Synthesis of 5-hydroxymethyl furfural from cellulose via a two-step process in polar aprotic solvent

Fan, Guozhi; Wang, Yuexin; Hu, Zongxiao; Yan, Juntao; Li, Jianfen; Song, Guangsen

doi:10.1016/j.carbpol.2018.08.043

Cited by 25 publications

(16 citation statements)

References 49 publications

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“…Time t 1 for 1DF is about 17.03 s and for 2DF is about 9.81 s. However, the untreated sample (C), although featuring very high characteristic time t 1 , shows different behavior when exposed to CH 2 Cl 2 . This is due to the aprotic characteristic of CH 2 Cl 2 that does not participate in reactions with the hydroxyl group of cellulose, since there is no possibility of hydrogen bonding with this reactive group 27 …”

Section: Resultsmentioning

confidence: 99%

“…This is due to the aprotic characteristic of CH 2 Cl 2 that does not participate in reactions with the hydroxyl group of cellulose, since there is no possibility of hydrogen bonding with this reactive group. 27 Cellulose treated with PAA/PAH and 1DS has, instead, a faster surface gain during the initial step of the solvent uptake test (t 1 ), 3.15 and 2.68 s, respectively. They also reach a higher surface gain at equilibrium, 0.1534 and 0.1300 mm 2 , ascribable to the chemical affinity of additive agents with the CH2Cl2.…”

Section: Uptake Of Dichloromethane and Etoh Liquidmentioning

confidence: 90%

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Print base decorative paper with high‐dimensional stability by chemical fiber modification: An experimental and analytical approach

Barletta

Gisario

Mohammadzadeh

2020

J of Applied Polymer Sci

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The main structural component of wood fibers is cellulose, which, being highly hydrophilic, interacts with water. Cellulose-based paper has, therefore, the same affinity with water. However, for most products such as decorative paper, this is more of a disadvantage, where water uptake both as liquid and from humid air not only weakens the paper by breaking hydrogen bonds but also alters its dimension and stability over time. The dimensional stability (ability of the paper to retain the size as its moisture content changes) is a critical parameter when the paper is submitted to printing, copying, and converting operations. Humidity can cause sheet wrinkling or warping, thus compromising the processability and the results achievable. The modification of fibers with chemical additives can be a way to improve the performance of paper against water and water vapor uptake. For this reason, several tests of horizontal diffusion of solvents were carried out to evaluate the change in uptake of as-is paper and of papers modified by several different chemical treatments. Solvent uptake tests were performed to assess the interaction of chemically treated and untreated papers with water, dichloromethane, and ethanol. Diffusion mechanisms of the solvents flow within the fiber networks and their movement through the porous solids were analyzed. The chemical treatments of the fiber with silane, siloxane, and polyelectrolyte multilayer were found to considerably influence both solvent contact angles and absorption times of the papers, thus affecting the rate of solvent (more interestingly, of the water) diffusion into the fiber wall. By comparing all the treated and untreated samples, the contact angles with the solvents decreased by performing siloxane, oligosiloxane, and silane treatments. More specifically, the diffusivity rates of water decreased because of the disappearance of a fraction of the hydrophilic sites and the onset of higher crystallinity regions on the paper sheets.

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Section: Resultsmentioning

confidence: 99%

Section: Uptake Of Dichloromethane and Etoh Liquidmentioning

confidence: 90%

Print base decorative paper with high‐dimensional stability by chemical fiber modification: An experimental and analytical approach

Barletta

Gisario

Mohammadzadeh

2020

J of Applied Polymer Sci

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“…The conversion of carbohydrates to furans is a hot research topic in the biorefining of lignocellulose ( Li et al, 2016 ; Peleteiro et al, 2016 ; Fan et al, 2018 ). The acid-catalyzed hydrolysis and dehydration of pentosans in lignocellulose produces furfural.…”

Section: Catalytic Conversion Of Biomass To Furfural In Deep Eutectic...mentioning

confidence: 99%

Recent Advances in the Catalytic Conversion of Biomass to Furfural in Deep Eutectic Solvents

Zhang

Zhu

et al. 2022

Front. Chem.

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Lignocellulose is recognized as an ideal raw material for biorefinery as it may be converted into biofuels and value-added products through a series of chemical routes. Furfural, a bio-based platform chemical generated from lignocellulosic biomass, has been identified as a very versatile alternative to fossil fuels. Deep eutectic solvents (DES) are new “green” solvents, which have been employed as green and cheap alternatives to traditional organic solvents and ionic liquids (ILs), with the advantages of low cost, low toxicity, and biodegradability, and also have been proven to be effective media for the synthesis of biomass-derived chemicals. This review summarizes the recent advances in the conversion of carbohydrates to furfural in DES solvent systems, which mainly focus on the effect of adding different catalysts to the DES system, including metal halides, water, solid acid catalyst, and certain oxides, on the production of furfural. Moreover, the challenges and perspectives of DES-assisted furfural synthesis in biorefinery systems are also discussed in this review.

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“…The direct conversion of biomass resource into furfural compounds has been widely reported (Fan et al 2018; Mirzaei et al 2016). For example, 5-HMF and FUR were directly synthesized from Phyllostachys aureosulcata with yields at 30.6% and 17.9%, respectively (Sweygers et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Directional synthesis of furfural compounds from holocellulose catalyzed by sulfamic acid

Qiao

et al. 2021

Cellulose

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The coproduction of 5-hydroxymethylfurfural (5-HMF) and furfural (FUR) via the direct hydrolysis of holocellulose analogue composed of cellulose and hemicellulose was investigated. The effects of catalyst amount, solvent type and amount, reaction temperature and time using sulfamic acid with dual active sites as catalyst were also studied. The yields of 5-HMF and FUR at 37.2% and 62.0% were obtained with the volume ratio of γ-valerolactone to water of 25:1 at 180 o C for 3 h. The conversion of corn cob holocellulose and wheat straw holocellulose to furfural compounds was then carried out under the identical conditions. Yields of 5-HMF at 26.6% and 28.5%, and yields of FUR at 34.5% and 26.1% were obtained, respectively. A possible mechanism for the coproduction of 5-HMF and FUR from holocellulose was proposed. It is believed that there is a synergistic effect between the hydrolysis of cellulose and hemicellulose during the conversion of holocellulose.

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Synthesis of 5-hydroxymethyl furfural from cellulose via a two-step process in polar aprotic solvent

Cited by 25 publications

References 49 publications

Print base decorative paper with high‐dimensional stability by chemical fiber modification: An experimental and analytical approach

Print base decorative paper with high‐dimensional stability by chemical fiber modification: An experimental and analytical approach

Recent Advances in the Catalytic Conversion of Biomass to Furfural in Deep Eutectic Solvents

Directional synthesis of furfural compounds from holocellulose catalyzed by sulfamic acid

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