Fig. 1From: Pilot-scale steam explosion pretreatment with 2-naphthol to overcome high softwood recalcitranceRepresentation showing the amounts of spruce wood chips (1.5 kg) and 2-naphthol (35.36 g) that were used in the experiments. The 2-naphthol was added by mixing of the solid flakes with the wood chips or by impregnation of the biomass prior to pretreatmentBack to article page