0 = 4.0
Sulfuric acid 1% w/w 140 10.3 0.5 Log CS = 1.5c
Sulfuric acid 1% w/w 140 20.5 0.5 Log CS = 1.8
Sulfuric acid 1% w/w 140 10.3 2.0 Log CS = 1.5
Sulfuric acid 1% w/w 140 20.5 2.0 Log CS = 1.8
Sulfuric acid 2% w/w 140 5.1 2.0 Log CS = 1.5
Sulfuric acid 2% w/w 140 10.3 2.0 Log CS = 1.8
  1. aPretreatment conditions used to compare co-hydrolysis to the conventional characterization method.
  2. b, where t denotes time in minutes and T temperature in °C.
  3. cCS = 10pH × R 0.