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Flow-Through Pretreatment of Corn Stover by Recycling Organosolv to Reduce Waste Solvent

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  • Yong Cheol Park

    (Department of Chemical Engineering, Kyonggi University, Suwon 16227, Korea)

  • Tae Hyun Kim

    (Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Korea)

  • Jun Seok Kim

    (Department of Chemical Engineering, Kyonggi University, Suwon 16227, Korea)

Abstract

In this study, the optimum conditions for pretreatment of corn stover using organosolv were determined. The predicted optimum conditions, determined using the response surface methodology, were ethanol concentration of 56.6 wt %, reaction temperature of 187.5 °C, and 320 mL of liquid throughput. Moreover, the pretreatment using recycled organosolv was carried out under the predicted optimum conditions. The pretreatment effect of the organosolv decreased as the organosolv was reused in the pretreatment process. When performing pretreatment with the initial organosolv, enzymatic digestibility for glucan was 71.0%. The digestibility was reduced as low as less than 66% in the first reuse process. Nevertheless, when repeatedly reusing the organosolv, the glucan digestibility remained mostly stable. It was confirmed that organosolv can be reused in the flow-through pretreatment of corn stover.

Suggested Citation

  • Yong Cheol Park & Tae Hyun Kim & Jun Seok Kim, 2018. "Flow-Through Pretreatment of Corn Stover by Recycling Organosolv to Reduce Waste Solvent," Energies, MDPI, vol. 11(4), pages 1-8, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:879-:d:140382
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    References listed on IDEAS

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    1. Park, Yong Cheol & Kim, Jun Seok, 2012. "Comparison of various alkaline pretreatment methods of lignocellulosic biomass," Energy, Elsevier, vol. 47(1), pages 31-35.
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    1. Yong Cheol Park & Jun Seok Kim & Tae Hyun Kim, 2018. "Pretreatment of Corn Stover Using Organosolv with Hydrogen Peroxide for Effective Enzymatic Saccharification," Energies, MDPI, vol. 11(5), pages 1-9, May.
    2. Clauser, Nicolás M. & Felissia, Fernando E. & Area, María C. & Vallejos, María E., 2021. "A framework for the design and analysis of integrated multi-product biorefineries from agricultural and forestry wastes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).

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