Efficient conversion of carbohydrates and biomass into furan compounds by chitin/Ag co-modified H3PW12O40 catalysts

Lai, Fengjiao; Yan, Feng; Wang, Pengju; Li, Chunyan; Shen, Xuehua; Zhang, Zuotai

doi:10.1016/j.jclepro.2021.128243

Cited by 17 publications

(5 citation statements)

References 61 publications

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“…Yang et al studied that 53% furfural and 17.0% of 5-HMF were yielded with the catalyst SO 3 H-NG-C in the presence of GVL with only 1.3% solid loading and a high reaction temperature of 190 °C [ 34 ]. Lai et al also reported a relatively high yield of furfural with 53.0% and 5-HMF at 25.6% in the H 2 O-MIBK system with 3.3% solid loading at 170 °C for 180 min [ 35 ]. By comparison, the method carried out in this study not only obtained a high yield of 5-HMF and furfural with corn stover as the feedstock but also did perform in high solid loading (10%) for substrate and relatively low reaction temperature.…”

Section: Resultsmentioning

confidence: 99%

Transformation of Corn Stover into Furan Aldehydes by One-Pot Reaction with Acidic Lithium Bromide Solution

Gao

Xin

Sun

et al. 2022

IJMS

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Currently, the production of furan aldehydes from raw biomass suffers from low furfural yield and high energy consumption. In this study, a recyclable and practical method was explored for the preparation of furfural from corn stover by the one-pot reaction by acidic lithium bromide solution (ALBS) without pretreatment and enzymolysis. In the ALBS reaction, the furan aldehydes were generated by the degradation of lignocellulose; however, the products were unstable and were further dehydrated to form humins. So, dehydration reaction was inhibited in this study, and the high yield of furan aldehydes was obtained, in which 2.94 g/L of furfural and 2.78 g/L of 5-hydroxymethyl furfural (5-HMF) were generated with high solid loading (10 wt%), the presence of commercial catalyst ZSM-5 and co-solvent tetrahydrofuran (THF) at 140 °C for 200 min. Via this method, almost 100% of hemicellulose was transformed to furfural, and 40.71% of cellulose was transformed to 5-HMF, which was based on the theoretical yield of HMF (8.35 g) from glucose (29.30 g) produced from cellulose. After the reaction, the catalyst ZSM-5 was the main component in the solid residue and kept a suitable performance. THF azeotrope was easily separated from the slurry by evaporation. During the removal of THF, lignin was precipitated from the liquid phase and showed lower molecular weight and abundant active groups, which was a potential feedstock for producing valuable aromatics and polymers. Thus, in a one-pot reaction, the ideal yield of furan aldehydes from raw biomass was obtained on a lab scale, and the catalyst, THF, and LiBr were easily recycled, which provided an option to realize the economical production of sustainable furan aldehydes from raw biomass.

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Section: Resultsmentioning

confidence: 99%

Transformation of Corn Stover into Furan Aldehydes by One-Pot Reaction with Acidic Lithium Bromide Solution

Gao

Xin

Sun

et al. 2022

IJMS

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“…Subsequently, the formed HMF was stabilized by the hydrophobic Ch + and extracted by MIBK that, together with the low Brønsted acidity of ChH 2 PW 12 O 40 , allowed the enhancement of the HMF yield, limiting the formation of levulinic and formic acids. Lai et al prepared the catalyst treating the heteropolyacid H 3 PW 12 O 40 with AgNO 3 , obtaining the exchange of a proton of the heteropolyacid with Ag + , and chitin, which introduced Lewis acid sites and increased the stability of the catalyst, respectively [133]. The authors employed the prepared catalyst in the synthesis of HMF from 3.2 wt% of corn stover, rice straw, or bagasse, achieving, under the same reaction conditions, HMF yields of 26, 20, and 19 mol%, respectively (runs 144-146, Table 6).…”

Section: Biphasic And/or Multiple-solvent Systemsmentioning

confidence: 99%

Novel Challenges on the Catalytic Synthesis of 5-Hydroxymethylfurfural (HMF) from Real Feedstocks

et al. 2022

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The depletion of fossil resources makes the transition towards renewable ones more urgent. For this purpose, the synthesis of strategic platform-chemicals, such as 5-hydroxymethylfurfural (HMF), represents a fundamental challenge for the development of a feasible bio-refinery. HMF perfectly deals with this necessity, because it can be obtained from the hexose fraction of biomass. Thanks to its high reactivity, it can be exploited for the synthesis of renewable monomers, solvents, and bio-fuels. Sustainable HMF synthesis requires the use of waste biomasses, rather than model compounds such as monosaccharides or polysaccharides, making its production more economically advantageous from an industrial perspective. However, the production of HMF from real feedstocks generally suffers from scarce selectivity, due to their complex chemical composition and HMF instability. On this basis, different strategies have been adopted to maximize the HMF yield. Under this perspective, the properties of the catalytic system, as well as the choice of a suitable solvent and the addition of an eventual pretreatment of the biomass, represent key aspects of the optimization of HMF synthesis. On this basis, the present review summarizes and critically discusses the most recent and attractive strategies for HMF production from real feedstocks, focusing on the smartest catalytic systems and the overall sustainability of the adopted reaction conditions.

