Journal
GREEN CHEMISTRY
Volume 17, Issue 1, Pages 394-403Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4gc01283f
Keywords
-
Funding
- National Renewable Energy Laboratory [XGV-2-11467-01]
- Ford Motor Company
Ask authors/readers for more resources
To maximize yields of fermentable xylose monomer from hydrothermal pretreatment of corn stover at 200 degrees C, the xylooligomers- rich liquor produced was post hydrolyzed with dilute sulfuric acid over a range of times and acid concentrations. The results showed that application of 0.75% H2SO4 at 110 degrees C for 180 min or 0.50% H2SO4 at 110 degrees C for 240 min recovered almost 100% of the total xylose from the oligomers. Furthermore, adjusting one constant in the combined severity parameter ( CSP) provided a rapid and accurate tool for trading off times, temperatures, and acid concentrations to reach the highest xylose yields from xylooligomers in hydrothermal pretreatment solutions. This adjusted CSP showed that an 8.4 degrees C temperature increase has the same impact as doubling the acid concentration or halving reaction time instead of the 10 degrees C change projected by the customary CSP and suggests that xylooligomers bonds are more easily broken than the hemicellulose from which they are derived.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available