Simple and Efficient Furfural Production from Xylose in Media Containing 1-Butyl-3-Methylimidazolium Hydrogen Sulfate

Peleteiro, Susana; Lopes, André M. da Costa; Garrote, Gil; Parajó, Juan Carlos; Bogel‐Łukasik, Rafał

doi:10.1021/acs.iecr.5b01771

Cited by 67 publications

(31 citation statements)

References 42 publications

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“…For eucalyptus residues or wheat straw, further increase in the IL concentration demonstrated to have a negative effect on the pentose yield as was counterbalanced by predominant production of furfural. These results are not surprising since a high performance of acidic ILs towards furfural was often reported in literature [23][24][25]. One of the reason for this is that pentose conversion to furfural is a dehydration reaction therefore, a higher concentration of IL or in other words, a lower concentration of water may disturb the equilibrium existing in the system promoting the dehydration of pentoses towards furfural production.…”

Section: Biomass Pre-treatment With [Emim][hso4]supporting

confidence: 63%

The Effect of Chemical Character of Ionic Liquids on Biomass Pre-Treatment and Posterior Enzymatic Hydrolysis

Bernardo¹,

Gı́rio²,

Bogel‐Łukasik³

2019

Preprint

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Ionic liquids have been recognised as interesting solvents applicable in the efficient lignocellulosic biomass valorisation, especially in the biomass fractionation into individual polymeric components or direct hydrolysis some of biomass fractions. Considering the chemical character of ionic liquids, two different approaches, paved the way for a fractionation of biomass. The first strategy integrated a pre-treatment, hydrolysis and conversion of biomass through the employment of hydrogen-bond acidic 1-ethyl-3-methyimidazolim hydrogen sulfate ionic liquid. The second one relied on the use of a three-step fractionation process with hydrogen-bond basic 1-ethyl-3-methylimidazolium acetate to produce high purity cellulose, hemicellulose and lignin fractions. The proposed approaches were scrutinised for wheat straw and eucalyptus residues. Those different biomasses allowed understanding that enzymatic hydrolysis yields are dependent on the crystallinity of pre-treated biomass. The use of acetate based ionic liquid allowed to change crystalline cellulose I to cellulose II and consequently enhanced glucan to glucose yield to 93.14.1 mol% and 82.91.2 mol% for wheat straw and eucalyptus, respectively. Whereas for hydrogen sulfate ionic liquid, the same enzymatic hydrolysis yields were 61.6  0.2 mol% for wheat straw and only 7.90.3 mol% for eucalyptus residues. These results demonstrate the importance of either ionic liquid character or biomass type on the efficient biomass processing.

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Section: Biomass Pre-treatment With [Emim][hso4]supporting

confidence: 63%

The Effect of Chemical Character of Ionic Liquids on Biomass Pre-Treatment and Posterior Enzymatic Hydrolysis

Bernardo¹,

Gı́rio²,

Bogel‐Łukasik³

2019

Preprint

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“…Reaction medium is a critical factor determining the reaction environment in the transformation of biomass feedstocks to platform chemicals [54]. To study the role of the solvent, some organic solvents combined with saturated NaCl aqueous solution in 3:1 ratio were tested in the presence of FeCl 3 at 170 °C for 120 min (Fig.…”

Section: Monomeric Phenols From Rcf Of Eucalyptusmentioning

confidence: 99%

Total utilization of lignin and carbohydrates in Eucalyptus grandis: an integrated biorefinery strategy towards phenolics, levulinic acid, and furfural

