Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b

Cory Sarks, Bryan D. Bals, Jim Wynn, Farzaneh Teymouri, Stefan Schwegmann, Karyn Sanders, Mingjie Jin, Venkatesh Balan, Bruce E. Dale

    Research output: Contribution to journalArticle

    • 2 Citations

    Abstract

    This report outlines the recent scale-up of AFEX pretreatment from the laboratory to pilot scale. Sugar yields were improved by 19 and 15% for glucose and xylose, respectively. Further improvement was achieved when scaling up the hydrolysis and fermentation of AFEX-treated corn stover to 2500 L working volume. Benchmarking was performed using CTec 3 and HTec 3 enzymes along with Zymomonas mobilis 8b. Subsequently, the seed train was modified to use a hydrolysate-based medium as a replacement for pure sugars and nutrients. Fermentation performance was comparable following this change. Economic analysis showed a 19% reduction in MESP for the new process over the previous benchmark process.

    Original languageEnglish (US)
    Pages (from-to)1-15
    Number of pages15
    JournalBiofuels
    DOIs
    StateAccepted/In press - Jan 1 2016

    Profile

    benchmarking
    fermentation
    sugar
    maize
    Benchmarking
    Sugars
    Fermentation
    economic analysis
    train
    ethanol
    hydrolysis
    glucose
    replacement
    enzyme
    seed
    nutrient
    Xylose
    Economic analysis
    Nutrients
    Glucose

    Keywords

    • AFEX
    • commercialization
    • hydrolysis
    • Pelletization
    • seed train

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Waste Management and Disposal

    Cite this

    Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b. / Sarks, Cory; Bals, Bryan D.; Wynn, Jim; Teymouri, Farzaneh; Schwegmann, Stefan; Sanders, Karyn; Jin, Mingjie; Balan, Venkatesh; Dale, Bruce E.

    In: Biofuels, 01.01.2016, p. 1-15.

    Research output: Contribution to journalArticle

    Sarks C, Bals BD, Wynn J, Teymouri F, Schwegmann S, Sanders K et al. Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b. Biofuels. 2016 Jan 1;1-15. Available from, DOI: 10.1080/17597269.2015.1132368

    Sarks, Cory; Bals, Bryan D.; Wynn, Jim; Teymouri, Farzaneh; Schwegmann, Stefan; Sanders, Karyn; Jin, Mingjie; Balan, Venkatesh; Dale, Bruce E. / Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b.

    In: Biofuels, 01.01.2016, p. 1-15.

    Research output: Contribution to journalArticle

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