Synthesis of sulfonated lignin-derived ordered mesoporous carbon for catalytic production of furfural from xylose

Wang, Xiaoqi; Qiu, Mo; Tang, Yiwei; Yang, Jirui; Shen, Feng; Qi, Xinhua; Yu, Yingliang

doi:10.1016/j.ijbiomac.2021.07.155

Cited by 40 publications

(22 citation statements)

References 40 publications

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“…Moreover, the improvement of furfural yield and xylose conversion could be implemented by adjusting the operating conditions such as the total catalyst concentration, the xylose feed concentration, and the proportion of the two catalysts. Compared to the heterogeneous-based process, 29,30 our process provided a significant improvement in terms of reaction time and temperature. For instance, in the work of Wang et al (2021), 30 the conversion of xylose performed at 200 °C and 45 min provided the furfural yield of 76.6%.…”

Section: Resultsmentioning

confidence: 95%

“…Compared to the heterogeneous-based process, 29,30 our process provided a significant improvement in terms of reaction time and temperature. For instance, in the work of Wang et al (2021), 30 the conversion of xylose performed at 200 °C and 45 min provided the furfural yield of 76.6%. Another concern with the use of these solid catalysts was catalyst stability.…”

Section: Resultsmentioning

confidence: 99%

“…(2021), 30 the conversion of xylose performed at 200 C and 45 min provided the furfural yield of 76.6%. Another concern with the use of these solid catalysts was catalyst stability.…”

Section: Effect Of Operating Conditions On Furfural Yieldmentioning

confidence: 99%

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Continuous hydrothermal furfural production from xylose in a microreactor with dual-acid catalysts

2022

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

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Continuous hydrothermal furfural production from xylose in a microreactor with dual-acid catalysts

2022

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“…It could be transformed to xylose and after furfural by dehydration at high temperatures [ 16 ] ( Figure 2 B). Wang et al [ 29 ] reported a yield of 76.6% of furfural from commercial xylose and using mesoporous carbon derived from sulfonated lignin, initiating the 100% conversion of xylose to hydrolysis at 200 °C for 45 min.…”

Section: Resultsmentioning

confidence: 99%

Thermal Treatment to Obtain 5-Hydroxymethyl Furfural (5-HMF), Furfural and Phenolic Compounds from Vinasse Waste from Agave

et al. 2023

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Vinasses represent important final disposal problems due to their physical-chemical composition. This work analyzed the composition of tequila vinasses and increased 5-hydroxymethylfurfural, furfural, and phenolic compounds using thermal hydrolysis with hydrogen peroxide as a catalyst. A statistical Taguchi design was used, and a UPLC-MS (XEVO TQS Micro) analysis determined the presence and increase of the components. The treatment at 130 °C, 40 min, and 0.5% of catalyst presented the highest increase for 5-HMF (127 mg/L), furfural (3.07 mg/L), and phenol compounds as chlorogenic (0.36 mg/L), and vanillic acid (2.75 mg/L). Additionally, the highest removal of total sugars (57.3%), sucrose (99.3%), and COD (32.9%). For the treatment T130:30m:0P the syringic (0.74 mg/L) and coumaric (0.013 mg/L) acids obtained the highest increase, and the treatment T120:30m:1P increased 3-hydroxybenzoic (1.30 mg/L) and sinapic (0.06 mg/L) acid. The revaluation of vinasses through thermal treatments provides guidelines to reduce the impact generated on the environment.

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“…17,18 In the literature, it has been reported that humins can account for as much as 50% in carbon loss in the thermochemical conversion of carbohydrates and biomassrelated compounds 19,20 and that humins lower catalyst lifetime, complicate general processing and have low economic benefit. 21,22 Many researchers study the effect of reaction time, temperature, pH, catalyst loading, and other factors 23 with express intention to increase product yields and reduce the amounts of humins formed. Although humins are generally recognized to be undesirable, this work proposes a method for their use as carbon precursors for the synthesis of ordered materials.…”

Section: ■ Introductionmentioning

confidence: 99%

Unwanted Humins─Promising Precursors for Ordered Mesoporous Carbons

Chen

Smith

et al. 2023

ACS Sustainable Chem. Eng.

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Humins, which are intractable carbon byproducts formed during thermochemical conversion of carbohydrates, are considered to be undesirable because of their adverse effects on product yields, catalyst activity, stability, and recycling. Herein, we show that the alcohol-soluble fraction of humins can be used to directly synthesize ordered mesoporous carbons (OMCs) by the classical solvent evaporation-induced self-assembly (EISA) method without the use of aldehydes or metal ion cross-linkers. The key mechanistic feature of the self-assembly of alcohol (ethanol)-soluble humins is that ulmic acid-containing humins act to cross-link micelles according to condensation reactions occurring in humins formation. The prepared OMCs show well-defined two-dimensional (2D) hexagonal mesoporous structures having uniform pore sizes (3.5 to 4.8 nm), high surface areas (∼600 m2 g–1), and pore volumes (∼0.4 cm3 g–1). Using dyes as model pollutants, selective adsorption of OMCs for macromolecular organic pollutants was confirmed, thus the resulting OMC materials appear to have many technological applications. The method proposed for humins conversion to ordered materials may serve as a simple and green way to utilize undesirable and commonly generated humins in carbohydrate conversions, which should improve the sustainability of carbohydrate transformation schemes and broaden the scope of biomass-based or natural humic acid precursors.

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Synthesis of sulfonated lignin-derived ordered mesoporous carbon for catalytic production of furfural from xylose

Cited by 40 publications

References 40 publications

Continuous hydrothermal furfural production from xylose in a microreactor with dual-acid catalysts

Continuous hydrothermal furfural production from xylose in a microreactor with dual-acid catalysts

Thermal Treatment to Obtain 5-Hydroxymethyl Furfural (5-HMF), Furfural and Phenolic Compounds from Vinasse Waste from Agave

Unwanted Humins─Promising Precursors for Ordered Mesoporous Carbons

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