Access to this article is restricted until 24 months after publication at the request of the publisher.. Restriction lift date: 2019-07-11
Effect of solids loading on ethanol production: Experimental, Economic and Environmental analysis
Kadhum, Haider Jawad
Murthy, Ganti S.
This study explores the effect of high-solids loading for a fed batch enzymatic hydrolysis and fermentation. The solids loading considered was 19%, 30% and 45% using wheat straw and corn stover as a feedstock. Based on the experimental results, techno-economic analysis and life cycle assessments were performed. The experimental results showed that 205±25.8 g/L glucose could be obtained from corn stover at 45% solids loading after 96h which when fermented yielded 115.9±6.37 g/L ethanol after 60h of fermentation. Techno-economic analysis showed that corn stover at 45% loading yielded the highest ROI at 8% with a payback period less than 12 years. Similarly, the global warming potential was lowest for corn stover at 45% loading at -37.8 gCO2 eq./MJ ethanol produced.
Solids loading , Enzymatic hydrolysis , Fermentation , Lignocelluloses , Techno-economic analysis , Environmental impacts
Kadhum, H. J., Rajendran, K. and Murthy, G. S. 'Effect of solids loading on ethanol production: Experimental, Economic and Environmental analysis', Bioresource Technology. In Press. doi: 10.1016/j.biortech.2017.07.047