Liquid phase conversion of lignocellulosic biomass using biphasic systems

Zimmermann, Coy J.; Bollar, Nathan V.; Wettstein, Stephanie G.

doi:10.1016/j.biombioe.2018.08.009

Cited by 31 publications

(25 citation statements)

References 63 publications

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“…To facilitate cellulose conversion, lignocellulose complex is thus often fractionated to reduce biomass recalcitrance and make cellulose more accessible . Various methods, such as dilute acid pretreatment, alkali pretreatment, and steam explosion, have been used for biomass fractionation . In addition to reducing biomass recalcitrance, unit operation with high solid loading is another strategy to reduce energy consumption and save the overall production costs .…”

Section: Introductionmentioning

confidence: 99%

“…2 Various methods, such as dilute acid pretreatment, alkali pretreatment, and steam explosion, have been used for biomass fractionation. 3,4 In addition to reducing biomass recalcitrance, unit operation with high solid loading is another strategy to reduce energy consumption and save the overall production costs. 5 Economic analysis has shown that doubled biomass loading can contribute to a significant reduction of the minimum ethanol selling price.…”

Section: Introductionmentioning

confidence: 99%

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Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Zang

Shah

Chen

2020

Biofuels Bioprod Bioref

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This study analyzed the techno‐economic feasibility of a biomass conversion process enabled by high‐solid loading deep eutectic solvent (DES) pretreatment for the co‐production of 2,3‐butanediol (BDO), furfural, and technical lignin. Aspen plus was used for process simulation; economic analysis models were developed to evaluate commercial potential; sensitivity analysis was carried out to evaluate the effects of key parameters on the production cost of 2,3‐BDO; and Monte‐Carlo simulation was used for uncertainty analysis. Two cases of high‐solid loading pretreatment (20% versus 27%) for DES pretreatment were compared. The process simulation results indicate that 78–79% of cellulose, 63–70% of xylan, and 40–44% of lignin in raw switchgrass are converted into 2,3‐BDO, furfural, and technical lignin, respectively. The minimum 2,3‐BDO selling price (MBSP) of these two cases is estimated to be 1703–1736 $ ton−1, which is about half of the current 2,3‐BDO market price. Sensitivity analyses show that the prices and recycle ratios of acetone and methyl isobutyl ketone (MIBK) have larger impacts on the MBSP, which indicates that further technical improvement should focus on reducing their consumption. The uncertainty analysis indicates that 20 and 27% solid loading systems have similar confident intervals, with 90% confidence interval of MBSP ranging from 1450–1990 $ ton−1. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Zang

Shah

Chen

2020

Biofuels Bioprod Bioref

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“…The growing concern about global climate change has encouraged the development of renewable alternatives to obtain fuels and chemicals, introducing the "bio-refinery" concept and promoting the use of biomass as carbon source in chemical processes [1,2]. In this context, the transformation of residual lignocellulosic biomass into biofuels by aqueous-phase reactions is one of the most promising strategies [3][4][5][6], highlighting the four-step route firstly proposed by Dumesic and co-workers [7]. The aldol condensation of furfural (FFL) using a ketone as linking molecule is the key step of this process.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the process conditions for minimizing the deactivation in the furfural-cyclopentanone aldol condensation in a continuous reactor

Cueto

Faba

Dı́az

et al. 2020

Applied Catalysis B: Environmental

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“…11,12 Some recent studies focused on using biphasic systems to fractionate the biomass into cellulose, hemicelluloses, and lignin, in three distinct phases in a one-pot reactor approach. 12 Among them, butanol was selected as a hydrophobic green solvent. 15,16 A resurgence of interest in sustainable production of biobutanol ensured by biorefineries through fermentation by Clostridium acetobutylicum using renewable substrates (glucose) motivates this choice.…”

Section: ■ Introductionmentioning

confidence: 99%

Versatility of a Dilute Acid/Butanol Pretreatment Investigated on Various Lignocellulosic Biomasses to Produce Lignin, Monosaccharides and Cellulose in Distinct Phases

Schmetz

Teramura

Morita

et al. 2019

ACS Sustainable Chem. Eng.

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An organosolv pretreatment consisting of an H 2 SO 4 /n-butanol biphasic system was designed to separate lignocellulosic biomass in three distinct phases: a cellulose-rich solid residue, hydrolyzed hemicelluloses in an aqueous phase, and lignin dissolved in a hydrophobic butanol phase. In the present study, the versatility of the process was investigated on materials of various compositions and origins: sugar cane bagasse, tall fescue, sugar beet pulp, eucalyptus, beech, and Japanese cedar. The efficiency was assessed in terms of lignin removal from the raw biomass and purity of the recovered cellulosic residue using the Klason method as well as improvement on enzymatic saccharification (increased from 18.7% to 96%). Results were correlated to biomass types and composition, and in comparison to an organic solvent-free method (dilute acid). Up to 81% cellulose purity corresponding to 87% lignin removal was achieved. Results were corroborated by scanning electron microscopy showing an absence of lignin deposition. Lignin molecular weight (GPC), structure (2D-HSQC NMR), recovery, and purity (up to 96%) have been investigated. Moreover, organic compounds responsible for fermentation inhibition were partially solubilized in the butanol, decreasing the concentration in the aqueous phase. Efficient butanol pretreatment applied on hardwood, bagasse, and herbaceous matter is promising. However, Japanese cedar (softwood) was too recalcitrant for this process.

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Liquid phase conversion of lignocellulosic biomass using biphasic systems

Cited by 31 publications

References 63 publications

Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Optimization of the process conditions for minimizing the deactivation in the furfural-cyclopentanone aldol condensation in a continuous reactor

Versatility of a Dilute Acid/Butanol Pretreatment Investigated on Various Lignocellulosic Biomasses to Produce Lignin, Monosaccharides and Cellulose in Distinct Phases

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