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Title: Cellulosic ethanol: status and innovation

Abstract

Although the purchase price of cellulosic feedstocks is competitive with petroleum on an energy basis, the cost of lignocellulose conversion to ethanol using today's technology is high. Cost reductions can be pursued via either in-paradigm or new-paradigm innovation. Here, as an example of new-paradigm innovation, consolidated bioprocessing using thermophilic bacteria combined with milling during fermentation (cotreatment) is analyzed. Acknowledging the nascent state of this approach, our analysis indicates potential for radically improved cost competitiveness and feasibility at smaller scale compared to current technology, arising from (a) R&D-driven advances (consolidated bioprocessing with cotreatment in lieu of thermochemical pretreatment and added fungal cellulase), and (b) configurational changes (fuel pellet coproduction instead of electricity, gas boiler(s) in lieu of a solid fuel boiler).

Authors:
 [1];  [1];  [2];  [1];  [3];  [2];  [2];  [1];  [3];  [4]
  1. Dartmouth College, Hanover, NH (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Univ. of California, Riverside, CA (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1364156
Alternate Identifier(s):
OSTI ID: 1416774
Report Number(s):
NREL/JA-5100-68702
Journal ID: ISSN 0958-1669
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Current Opinion in Biotechnology
Additional Journal Information:
Journal Volume: 45; Journal Issue: C; Journal ID: ISSN 0958-1669
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; cellulosic feedstocks; conversion; bioprocessing; fermentation

Citation Formats

Lynd, Lee R., Liang, Xiaoyu, Biddy, Mary J., Allee, Andrew, Cai, Hao, Foust, Thomas, Himmel, Michael E., Laser, Mark S., Wang, Michael, and Wyman, Charles E. Cellulosic ethanol: status and innovation. United States: N. p., 2017. Web. doi:10.1016/j.copbio.2017.03.008.
Lynd, Lee R., Liang, Xiaoyu, Biddy, Mary J., Allee, Andrew, Cai, Hao, Foust, Thomas, Himmel, Michael E., Laser, Mark S., Wang, Michael, & Wyman, Charles E. Cellulosic ethanol: status and innovation. United States. doi:10.1016/j.copbio.2017.03.008.
Lynd, Lee R., Liang, Xiaoyu, Biddy, Mary J., Allee, Andrew, Cai, Hao, Foust, Thomas, Himmel, Michael E., Laser, Mark S., Wang, Michael, and Wyman, Charles E. Thu . "Cellulosic ethanol: status and innovation". United States. doi:10.1016/j.copbio.2017.03.008. https://www.osti.gov/servlets/purl/1364156.
@article{osti_1364156,
title = {Cellulosic ethanol: status and innovation},
author = {Lynd, Lee R. and Liang, Xiaoyu and Biddy, Mary J. and Allee, Andrew and Cai, Hao and Foust, Thomas and Himmel, Michael E. and Laser, Mark S. and Wang, Michael and Wyman, Charles E.},
abstractNote = {Although the purchase price of cellulosic feedstocks is competitive with petroleum on an energy basis, the cost of lignocellulose conversion to ethanol using today's technology is high. Cost reductions can be pursued via either in-paradigm or new-paradigm innovation. Here, as an example of new-paradigm innovation, consolidated bioprocessing using thermophilic bacteria combined with milling during fermentation (cotreatment) is analyzed. Acknowledging the nascent state of this approach, our analysis indicates potential for radically improved cost competitiveness and feasibility at smaller scale compared to current technology, arising from (a) R&D-driven advances (consolidated bioprocessing with cotreatment in lieu of thermochemical pretreatment and added fungal cellulase), and (b) configurational changes (fuel pellet coproduction instead of electricity, gas boiler(s) in lieu of a solid fuel boiler).},
doi = {10.1016/j.copbio.2017.03.008},
journal = {Current Opinion in Biotechnology},
number = C,
volume = 45,
place = {United States},
year = {2017},
month = {5}
}

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Works referencing / citing this record:

Lipid metabolism of phenol-tolerant Rhodococcus opacus strains for lignin bioconversion
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  • Henson, William R.; Hsu, Fong-Fu; Dantas, Gautam
  • Biotechnology for Biofuels, Vol. 11, Issue 1
  • DOI: 10.1186/s13068-018-1337-z

Performance of three delignifying pretreatments on hardwoods: hydrolysis yields, comprehensive mass balances, and lignin properties
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Exploring industrial and natural Saccharomyces cerevisiae strains for the bio-based economy from biomass: the case of bioethanol
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Exploring industrial and natural Saccharomyces cerevisiae strains for the bio-based economy from biomass: the case of bioethanol
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Net-zero emissions energy systems
journal, June 2018


Lipid metabolism of phenol-tolerant Rhodococcus opacus strains for lignin bioconversion
journal, December 2018

  • Henson, William R.; Hsu, Fong-Fu; Dantas, Gautam
  • Biotechnology for Biofuels, Vol. 11, Issue 1
  • DOI: 10.1186/s13068-018-1337-z

Performance of three delignifying pretreatments on hardwoods: hydrolysis yields, comprehensive mass balances, and lignin properties
journal, September 2019


Rational strain engineering interventions to enhance cellulase secretion by Saccharomyces cerevisiae
journal, October 2017

  • Kroukamp, Heinrich; den Haan, Riaan; van Zyl, John‐Henry
  • Biofuels, Bioproducts and Biorefining, Vol. 12, Issue 1
  • DOI: 10.1002/bbb.1824