@article{2850f9eb34f242768d9bd89de85c8893,
title = "New strategy for liquefying corn stover pellets",
abstract = "The movement of solid material into and between unit operations within a biorefinery is a bottleneck in reaching design capacity, with formation of biomass slurries needed to introduce feedstock. Corn stover slurries have been achieved from dilute acid, pretreated materials resulting in slurry concentrations of up to about 150 g/L, above which flowability is compromised. We report a new strategy to liquefy corn stover at higher solids concentration (300 g/L) by initially cooking it with the enzyme mimetic maleic acid at 40 mM and 150 °C. This is followed by 6 h of enzymatic modification at 1 FPU (2.2 mg protein)/g solids, resulting in a yield stress of 171 Pa after 6 h and 58 Pa in 48 h compared to 6806 Pa for untreated stover. Mimetic treatment of corn stover pellets minimizes the inhibitory effect of xylo-oligomers on hydrolytic enzymes. This strategy allows for the delivery of solid lignocellulosic slurry into a pretreatment reactor by pumping, improving operability of a biorefinery.",
keywords = "Biorefinery, Corn Stover, Liquefaction, Rheometry, Slurry Handling",
author = "\{dos Santos\}, \{Antonio C.Freitas\} and Overton, \{Jonathan C.\} and Ryan Szeto and Patel, \{Maulik H.\} and Gutierrez, \{Diana M.R.\} and Clark Eby and \{Mart{\'i}nez Moreno\}, \{Ana M.\} and Erk, \{Kendra A.\} and Aston, \{John E.\} and Thompson, \{David N.\} and Dooley, \{James H.\} and Pankaj Sharma and Mosier, \{Nathan S.\} and Eduardo Ximenes and Ladisch, \{Michael R.\}",
note = "Funding Information: This work was supported by DOE Cooperative Agreement DE-EE 0008256/0000. The research utilized capabilities of the Biomass Feedstock National User Facility (BFNUF), which is a DOE Office of Energy Efficiency and Renewable Energy User Facility located at Idaho National Laboratory (Idaho Falls, ID), and supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office, under DOE Idaho Operations Office Contract DE-AC07- 05ID14517. We thank Carla Carie for technical assistance in preparing the manuscript and figures, and Mark Shmorhun, Art Wiselogel, and Jessica Phillips of US DOE for discussions and guidance. The U.S. Government retains, and the publisher by accepting the article for publication acknowledges, that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes. Funding Information: This work was supported by DOE Cooperative Agreement DE-EE 0008256/0000. The research utilized capabilities of the Biomass Feedstock National User Facility (BFNUF), which is a DOE Office of Energy Efficiency and Renewable Energy User Facility located at Idaho National Laboratory (Idaho Falls, ID), and supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office, under DOE Idaho Operations Office Contract DE-AC07- 05ID14517. We thank Carla Carie for technical assistance in preparing the manuscript and figures, and Mark Shmorhun, Art Wiselogel, and Jessica Phillips of US DOE for discussions and guidance. The U.S. Government retains, and the publisher by accepting the article for publication acknowledges, that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",
year = "2021",
month = dec,
doi = "10.1016/j.biortech.2021.125773",
language = "English",
volume = "341",
pages = "125773",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Ltd",
}