Journal
APPLIED ENERGY
Volume 213, Issue -, Pages 585-594Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2017.11.002
Keywords
Biorefinery; Bioethanol; Process design; Integration; Technoeconomic analysis
Categories
Funding
- U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) [DE-EE0006878]
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A biorefinery strategy for the coproduction of ethanol and 1,5-pentanediol (1,5-PDO), which can be used as polyester and polyurethane component, from lignocellulosic biomass is proposed. This strategy integrates biomass fractionation with simultaneous conversion of hemicellulose and cellulose constituents into 1,5-PDO and ethanol, respectively. An experimentally-based process model is developed to determine the economic potential of the integrated strategy. The coproduction strategy becomes competitive with the ethanol-only strategy when 1,5-PDO can be sold at $1140/ton, which is well below the market price of 1,5-PDO. The most important process parameters include biomass loading for biomass fractionation, enzyme loading for enzymatic hydrolysis and fermentation, and overall achievable yields from C5 sugars to 1,5-PDO.
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