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“…Many researchers have used MIBK in conjunction with heteropolyacid catalysts, for example, Lai et al used chitin/Ag comodified H 3 PW 12 O 40 composites (Chx-AgPW) in an MIBK-water system (V MIBK :V water = 6:4), nearly 100% glucose conversion and 78.3% yield of 5-hydroxymethylfurfural were obtained. 31 Lai et al synthesized a catalyst using H 5 CeW 12 O 40 and choline chloride, which converted cellulose into HMF in the H 2 O/ DMSO/MIBK (1:2:7) two-phase system with a yield of 67.5%. 32 In this study, we introduced a temperature-responsive catalyst, ChAl X H 3−3X SiW 12 O 40 , by incorporating choline chloride and aluminum into silicotungstic acid.…”

Section: Introductionmentioning

confidence: 99%

“…Biphasic solvent systems can transfer the products generated in the aqueous phase to the organic phase, thereby promoting the reaction and inhibiting side reactions. Many researchers have used MIBK in conjunction with heteropolyacid catalysts, for example, Lai et al used chitin/Ag comodified H 3 PW 12 O 40 composites (Chx-AgPW) in an MIBK-water system ( V MIBK : V water = 6:4), nearly 100% glucose conversion and 78.3% yield of 5-hydroxymethylfurfural were obtained . Lai et al synthesized a catalyst using H 5 CeW 12 O 40 and choline chloride, which converted cellulose into HMF in the H 2 O/DMSO/MIBK (1:2:7) two-phase system with a yield of 67.5% …”

Section: Introductionmentioning

confidence: 99%

Catalytic Conversion of Glucose to Levulinic Acid over Temperature-Responsive Al-Doped Silicotungstic Acid Catalyst

Wang,

Lu,

Zhao

et al. 2024

Energy Fuels

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Converting renewable biomass into liquid fuels and value-added chemicals has emerged as a pivotal technology, driving the transformation of the energy landscape. Efficiently transforming the cellulose components of biomass into the crucial liquid fuel precursor levulinic acid holds profound significance. The principal objective of this study is to fabricate a temperature-responsive catalyst based on Al-doped silicotungstic acid, which is intended for converting glucose into levulinic acid. By exploiting the interaction between choline chloride and silicotungstic acid, which exhibits a notable capacity for high proton migration, we successfully synthesized a stable acid catalyst with responsive properties to temperature changes. Through precise adjustments of Al 3+ concentration, we engineered a collection of Lewis/Brønsted composite catalysts capable of responding to temperature variations. A comprehensive analysis of the catalyst's structure and acidity was conducted using various techniques including FTIR, XRD, TEM, and Py-IR. These methods revealed crucial insights into the crystalline architecture, surface morphology, and distribution of acidic domains, providing a solid foundation for a deeper understanding of the catalytic reaction mechanism. Through the meticulous optimization of key reaction parameters, including Al 3+ loading, solvent composition, reaction temperature, and reaction duration, the ChAl 2/3 HSiW 12 O 40 catalyst achieved its pinnacle of efficiency at 150 °C over an 8 h period. This resulted in the remarkable outcome of complete glucose conversion, yielding an impressive 62.01% of levulinic acid. Additionally, an evaluation of the catalyst's recyclability was carried out, demonstrating its commendable hydrothermal stability and ability for repetitive usage without any reduction in catalytic efficiency.

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Efficient conversion of carbohydrates and biomass into furan compounds by chitin/Ag co-modified H3PW12O40 catalysts

Cited by 17 publications

References 61 publications

Transformation of Corn Stover into Furan Aldehydes by One-Pot Reaction with Acidic Lithium Bromide Solution

Transformation of Corn Stover into Furan Aldehydes by One-Pot Reaction with Acidic Lithium Bromide Solution

Novel Challenges on the Catalytic Synthesis of 5-Hydroxymethylfurfural (HMF) from Real Feedstocks

Catalytic Conversion of Glucose to Levulinic Acid over Temperature-Responsive Al-Doped Silicotungstic Acid Catalyst

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