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Article Navigation >  Green Energy&Environment  > 2019  >  4(4): 432-438
Ling Liang, Jipeng Yan, Qian He, Tina Luong, Todd R. Pray, Blake A. Simmons, Ning Sun. Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent. Green Energy&Environment, 2019, 4(4): 432-438. doi: 10.1016/j.gee.2018.07.002
Citation: Ling Liang, Jipeng Yan, Qian He, Tina Luong, Todd R. Pray, Blake A. Simmons, Ning Sun. Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent. Green Energy&Environment, 2019, 4(4): 432-438. doi: 10.1016/j.gee.2018.07.002
shu

Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent

doi: 10.1016/j.gee.2018.07.002
  • a.

    Advanced Biofuels and Bioproducts Process Development Unit, Lawrence Berkeley National Laboratory, Emeryville, CA, 94608, USA

  • b.

    Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Emeryville, CA, 94608, USA

More Information
  • Corresponding author: E-mail address: nsun@lbl.gov (Ning Sun)
  • Received date 26 April 2018, Accepted date 28 July 2018, RevRecd date 16 July 2018, Available online 14 August 2018, Publish date 31 October 2019,
    Abstract
  • This scale-up study demonstrated the feasibility of an ionic liquid (IL) pretreatment process at 40 kg scale, using the IL 1-ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]) as the solvent. The pretreatment was followed by enzymatic hydrolysis through which the process efficiency for biomass conversion to monomeric sugars was determined. The results show that 43 wt% of switchgrass was dissolved in IL after 2 h of pretreatment at 160 °C with 15 wt% solid loading. A 120 h enzymatic hydrolysis of the pretreated switchgrass results in 96% glucan and 98% xylan conversion. [C2C1Im][OAc] pretreatment has been successfully scaled up to 40 kg with improved sugar titers and yields relative to bench scale (6 kg). The mass flow of the overall process was established and the major scale-up challenges of the process were identified.

     

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