Ultra-Fast Selective Fructose Dehydration Promoted by a Kraft Lignin Sulfonated Carbon Under Microwave Heating

Nunes, Renan S.; Reis, Gabrielle M.; Vieira, Lígia Maria Mendonça; Mandelli, Dalmo; Carvalho, Wagner A.

doi:10.1007/s10562-020-03305-w

Cited by 12 publications

(29 citation statements)

References 33 publications

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“…The most common solvent for these studies, both in the production of furfural and HMF, is dimethylsulfoxide (DMSO), and it is used from highly aqueous to water-free systems (Table 2.1). [81][82][83][84][85][86][87][88][89][90][91][92][93][94][95] Highly aqueous conditions (7:3 v-v water-DMSO monophasic systems), paired with microwave heating and a metal catalyst (i.e., CrCl3 or Al(NO3)3), resulted in a relatively high fructose-to-HMF selectivity (approx. 65 mol%) when compared with fully aqueous monophasic conditions.…”

Section: Dimethylsulfoxidementioning

confidence: 99%

“…89 Using DMSO as the sole component of a monophasic system is rather common in the heterogeneously catalyzed production of furans both from xylose, glucose and fructose. 88,[90][91][92][93][94] Among heterogeneous catalysts, sulfonated solids (e.g., silica, carbon and palygorskite) are specifically used, always with sugar-to-furan selectivities >85 mol%. [90][91][92][93][94] Metal catalysts (e.g., Nb2O5) have also been successfully applied, specifically for the dehydration of fructose, with HMF production of approx.…”

Section: Dimethylsulfoxidementioning

confidence: 99%

“…88,[90][91][92][93][94] Among heterogeneous catalysts, sulfonated solids (e.g., silica, carbon and palygorskite) are specifically used, always with sugar-to-furan selectivities >85 mol%. [90][91][92][93][94] Metal catalysts (e.g., Nb2O5) have also been successfully applied, specifically for the dehydration of fructose, with HMF production of approx. 85-90 mol% selectivity.…”

Section: Dimethylsulfoxidementioning

confidence: 99%

“…When the water content of the system is limited or even absent, the characterization of the behavior of the acid catalyst is more complex. [84][85][86]88,[90][91][92][93][94]98,102,[106][107][108][109] The acid- catalyzed process of sugar dehydration involves a proton transfer from the catalyst onto the sugar, which affects the β-elimination of the hydroxyl groups. 1,22,[33][34][35][36][37][38][39][40] In mainly aqueous media, such proton transfer is mediated by water molecules, but with the decrease of the water content the catalyst activity increases.…”

Section: Aprotic Solvents In Mostly or Fully Organic Operationsmentioning

confidence: 99%

“…1,22,[33][34][35][36][37][38][39][40] In mainly aqueous media, such proton transfer is mediated by water molecules, but with the decrease of the water content the catalyst activity increases. 88,[90][91][92][93][94]98,102,[105][106][107][108][109] In some instances, this increase of the catalytic activity can be explained by a complete solubilization of the catalyst in the solvent system, or by a stabilization of the catalyst, which reduces its progressive deactivation. 86,101 However, this increased activity can also be approached from a more fundamental point of view, which includes the inherent process of proton transfer, involved in the acid catalysis of the dehydration reaction.…”

Section: Aprotic Solvents In Mostly or Fully Organic Operationsmentioning

confidence: 99%

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Furfural manufacture from xylose : routes towards high selectivity and novel processes

Ricciardi

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Planet Earth is facing a human-induced climate crisis. 1 Scientists from numerous nations have raised concern about this issue at various instances in the past, with one of the latest public warning having arrived in January 2020. 1 The alarming trends observed in the parameters that we use to describe climate and environment (e.g., desertification, availability of fresh water, air pollution) show that drastic, politically driven changes are urgently necessary. 1 With greenhouse gas (GHG) emissions still rapidly rising, and most public discussions focused on global surface temperature only, it is of fundamental importance to understand that this environmental crisis is related to social and economic factors embedded in our society. 1,2 In parallel, and strongly related, to the climate crisis, our society is facing an energy crisis, which is directly connected to the steep rise in energy demand. 3,4 These two crises are intertwined, since the combustion of crude oil, natural gas and coal still is the primary energy sources worldwide, both for transportation of people and goods, fueling industry and infrastructures, and for ensuring the stability of the energy grid. 4 The product of combustion of these fossil fuels is CO2, which is an important contributor to the greenhouse effect. The increased energy demand is due to worldwide industrial development, coupled with an average increase of wealth. [3][4][5] This scenario, in combination with the increasing costs of extraction and manufacture of fossil fuels, is becoming a troubling bottleneck for economic development. [3][4][5] Currently, the addition of green and/or renewable sources of energy (e.g., hydroelectric, solar, wind and nuclear energy) is rapidly growing. 5 Yet, we must realize that just compensating the growing energy demand with these 'clean' energy sources is not sufficient. Reducing the (absolute) contributions of fossil fuels to the energy palette is absolutely necessary to act on the climate crisis and reduce, for example the CO2 levels in the atmosphere. 5 Making humanity fully independent from fossil fuels is an incredibly complex task. 1,2 To do so, the chain of production and consumption of energy, at all levels, needs to be redesigned with drastic, both politically and economically driven international choices. 1,2 Next to these necessary societal changes, research is needed to explore possible alternatives for fossil fuels, which would ease this transition with the aim to avoid, or minimize, an economic crisis. [1][2][3][4][5] Particularly, some sectors of industry and transportation, e.g., heavy industry and aviation, are extremely challenging to decarbonize and cannot solely rely on solar and wind energy, requiring the development of renewable fuels and chemicals. 6 Reducing, and finally eliminating, fossil resources such as oil is exceptionally complex, as these resources are also the basis for the current petrochemical industry. 6,7 The petrochemical industry, one of the largest during the last century, continues to grow t...

