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

Liang, Ling; Yan, Jipeng; He, Qian; Luong, Tina; Pray, Todd R.; Simmons, Blake A.; Sun, Ning

doi:10.1016/j.gee.2018.07.002

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

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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.

Authors:

; Yan, Jipeng; He, Qian;

; Pray, Todd R.;

; Sun, Ning

Publication Date:: Tue Oct 01 00:00:00 EDT 2019

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Biological and Environmental Research (BER)

OSTI Identifier:: 1686210

Alternate Identifier(s):: OSTI ID: 1581104

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Published Article

Journal Name:: Green Energy & Environment

Additional Journal Information:: Journal Name: Green Energy & Environment Journal Volume: 4 Journal Issue: 4; Journal ID: ISSN 2468-0257

Publisher:: Elsevier

Country of Publication:: China

Language:: English

Subject:: 09 BIOMASS FUELS

Citation Formats


                    Liang, Ling, Yan, Jipeng, He, Qian, Luong, Tina, Pray, Todd R., Simmons, Blake A., and Sun, Ning. Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent.  China: N. p., 2019. 
Web.  doi:10.1016/j.gee.2018.07.002.

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                    Liang, Ling, Yan, Jipeng, He, Qian, Luong, Tina, Pray, Todd R., Simmons, Blake A., & Sun, Ning. Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent.  China.  https://doi.org/10.1016/j.gee.2018.07.002

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                    Liang, Ling, Yan, Jipeng, He, Qian, Luong, Tina, Pray, Todd R., Simmons, Blake A., and Sun, Ning. Tue .  
"Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent".  China.  https://doi.org/10.1016/j.gee.2018.07.002.

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@article{osti_1686210,

  title        = {Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent},

  author       = {Liang, Ling and Yan, Jipeng and He, Qian and Luong, Tina and Pray, Todd R. and Simmons, Blake A. and Sun, Ning},

  abstractNote = {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.},

  doi          = {10.1016/j.gee.2018.07.002},

  journal      = {Green Energy & Environment},

  number       = 4,

  volume       = 4,

  place        = {China},

  year         = {Tue Oct 01 00:00:00 EDT 2019},

  month        = {Tue Oct 01 00:00:00 EDT 2019}

}

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