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Table 1 Overview of pretreatment experiments and experimental conditions

From: Pilot-scale steam explosion pretreatment with 2-naphthol to overcome high softwood recalcitrance

2-Naphthol addition T/°C t/min logR 0/− Δp explosion/bar
235 2.5 4.4 30
235 5 4.7 30
235 10 5.0 30
235 15 5.2 30
235 20 5.3 30
Mixing 235 2.5 4.4 30
Mixing 235 5 4.7 30
Mixing 235 10 5.0 30
Mixing 235 15 5.2 30
Mixing 235 20 5.3 30
Mixing 235 2.5 4.4 2.5*
Mixing 235 5 4.7 2.5*
Mixing 235 10 5.0 2.5*
Mixing 235 15 5.2 2.5*
Mixing 235 20 5.3 2.5*
Acetone impregnation 235 2.5 4.4 30
Acetone impregnation 235 5 4.7 30
Acetone impregnation 235 10 5.0 30
Acetone impregnation 235 15 5.2 30
Acetone impregnation 235 20 5.3 30
Ethanol impregnation 235 2.5 4.4 30
Ethanol impregnation 235 5 4.7 30
Ethanol impregnation 235 10 5.0 30
Ethanol impregnation 235 15 5.2 30
Ethanol impregnation 235 20 5.3 30
  1. * Experiments with a Δp of 2.5 bar are referred to as experiments “without explosion”