Steam Explosion Pretreatment with Different Concentrations of Hydrogen Peroxide along with Citric Acid: A Former Step towards Bioethanol Production

Figure 2

X-ray diffraction pattern. (a) Steam explosion impregnated with different concentration of H₂O₂ (A) untreated sample (B) 0.05% H₂O₂ pretreated sample, (C) 0.1% H₂O₂ pretreated sample, (D) 0.25% H₂O₂ pretreated sample, (E) 0.5% H₂O₂ pretreated sample, (F) 0.75% H₂O₂ pretreated sample, and (G) 1% pretreated sample. (b) At different ratio of HP-CA, (A) 1 : 1 ratio, (B) 1 : 2 ratio, and (C) 2 : 1 ratio.

(a)

(b)