Hexafluoroisopropanol as a Low‐Boiling Extraction Solvent for 5‐Hydroxymethylfurfural Production

Weingart, Eric; Teevs, Linda; Krieg, Ramona; Prüße, Ulf

doi:10.1002/ente.201700569

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…[229] In 20 min residence time, a full fructose conversion with 76 % HMF yield was obtained at 100°C and 20 bar. [234] The synthesis of furfural from xylose has been performed in a biphasic water-butanol packed bed milli-reactor made of zirconium (d C = 8 mm) ( Table 4, entry 15). [234] The synthesis of furfural from xylose has been performed in a biphasic water-butanol packed bed milli-reactor made of zirconium (d C = 8 mm) ( Table 4, entry 15).…”

Section: Heterogeneously Catalyzed Furan Synthesismentioning

confidence: 99%

“…HFIP is a low boiling point solvent and hence facilitates the distillative retrieval of HMF after its production. [234] The synthesis of furfural from xylose has been performed in a biphasic water-butanol packed bed milli-reactor made of zirconium (d C = 8 mm) ( Table 4, entry 15). [230] The reaction was catalyzed over watertolerant H 3 PO 4 modified hydrated tantalum oxide catalysts.…”

Section: Heterogeneously Catalyzed Furan Synthesismentioning

confidence: 99%

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Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

2019

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Biomass as a renewable and abundantly available carbon source is a promising alternative to fossil resources for the production of chemicals and fuels. The development of biobased chemistry, along with catalyst design, has received much research attention over recent years. However, dedicated reactor concepts for the conversion of biomass and its derivatives are a relatively new research field. Continuous flow microreactors are a promising tool for process intensification, especially for reactions in multiphase systems. In this work, the potential of microreactors for the catalytic conversion of biomass derivatives to value-added chemicals and fuels is critically reviewed. Emphases are laid on the biphasic synthesis of furans from sugars, oxidation and hydrogenation of biomass derivatives. Microreactor processing has been shown capable of improving the efficiency of many biobased reactions, due to the transport intensification and a fine control over the process. Microreactors are expected to contribute in accelerating the technological development of biomass conversion and have a promising potential for industrial application in this area.

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Section: Heterogeneously Catalyzed Furan Synthesismentioning

confidence: 99%

Section: Heterogeneously Catalyzed Furan Synthesismentioning

confidence: 99%

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

2019

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“…In a recent publication, [52] it has been shown that hexafluoroisopropanol, a low‐boiling extraction solvent, has a partition coefficient superior to solvents such as MIBK or n ‐butanol. The easy isolation of HMF, the good selectivity, and easy recyclability are clear advantages of this solvent.…”

Section: More Recent Process Development For Hmf Production (2006 To ...mentioning

confidence: 99%

Current Situation of the Challenging Scale‐Up Development of Hydroxymethylfurfural Production

et al. 2020

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Hydroxymethylfurfural (HMF) is a high‐value platform chemical derived from renewable resources. In recent years, considerable efforts have been made to produce HMF also at industrial scale, which still faces some challenges regarding yield as well as sustainable and economic process designs. This critical Review evaluates the industrial process development of sustainable biomass conversion to HMF. Qualitative and quantitative guidelines are defined for the technological assessment of the processes described in patent literature. The formation of side products, difficulties in the separation and purification of HMF as well as catalyst regeneration were identified as major challenges in the HMF production. A first small‐scale, commercial HMF production plant with a capacity of 300 t HMF per year has been operating in Switzerland since 2014.

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“…(2-butanol) = 100 °C) lead to difficulties in HMF production and isolation. In previous investigations we showed that hexafluoroisopropanol (HFIP, Scheme 2 ) solves these problems in an excellent way [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Dehydration of Fructose to 5-Hydroxymethylfurfural (HMF) in Low-Boiling Solvent Hexafluoroisopropanol (HFIP)

et al. 2018

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A mixture of hexafluoroisopropanol (HFIP) and water was used as a new and unknown monophasic reaction solvent for fructose dehydration in order to produce HMF. HFIP is a low-boiling fluorous alcohol (b.p. 58 °C). Hence, HFIP can be recovered cost efficiently by distillation. Different ion-exchange resins were screened for the HFIP/water system in batch experiments. The best results were obtained for acidic macroporous ion-exchange resins, and high HMF yields up to 70% were achieved. The effects of various reaction conditions like initial fructose concentration, catalyst concentration, water content in HFIP, temperature and influence of the catalyst particle size were evaluated. Up to 76% HMF yield was attained at optimized reaction conditions for high initial fructose concentration of 0.5 M (90 g/L). The ion-exchange resin can simply be recovered by filtration and reused several times. This reaction system with HFIP/water as solvent and the ion-exchange resin Lewatit K2420 as catalyst shows excellent performance for HMF synthesis.

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Hexafluoroisopropanol as a Low‐Boiling Extraction Solvent for 5‐Hydroxymethylfurfural Production

Cited by 11 publications

References 33 publications

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

Current Situation of the Challenging Scale‐Up Development of Hydroxymethylfurfural Production

Catalytic Dehydration of Fructose to 5-Hydroxymethylfurfural (HMF) in Low-Boiling Solvent Hexafluoroisopropanol (HFIP)

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