title: Cellulose conversion in dry grind ethanol plants.
abstract: 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.
authors.affiliation: Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, IN 47907, USA. carie@purdue.edu
authors.forename: Michael
authors.initials: M
authors.lastname: Ladisch
authors.forename: Bruce
authors.initials: B
authors.lastname: Dale
authors.forename: Wally
authors.initials: W
authors.lastname: Tyner
authors.forename: Nathan
authors.initials: N
authors.lastname: Mosier
authors.forename: Youngmi
authors.initials: Y
authors.lastname: Kim
authors.forename: Michael
authors.initials: M
authors.lastname: Cotta
authors.forename: Bruce
authors.initials: B
authors.lastname: Dien
authors.forename: Hans
authors.initials: H
authors.lastname: Blaschek
authors.forename: Edmund
authors.initials: E
authors.lastname: Laurenas
authors.forename: Brent
authors.initials: B
authors.lastname: Shanks
authors.forename: John
authors.initials: J
authors.lastname: Verkade
authors.forename: Chad
authors.initials: C
authors.lastname: Schell
authors.forename: Gene
authors.initials: G
authors.lastname: Petersen
mesh_terms: D002482:Cellulose / Q000378:metabolism*; D000431:Ethanol / Q000737:chemistry* / Q000378:metabolism*; D005285:Fermentation; D006868:Hydrolysis; D009005:Monosaccharides / Q000378:metabolism; D003313:Zea mays / Q000378:metabolism
chemical_list: D009005:Monosaccharides; D000431:Ethanol; D002482:Cellulose