Figure 5From: A comparative study of ethanol production using dilute acid, ionic liquid and AFEX™ pretreated corn stoverMaterial balances during pretreatment, hydrolysis and fermentation for three different processes. (A) DA-, (B) IL- and (C) AFEX-based pretreatments. AFEX, ammonia fiber expansion; DA, dilute acid; IL, ionic liquid.Back to article page