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Title: Optimal blending management of biomass resources used for biochemical conversion

Journal Article · · Biofuels, Bioproducts & Biorefining
DOI: https://doi.org/10.1002/bbb.1877 · OSTI ID:1476911

This research develops an optimization model to describe the tradeoff among blend components in the least-cost biomass blend, based on resource availability, quality requirements, and logistics cost for a biochemical conversion. A mixed-integer linear programming model is developed to determine the least-cost blend from a set of candidate feedstocks. A case study – based on a biorefinery located in western Kansas that uses three-pass corn stover, two-pass corn stover, switchgrass, miscanthus, and municipal solid waste fractions to meet biochemical conversion specifications and feedstock demand – shows that the delivered cost of an optimal blend that meets carbohydrate and ash specifications is 12.12% higher than the delivered cost of optimal blend that meets a carbohydrate specification only. The results indicate that a least-cost blend that meets both carbohydrate and ash specifications consists of miscanthus (48.2%) and switchgrass (29.4%) whereas the least-cost blend meeting carbohydrate specification only comprises three-pass corn stover (55.4%) and two-pass corn stover (20.4%). Here an optimal blend uses a low-cost municipal solid waste fraction in all cases, implying that blending could be a potential strategy to reduce delivered feedstock cost.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
Grant/Contract Number:
AC07-05ID14517
OSTI ID:
1476911
Report Number(s):
INL/JOU--17-42765-Rev000
Journal Information:
Biofuels, Bioproducts & Biorefining, Journal Name: Biofuels, Bioproducts & Biorefining Journal Issue: 4 Vol. 12; ISSN 1932-104X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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