Techno‐economic analysis of co‐located corn grain and corn stover ethanol plants

Techno‐economic analysis of co‐located corn grain and corn stover ethanol plants The goal of this paper is to evaluate the economic performance of co‐located corn grain ethanol (Gen 1) and cellulosic ethanol (Gen 2) facilities. We present six scenarios to evaluate the impact of stover‐to‐grain mass (SGM) ratios on overall minimum ethanol selling price (MESP). For the Gen 1 plant, MESP is $3.18/ gasoline gallon equivalent (GGE) while for the Gen 2 plant it is $5.64/GGE. Co‐located Gen 1 and Gen 2 plants operating at the lowest SGM ratio of 0.4 generates the lowest overall MESP of $3.73/GGE as well as the highest MESP for cellulosic ethanol of $7.85/GGE. Co‐located plants operating at the highest SGM ratio of 1.0 achieve the highest overall MESP of $3.94/GGE as well as the lowest MESP for cellulosic ethanol of $5.47/GGE. Sensitivity analysis shows that the prices of feedstocks have the greatest impact on the overall MESP. © 2014 Society of Chemical Industry and John Wiley & Sons, Ltd http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biofuels, Bioproducts and Biorefining Wiley

Techno‐economic analysis of co‐located corn grain and corn stover ethanol plants

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Publisher
Wiley
Copyright
Copyright © 2014 Society of Chemical Industry and John Wiley & Sons, Ltd
ISSN
1932-104X
eISSN
1932-1031
DOI
10.1002/bbb.1475
Publisher site
See Article on Publisher Site

Abstract

The goal of this paper is to evaluate the economic performance of co‐located corn grain ethanol (Gen 1) and cellulosic ethanol (Gen 2) facilities. We present six scenarios to evaluate the impact of stover‐to‐grain mass (SGM) ratios on overall minimum ethanol selling price (MESP). For the Gen 1 plant, MESP is $3.18/ gasoline gallon equivalent (GGE) while for the Gen 2 plant it is $5.64/GGE. Co‐located Gen 1 and Gen 2 plants operating at the lowest SGM ratio of 0.4 generates the lowest overall MESP of $3.73/GGE as well as the highest MESP for cellulosic ethanol of $7.85/GGE. Co‐located plants operating at the highest SGM ratio of 1.0 achieve the highest overall MESP of $3.94/GGE as well as the lowest MESP for cellulosic ethanol of $5.47/GGE. Sensitivity analysis shows that the prices of feedstocks have the greatest impact on the overall MESP. © 2014 Society of Chemical Industry and John Wiley & Sons, Ltd

Journal

Biofuels, Bioproducts and BiorefiningWiley

Published: Jan 1, 2014

Keywords: ; ; ; ; ;

References

  • Availability of corn stover as a sustainable feedstock for bioethanol production
    Kadam, KL; McMillan, JD
  • Current and potential US corn stover supplies
    Graham, RL; Nelson, R; Sheehan, J; Perlack, RD; Wright, LL
  • Use of U.S. croplands for biofuels increases greenhouse gases through emissions from land‐use change
    Searchinger, T; Heimlich, R; Hougthon, R; Dong, F; Elobeid, A; Fabiosa, J

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