TY - JOUR
T1 - A lignocellulosic ethanol strategy via nonenzymatic sugar production
T2 - Process synthesis and analysis
AU - Han, Jeehoon
AU - Luterbacher, Jeremy S.
AU - Alonso, David Martin
AU - Dumesic, James A.
AU - Maravelias, Christos T.
N1 - Funding Information:
This work was funded by the DOE Great Lakes Bioenergy Research Center ( DOE BER Office of Science DE-FC02-07ER64494 ).
Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - The work develops a strategy for the production of ethanol from lignocellulosic biomass. In this strategy, the cellulose and hemicellulose fractions are simultaneously converted to sugars using a γ-valerolactone (GVL) solvent containing a dilute acid catalyst. To effectively recover GVL for reuse as solvent and biomass-derived lignin for heat and power generation, separation subsystems, including a novel CO2-based extraction for the separation of sugars from GVL, lignin and humins have been designed. The sugars are co-fermented by yeast to produce ethanol. Furthermore, heat integration to reduce utility requirements is performed. It is shown that this strategy leads to high ethanol yields and the total energy requirements could be satisfied by burning the lignin. The integrated strategy using corn stover feedstock leads to a minimum selling price of $5 per gallon of gasoline equivalent, which suggests that it is a promising alternative to current biofuels production approaches.
AB - The work develops a strategy for the production of ethanol from lignocellulosic biomass. In this strategy, the cellulose and hemicellulose fractions are simultaneously converted to sugars using a γ-valerolactone (GVL) solvent containing a dilute acid catalyst. To effectively recover GVL for reuse as solvent and biomass-derived lignin for heat and power generation, separation subsystems, including a novel CO2-based extraction for the separation of sugars from GVL, lignin and humins have been designed. The sugars are co-fermented by yeast to produce ethanol. Furthermore, heat integration to reduce utility requirements is performed. It is shown that this strategy leads to high ethanol yields and the total energy requirements could be satisfied by burning the lignin. The integrated strategy using corn stover feedstock leads to a minimum selling price of $5 per gallon of gasoline equivalent, which suggests that it is a promising alternative to current biofuels production approaches.
KW - Biofuels
KW - Heat integration
KW - Process design
KW - Technoeconomic evaluation
KW - γ-Valerolactone
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U2 - 10.1016/j.biortech.2015.01.135
DO - 10.1016/j.biortech.2015.01.135
M3 - Article
C2 - 25704099
AN - SCOPUS:84923055675
SN - 0960-8524
VL - 182
SP - 258
EP - 266
JO - Bioresource Technology
JF - Bioresource Technology
ER -