Fig. 5
From: Pilot-scale steam explosion pretreatment with 2-naphthol to overcome high softwood recalcitrance
Comparison of 2-naphthol steam explosion pretreatments with acid-catalyzed steam explosion pretreatment studies [38, 47, 48, 50,51,52, 55] for softwood. Shown are the glucose yields in enzymatic cellulose hydrolysis (a) and the total sugar yields from the combined operations of pretreatment and enzymatic hydrolysis (b). Yields are expressed as % of raw biomass content and account for cellulose recovery from pretreatment. Pretreatment conditions for the 2-naphthol experiments: T = 235 °C, t = 5 min, Δp explosion = 30 bar, 1.5 kg wood chips, 35.36 g 2-naphthol