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Title: Compatibility of High-Moisture Storage for Biochemical Conversion of Corn Stover: Storage Performance at Laboratory and Field Scales

Here, wet anaerobic storage of corn stover can provide a year-round supply of feedstock to biorefineries while reducing the risks associated with fire loss and microbial degradation. Aerobic and anaerobic storage methods were evaluated for wet corn stover in 100L laboratory reactors. Of the methods evaluated, traditional ensiling resulted in <6% total solid dry matter loss (DML), about 5 times less than the aerobic storage process and slightly less than half that of the anaerobic modified-Ritter pile method. To further demonstrate the effectiveness of the anaerobic storage, a field demonstration was completed with 272 dry tonnes of corn stover; DML averaged <5% after 6 months. Assessment of sugar release as a result of dilute acid or dilute alkaline pretreatment and subsequent enzymatic hydrolysis suggested that when anaerobic conditions were maintained in storage, sugar release was either similar to or greater than as-harvested material depending on the pretreatment chemistry used.
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  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Independent Researcher, Olathe, KS (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Emeryville, CA (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 2296-4185
Grant/Contract Number:
Published Article
Journal Name:
Frontiers in Bioengineering and Biotechnology
Additional Journal Information:
Journal Volume: 6; Journal Issue: 30; Journal ID: ISSN 2296-4185
Frontiers Research Foundation
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
Country of Publication:
United States
09 BIOMASS FUELS; corn stover; biomass storage; ensiling; Ritter pile; field storage; feedstock reactivity
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1471085