Skip to main content
Figure 6 | Biotechnology for Biofuels

Figure 6

From: Improved ethanol yield and reduced minimum ethanol selling price (MESP) by modifying low severity dilute acid pretreatment with deacetylation and mechanical refining: 2) Techno-economic analysis

Figure 6

Corn stover hydrolysate comparison between treatment without refining and refining using a total of 8,000 (indicated by 8 K) revolutions in a PFI refining mill. Pioneer variety corn stover (33B51 and 34 M95) was pretreated at the low severity conditions of 150°C, 0.5 wt% H2SO4, for 20 min, diluted to 20 wt% insoluble solids, refined in a PFI mill for 8,000 revolutions, and enzymatically saccharified with 20 mg/g cellulose using Genencor GC220 cellulase enzyme preparation at 20 wt% total solids at 50°C, pH 5.0, 4 rpm for 168 h. The 168 h slurry was then filtered on 0.2 μ nylon filters.

Back to article page