Chen

Zhang

Xiao

et al. 2020

Biotechnol Biofuels

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Background: Lignocellulosic biomass, which is composed of cellulose, hemicellulose and lignin, represents the most abundant renewable carbon source with significant potential for the production of sustainable chemicals and fuels. Current biorefineries focus on cellulose and hemicellulose valorization, whereas lignin is treated as a waste product and is burned to supply energy to the biorefineries. The depolymerization of lignin into well-defined mono-aromatic chemicals suitable for downstream processing is recognized increasingly as an important starting point for lignin valorization. In this study, conversion of all three components of Eucalyptus grandis into the corresponding monomeric chemicals was investigated using solid and acidic catalyst in sequence. Results: Lignin was depolymerized into well-defined monomeric phenols in the first step using a Pd/C catalyst. The maximum phenolic monomers yield of 49.8 wt% was achieved at 240 °C for 4 h under 30 atm H 2. In the monomers, 4-propanol guaiacol (12.9 wt%) and 4-propanol syringol (31.9 wt%) were identified as the two major phenolic products with 90% selectivity. High retention of cellulose and hemicellulose pulp was also obtained, which was treated with FeCl 3 catalyst to attain 5-hydroxymethylfurfural, levulinic acid and furfural simultaneously. The optimal reaction condition for the co-conversion of hemicellulose and cellulose was established as 190 °C and 100 min, from which furfural and levulinic acid were obtained in 55.9% and 73.6% yields, respectively. Ultimately, 54% of Eucalyptus sawdust can be converted into well-defined chemicals under such an integrated biorefinery method. Conclusions: A two-step process (reductive catalytic fractionation followed by FeCl 3 catalysis) allows the fractionation of all the three biopolymers (cellulose, hemicellulose, and lignin) in Eucalyptus biomass, which provides a promising strategy to make high-value chemicals from sustainable biomass.

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“…Reference 1-Butyl-3-methylimidazolium hydrogensulfate, AlCl 3 Glucose 5-Ethoxymethyl furfural [166] 1-Butyl-3-methyl imidazolium chloride, polymeric solid catalysts Cellulose HMF [167,168] 1-Butyl-3-methyl imidazolium chloride or 1-Ethyl-3-methylimidazolium chloride and metal chlorides Switch grass HMF [169] N-methyl-2-pyrrolidonium methylsulfonate and 1-Butyl-3-methyl imidazolium chloride Fructose HMF [170] 1-Butyl-3-methyl imidazolium chloride, NH 4 Al(OH) 2 CO 3 in DMSO, sulfated zirconia, CrCl 3 , FeCl 3 and TiOSO 4 Glucose HMF [171,172,173] 1-Butyl-3-methyl imidazolium chloride with p-toluenesulfonic acid Fructose HMF [174] 1-Butyl-3-methyl imidazolium bromide, KL zeolite -NH 4 NO 3 Fructose HMF [175] N-Methylimidazolium hydrogensulfate N-acetyl-D-gluco-samine HMF [176] 1-(3-Propylsulfonic)-3-methylimidazolium hydrogensulfate in water Sugarcane bagasse, Hemicellulose Furfural [177,178] 1-Butyl-3-methyl imidazolium chloride and Et butyrate Cellulose HMF [168] 1-Butyl-3-methylimidazolium chloride and AlCl 4 Xylose and arabinose Furfural [179] 1-(3-Propylsulfonic)-3-methylimidazolium chloride, 1-Butyl-3-methylimidazolium hydrogensulfate Xylose Furfural [180,181,182] 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2...…”

Section: Ionic Liquid (Catalyst/solvent) Carbohydrate Dehydration Promentioning

confidence: 99%

Ionic Liquids in Biomass Processing

Amarasekara

2018

Israel Journal of Chemistry

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The ionic liquids have emerged as new solvents and catalysts for processing biomass to value added chemicals and fuels. This review will present the recent developments in applications of ionic liquids in lignocellulosic biomass pretreatments, depolymerization, biodiesel synthesis, dehydration of carbohydrates to renewable feedstock chemicals as well as further transformations of biomass derived feedstocks such as furfural, 5‐hydroxymethylfurfural and levulinic acid to value added chemicals. In addition, the recycling of ionic liquids used in biomass processing is also discussed in the review.

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Simple and Efficient Furfural Production from Xylose in Media Containing 1-Butyl-3-Methylimidazolium Hydrogen Sulfate

Cited by 67 publications

References 42 publications

The Effect of Chemical Character of Ionic Liquids on Biomass Pre-Treatment and Posterior Enzymatic Hydrolysis

The Effect of Chemical Character of Ionic Liquids on Biomass Pre-Treatment and Posterior Enzymatic Hydrolysis

Total utilization of lignin and carbohydrates in Eucalyptus grandis: an integrated biorefinery strategy towards phenolics, levulinic acid, and furfural

Ionic Liquids in Biomass Processing

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