Chemical and Biological Engineering, NSF Engineering Research Center for Biorenewable Chemicals
Research Focus Area
Catalysis and Reaction Engineering, Renewable Energy
Journal or Book Title
The expansion of the dry grind ethanol industry provides a unique opportunity to introduce cellulose conversion technology to existing grain to ethanol plants, while enhancing ethanol yields by up to 14%, and decreasing the volume while increasing protein content of distiller’s grains. The technologies required are cellulose pretreatment, enzyme hydrolysis, fermentation, and drying. Laboratory data combined with compositional analysis and process simulations are used to present a comparative analysis of a dry grind process to a process with pretreatment and hydrolysis of cellulose in distiller’s grains. The additional processing steps are projected to give a 32% increase in net present value if process modifications are made to a 100 million gallon/year plant.
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Ladisch, Michael; Dale, Bruce; Tyner, Wally; Mosier, Nathan; Kim, Youngmi; Cotta, Michael; Dien, Bruce; Blaschek, Hans; Laurenas, Edmund; Shanks, Brent H.; Verkade, John; Schell, Chad; and Petersen, Gene, "Cellulose conversion in dry grind ethanol plants" (2008). Chemical and Biological Engineering Publications. 425.