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

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

doi:10.1016/j.gee.2018.07.002

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

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

^*Corresponding author for this work

Lawrence Berkeley National Laboratory

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

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.

Original language	English
Pages (from-to)	432-438
Number of pages	7
Journal	Green Energy and Environment
Volume	4
Issue number	4
DOIs	https://doi.org/10.1016/j.gee.2018.07.002
Publication status	Published - Oct 2019
Externally published	Yes

Keywords

1-Ethyl-3-methylimidazolium acetate
Enzyme
Ionic liquid
Pretreatment
Scale up

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.gee.2018.07.002

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

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.",

keywords = "1-Ethyl-3-methylimidazolium acetate, Enzyme, Ionic liquid, Pretreatment, Scale up",

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

note = "Publisher Copyright: {\textcopyright} 2019 Institute of Process Engineering, Chinese Academy of Sciences",

year = "2019",

month = oct,

doi = "10.1016/j.gee.2018.07.002",

language = "English",

volume = "4",

pages = "432--438",

journal = "Green Energy and Environment",

issn = "2096-2797",

publisher = "KeAi Publishing Communications Ltd.",

number = "4",

}

TY - JOUR

T1 - Scale-up of biomass conversion using 1-ethyl-3-methylimidazolium acetate as the solvent

AU - Liang, Ling

AU - Yan, Jipeng

AU - He, Qian

AU - Luong, Tina

AU - Pray, Todd R.

AU - Simmons, Blake A.

AU - Sun, Ning

PY - 2019/10

Y1 - 2019/10

N2 - 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.

AB - 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.

KW - 1-Ethyl-3-methylimidazolium acetate

KW - Enzyme

KW - Ionic liquid

KW - Pretreatment

KW - Scale up

UR - http://www.scopus.com/inward/record.url?scp=85060241788&partnerID=8YFLogxK

U2 - 10.1016/j.gee.2018.07.002

DO - 10.1016/j.gee.2018.07.002

M3 - Article

AN - SCOPUS:85060241788

SN - 2096-2797

VL - 4

SP - 432

EP - 438

JO - Green Energy and Environment

JF - Green Energy and Environment

IS - 4

ER -

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

Abstract

Keywords

UN SDGs

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