Selective preparation of furfural from xylose over microporous solid acid catalysts

Moreau, Claude; Durand, Robert; Peyron, Delphine; Duhamet, Jean; Rivalier, Patrick

doi:10.1016/s0926-6690(97)00037-x

Cited by 209 publications

(122 citation statements)

References 5 publications

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“…[8][9][10][11]13,14,16,17,19,47,48 The TiO 2 /CB catalyst allows reaching relatively high Fur yields in short reaction times (e.g. in comparison to H 2 Ti 3 O 7 nanosheets).…”

Section: Xylose Dehydration To Furfuralmentioning

confidence: 99%

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

et al. 2013

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a Titanium dioxide was selectively grown on reduced graphene oxide (TiO 2 /RGO) and carbon black (TiO 2 / CB) by a microwave assisted synthesis in benzyl alcohol to produce nanocomposite catalysts (consisting of 8 9 nm anatase nanoparticles dispersed on the carbon surface) with interesting properties for the production of furfural from renewable carbohydrate biomass. The materials efficiently catalyze the aqueous phase dehydration of xylose into furfural at 170 uC with high furfural yields (67 69%) at high conversions (95 97%). The catalytic performance was not significantly affected by the type of carbon support, suggesting that cheap amorphous carbons can be used to support the titania nanoparticles.Additionally, the catalysts were found to be stable under hydrothermal conditions and outstandingly stable towards coke formation in comparison to other solid acid catalysts reported in the literature. Both composites were reused after a simple wash and drying procedure without any detectable loss of catalytic activity in consecutive batch runs.

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“…[8][9][10][11]13,14,16,17,19,47,48 The TiO 2 /CB catalyst allows reaching relatively high Fur yields in short reaction times (e.g. in comparison to H 2 Ti 3 O 7 nanosheets).…”

Section: Xylose Dehydration To Furfuralmentioning

confidence: 99%

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

et al. 2013

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“…[19] As such, mordenites with 0.7 nm pore size tend to exhibit higher selectivity than faujasites with 1.3 nm pore sizes. [4] For heterogeneous zeolite ZSM-5 (1.2 nm pore size) [6] and faujasites, the deposition of furfural oligomers inside catalyst pores is the primary source of catalyst deactivation. However, even with the deposition of carbonaceous materials on the surface of the Nafion, the reactivity and reusability of the catalyst remained high after repeated runs (vide infra).…”

Section: Reactivity Of the Nafion 117 Catalystmentioning

confidence: 99%

“…However, the ability of solid acids to interact with slurries of biomass material to produce furfural is currently unknown. [a] Reference [4].…”

Section: Reactivity Of the Nafion 117 Catalystmentioning

confidence: 99%

“…At 170-185 8C, the reaction is complete within 3 h, yielding 40-50 % furfural. [2] Current commercial processes use concentrated inorganic acids (H 2 SO 4 and HCl) that are highly toxic, corrosive, and difficult to handle. Other major drawbacks to mineral acids include: the occurrence of extensive side reactions from long reaction times that reduce furfural yield; neutralization of the spent acid; and technological challenges in the development, use, and maintenance of equipment exposed to the corrosive liquids.…”

Section: Introductionmentioning

confidence: 99%

“…These heterogeneous catalysts are often solid acids characterized by strong Brønsted acidity, high surface area, and are thermally stable at the high temperatures required for rapid xylose dehydration to furfural. Zeolites generally produce lower reaction yields [4][5][6] whereas heteropolyacids require lower substrate-to-catalyst loading to obtain moderate yields (63 %). [7] Sulfonic-acid-functionalized MCMs (Mobil catalytic materials) have 91 % xylose conversion and 82 % furfural selectivity, but require 24 h of reaction with diminishing catalyst activity for consecutive runs.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Furfural from Xylose by Heterogeneous and Reusable Nafion Catalysts

et al. 2011

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Nafion 117 has been proven as a robust and reusable heterogeneous catalyst for the dehydration of 9.1 % (w/w) xylose in dimethyl sulfoxide (DMSO) to yield 60 % furfural in 2 h at 150 °C. The catalytic high activity promoted shorter reaction times to limit the formation of side‐products which otherwise would lead to decreased yields. Within the allowable operating temperature range of Nafion (125 to 175 °C), the reaction was kinetically controlled. In corroboration with AFM and SEM imaging, ATR–FTIR confirmed that the Nafion catalytic activity remained unchanged after 15 repeated uses. With excellent chemical and thermal stability under the conditions for xylose dehydration compared to existing solid acid catalysts, this reusable Nafion system could be a step towards the more economical production of furfural from renewable biomass, an intermediate chemical for the preparation of value‐added chemicals.

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Microporous and Mesoporous Catalysts for the Transformation of Carbohydrates

Moreau

2006

Catalysts for Fine Chemical Synthesis

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Selective preparation of furfural from xylose over microporous solid acid catalysts

Cited by 209 publications

References 5 publications

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

Synthesis of Furfural from Xylose by Heterogeneous and Reusable Nafion Catalysts

Microporous and Mesoporous Catalysts for the Transformation of Carbohydrates

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