Pt-WO3 oxydehydrates fructose to furans in the gas phase

Carnevali, Davide; D’Oliveira, Adrien; Rigamonti, Marco G.; Cavani, Fabrizio; Patience, Gregory S.

doi:10.1016/j.cej.2021.132337

Cited by 3 publications

(4 citation statements)

References 62 publications

(55 reference statements)

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“…The dehydration was performed at a high fructose concentration (24% w/w) in a solvent system at ambient pressure. Using 10% catalyst amount without salt in different ratios of DMSO and MIBK, the reaction resulted in approximately 80% yield of 5-HMF in 3 to 4 h (Figure A) as in a previous report . Meanwhile, using an even lower catalyst amount (5%) with salt, the reaction significantly progressed and was completed within 1 h (Figure B).…”

Section: Resultssupporting

confidence: 78%

“…Using 10% catalyst amount without salt in different ratios of DMSO and MIBK, the reaction resulted in approximately 80% yield of 5-HMF in 3 to 4 h (Figure 3A) as in a previous report. 30 Meanwhile, using an even lower catalyst amount (5%) with salt, the reaction significantly progressed and was completed within 1 h (Figure 3B). The increase in the amount of NaCl (from 1.7 to 3.3 to 6.7%) could slightly increase the reaction rate while significantly increasing the 5-HMF yield from 40% without salt to approximately 80% (Figure 3C).…”

Section: Dehydration Of High-concentrationmentioning

confidence: 99%

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Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H⁺ Exchange Heterogeneous Catalysis

Thuy Vu,

Liu,

Jonušis

et al. 2023

ACS Sustainable Chem. Eng.

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This study focuses on the characterization of NaCl-induced enhancement of H+ exchange catalysis and preparation of the renewable C6 platform chemical, 5-(hydroxymethyl)furfural (5-HMF), through dehydration of fructose and glucose, C6-sugars, utilizing a heterogeneous catalyst. The effect of a catalytic amount of NaCl was explored to enhance the H+ exchange of cation exchangers, characterized on the distortion of tetrahedral sulfonates due to the formation of direct ionic bonds with Na+, as observed by FT-IR. Dehydration of high concentrations of C6-sugars (24%, w/v) was carried out as a one-pot multistep reaction to synthesize 5-HMF in DMSO/MIBK (0.35/0.65) at temperatures ranging from 110 to 120 °C under ambient pressure. Cation exchangers (hydrogen form) were employed as catalysts in amounts ranging from 2.5% to 10% (w/w). The addition of NaCl resulted in a decrease in the pH of both water and organic solvents, leading to improved H+ exchange on cation exchangers. Consequently, this facilitated a reduction in catalyst quantity and significantly enhanced the dehydration of fructose and glucose to 5-HMF. At 110 °C, fructose achieved a 99% conversion rate with an 81% 5-HMF yield within 1 h, while at 120 °C, glucose conversion reached 92.2% with a 36.1% 5-HMF yield over 11 h. Furthermore, the catalyst exhibited consistent activity across at least five consecutive fructose dehydration batches. The NaCl-induced enhancement of H+ exchange catalysis was first proposed and successfully demonstrated for the dehydration of C6-sugars in the organic phase. This concept can be extended to various organic synthesis reactions using cation exchangers in both aqueous and organic systems, with the aim of reducing the catalyst amount and facilitating the reaction rate.

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Section: Resultssupporting

confidence: 78%

Section: Dehydration Of High-concentrationmentioning

confidence: 99%

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H⁺ Exchange Heterogeneous Catalysis

Thuy Vu,

Liu,

Jonušis

et al. 2023

ACS Sustainable Chem. Eng.

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“…The support pores host most of the active metal oxides, with only a few nanoparticles (NPs) visible on the external surface (<0.5 wt %, geometrical estimation based on the average number of NPs and the size and density of MO x per particle of alumina), and we cannot appreciate any morphological variation. Coke is also not visible, and we assume it forms in the porosity of the support, rather than on the surface of external NP metal oxides …”

Section: Resultsmentioning

confidence: 95%

“…Coke is also not visible, and we assume it forms in the porosity of the support, rather than on the surface of external NP metal oxides. 65 In the case of InO x /Al 2 O 3 , the fresh material after calcination appears to have a greater portion of active metal oxides, in clusters of NPs of In 2 O 3 , segregated from the parent alumina support, which we could quantify (SEM on the SI) as roughly 50 wt % external In 2 O 3 NPs (Figures 8A and 38S−39S). However, this morphology changes when exposed to different reaction gases.…”

Section: Top)mentioning

confidence: 91%

Reshaping the Role of CO₂ in Propane Dehydrogenation: From Waste Gas to Platform Chemical

et al. 2022

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The valorization of CO 2 appeals to the chemical industry due to the reduction in greenhouse gas emissions and the ability to offer more renewable products. Propylene production is the second largest process in the chemical industry, and it strongly depends on fossil fuel feedstocks. Coupling CO 2 reduction with propane dehydrogenation boosts conversion and produces CO, a valuable platform chemical currently synthesized by fossil-methane reforming. In this work, (i) we demonstrate the environmental benefits of coupling CO 2 with a life-cycle assessment under industrial conditions, potentially reducing emissions by 3 t CO2-eq per ton of propylene produced. (ii) We screen supported catalytic materials�both known and novel�with a focus on propane and CO 2 reaction mechanisms under industrial reaction conditions of 400−700 °C and pressures of 1−6 barg (redox: V,

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Coke evolution study in a liquid atomization into gas-solid fluidized bed to convert fructose to value-added chemicals

Khani,

Porte,

Brinkerhoff

et al. 2025

Catalysis Today

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Pt-WO3 oxydehydrates fructose to furans in the gas phase

Cited by 3 publications

References 62 publications

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H⁺ Exchange Heterogeneous Catalysis

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H⁺ Exchange Heterogeneous Catalysis

Reshaping the Role of CO₂ in Propane Dehydrogenation: From Waste Gas to Platform Chemical

Coke evolution study in a liquid atomization into gas-solid fluidized bed to convert fructose to value-added chemicals

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Pt-WO3 oxydehydrates fructose to furans in the gas phase

Cited by 3 publications

References 62 publications

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H+ Exchange Heterogeneous Catalysis

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H+ Exchange Heterogeneous Catalysis

Reshaping the Role of CO2 in Propane Dehydrogenation: From Waste Gas to Platform Chemical

Coke evolution study in a liquid atomization into gas-solid fluidized bed to convert fructose to value-added chemicals

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Product

Resources

About

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H⁺ Exchange Heterogeneous Catalysis

Sustainable One-Pot Synthesis of 5-(Hydroxymethyl)furfural from C6-Sugars by Enhanced H⁺ Exchange Heterogeneous Catalysis

Reshaping the Role of CO₂ in Propane Dehydrogenation: From Waste Gas to Platform Chemical