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Section: Dimethylsulfoxidementioning

confidence: 99%

Section: Dimethylsulfoxidementioning

confidence: 99%

Section: Dimethylsulfoxidementioning

confidence: 99%

Section: Aprotic Solvents In Mostly or Fully Organic Operationsmentioning

confidence: 99%

Section: Aprotic Solvents In Mostly or Fully Organic Operationsmentioning

confidence: 99%

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Furfural manufacture from xylose : routes towards high selectivity and novel processes

Ricciardi

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The Impact of the Ratio Between Stronger and Weaker Acid Sites on the Production of 5‐Hydroxymethylfurfural and Furfural from Monosaccharides

Vieira,

Alves Santos,

Ribeiro

et al. 2024

ChemCatChem

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Sulfonated carbons and commercial Amberlyst 15 and 45 served as model catalysts to explore the impact of the ratio between stronger and weaker acid sites (NS/NW) on 5‐hydroxymethylfurfural (HMF) and furfural production from fructose and xylose. Catalysts with varying structural and surface properties, and consequently different NS/NW ratios, were prepared from diverse templated mesoporous carbons and distinct sulfonation methods. HMF or furfural yields exhibited an exponential correlation with the NS/NW ratio. However, the catalytic activity per site (TON) displayed a volcano‐like plot, reaching a maximum between NS/NW = 2 – 4. Consequently, our findings suggest the involvement of both strong (sulfonic acid) and weak acid (surface carboxylic acid, alcohol, and phenol groups) sites in monosaccharide dehydration mechanisms. These insights may guide the development of novel catalysts.

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Recent reaction systems for the synthesis of 5‐hydroxymethylfurfural (HMF) from carbohydrates with process development analysis: A review

Rani

Karim

Kamarudin

2022

Intl J of Energy Research

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Summary 5‐Hydroxymethylfurfural (HMF) is a versatile biomass‐derived chemical from multifunctional compound. It is also a promising intermediate compound used in various chemical and fuel applications, including pharmaceuticals, solvents, biofuel, and other intermediates. The demand for innovative approaches to renewable energy resources has risen to diminish the dependency on petroleum‐based products and to seek economical and environmentally friendly processes for supplying energy to the world. Fructose, glucose, cellulose, and lignocellulosic materials are the most common feedstocks used to synthesize HMF. This study reviews previous studies on the development of high yield and selectivity of HMF from technical and economic perspectives. The article highlights a few significant parameters and focused on the solvent system used for the synthesis of HMF in the lab scale and through the development of process modeling using simulation software such as Aspen Plus to perform the techno‐economic analysis (TEA), which analyses the economic feasibility of the developed production process. The TEA can estimate the capital investment needed, including feedstock, catalyst, and equipment cost, and the final product's minimum selling price (MSP). HMF is cost‐efficient due to higher operational costs from the higher cost of fructose feedstock. By studying this analysis, the overall cost of HMF production can be minimized and more economically competitive with current commercial production. Besides, to make the production of HMF more cost‐effective, more research into alternative lignocellulosic feedstocks and the development of novel catalytic systems is needed.

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Ultra-Fast Selective Fructose Dehydration Promoted by a Kraft Lignin Sulfonated Carbon Under Microwave Heating

Cited by 12 publications

References 33 publications

Furfural manufacture from xylose : routes towards high selectivity and novel processes

Furfural manufacture from xylose : routes towards high selectivity and novel processes

The Impact of the Ratio Between Stronger and Weaker Acid Sites on the Production of 5‐Hydroxymethylfurfural and Furfural from Monosaccharides

Recent reaction systems for the synthesis of 5‐hydroxymethylfurfural (HMF) from carbohydrates with process development analysis: A review

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