skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Supply and value chain analysis of mixed biomass feedstock supply system for lignocellulosic sugar production

Abstract

Here the sustainable supply of high-quality, low-cost biomass feedstock to cellulosic biorefineries is still a challenge. Utilizing corn stover as the single feedstock to a biorefinery also poses a source of risk to seasonal feedstock availability, affordability, and sustainability. Implementing a year-round feedstock switching strategy or utilizing an optimal mixture of corn stover, miscanthus, and switchgrass is demonstrated to diminish these concerns while reducing the cost of sugar production by as much as 3.8% and 13.6%, respectively, when compared to a baseline sugar price of 441.9 $ metric ton-1 (t) attributed to a fixed corn stover feedstock basis. This study determines that a mixing ratio of corn stover, miscanthus, and switchgrass of 36%, 50%, and 14%, respectively, minimizes the selling price of sugar. If miscanthus is sufficiently available in the future, its fraction could be further increased to 70% by reducing the fraction of corn stover. We find that the mixed feedstock considered in this study reduces the nutrient replacement and feedstock transportation costs and improves the quality of feedstock (determined by total carbohydrates and ash) relative to corn stover alone. Results suggest that a high-quality feedstock with a high carbohydrate content is an important metric for consideration, beyond strictlymore » the feedstock cost, to reduce the selling price of sugar and its uncertainties. In the future this may be supported by the increased availability of higher carbohydrate feedstocks such as miscanthus.« less

Authors:
 [1];  [2];  [3]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Colorado State Univ., Fort Collins, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Clean Energy Manufacturing Analysis Center (CEMAC)
OSTI Identifier:
1500076
Alternate Identifier(s):
OSTI ID: 1494845
Report Number(s):
NREL/JA-5100-72895
Journal ID: ISSN 1932-104X
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Biofuels, Bioproducts & Biorefining
Additional Journal Information:
Journal Name: Biofuels, Bioproducts & Biorefining; Journal ID: ISSN 1932-104X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; mixed biomass feedstock; transportation; storage; biomass blending; biochemical conversion; fermentable sugars; supply chain analysis

Citation Formats

Baral, Nawa Raj, Davis, Ryan, and Bradley, Thomas H. Supply and value chain analysis of mixed biomass feedstock supply system for lignocellulosic sugar production. United States: N. p., 2019. Web. doi:10.1002/bbb.1975.
Baral, Nawa Raj, Davis, Ryan, & Bradley, Thomas H. Supply and value chain analysis of mixed biomass feedstock supply system for lignocellulosic sugar production. United States. doi:10.1002/bbb.1975.
Baral, Nawa Raj, Davis, Ryan, and Bradley, Thomas H. Thu . "Supply and value chain analysis of mixed biomass feedstock supply system for lignocellulosic sugar production". United States. doi:10.1002/bbb.1975.
@article{osti_1500076,
title = {Supply and value chain analysis of mixed biomass feedstock supply system for lignocellulosic sugar production},
author = {Baral, Nawa Raj and Davis, Ryan and Bradley, Thomas H.},
abstractNote = {Here the sustainable supply of high-quality, low-cost biomass feedstock to cellulosic biorefineries is still a challenge. Utilizing corn stover as the single feedstock to a biorefinery also poses a source of risk to seasonal feedstock availability, affordability, and sustainability. Implementing a year-round feedstock switching strategy or utilizing an optimal mixture of corn stover, miscanthus, and switchgrass is demonstrated to diminish these concerns while reducing the cost of sugar production by as much as 3.8% and 13.6%, respectively, when compared to a baseline sugar price of 441.9 $ metric ton-1 (t) attributed to a fixed corn stover feedstock basis. This study determines that a mixing ratio of corn stover, miscanthus, and switchgrass of 36%, 50%, and 14%, respectively, minimizes the selling price of sugar. If miscanthus is sufficiently available in the future, its fraction could be further increased to 70% by reducing the fraction of corn stover. We find that the mixed feedstock considered in this study reduces the nutrient replacement and feedstock transportation costs and improves the quality of feedstock (determined by total carbohydrates and ash) relative to corn stover alone. Results suggest that a high-quality feedstock with a high carbohydrate content is an important metric for consideration, beyond strictly the feedstock cost, to reduce the selling price of sugar and its uncertainties. In the future this may be supported by the increased availability of higher carbohydrate feedstocks such as miscanthus.},
doi = {10.1002/bbb.1975},
journal = {Biofuels, Bioproducts & Biorefining},
issn = {1932-104X},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 14, 2020
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Combined effect of pelleting and pretreatment on enzymatic hydrolysis of switchgrass
journal, July 2012


Effects of the pelleting conditions on chemical composition and sugar yield of corn stover, big bluestem, wheat straw, and sorghum stalk pellets
journal, October 2011

  • Theerarattananoon, Karnnalin; Xu, Feng; Wilson, Jonathan
  • Bioprocess and Biosystems Engineering, Vol. 35, Issue 4, p. 615-623
  • DOI: 10.1007/s00449-011-0642-8

Pretreatment of Switchgrass by Ammonia Fiber Explosion (AFEX)
journal, January 2005

  • Alizadeh, Hasan; Teymouri, Farzaneh; Gilbert, Thomas I.
  • Applied Biochemistry and Biotechnology, Vol. 124, Issue 1-3, p. 1133-1142
  • DOI: 10.1385/ABAB:124:1-3:1133

Process and technoeconomic analysis of leading pretreatment technologies for lignocellulosic ethanol production using switchgrass
journal, December 2011


Lime pretreatment and enzymatic hydrolysis of corn stover
journal, December 2005