Glucose Dehydration for Biofuels

  • Author: ChemViews
  • Published Date: 13 April 2011
  • Source / Publisher: Chemistry - A European Journal/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Glucose Dehydration for Biofuels

Related Societies

Glucose is the most abundant carbohydrate in biomass and its dehydration to the platform chemical 5-hydroxymethylfurfural (HMF) has been reported in ionic liquids (ILs) with both chromium(II) and chromium(III) catalysts.

Emiel Hensen and co-workers, Eindhoven University of Technology, The Netherlands, have studied whether Cr(II) or Cr(III) salts are better catalysts for HMF production. They show that anhydrous CrCl2 and CrCl3•6H2O have similar activity (60 % and 72 % yields, respectively), while anhydrous CrCl3 is less active due to lower solubility in the IL.

Fructose is produced as an intermediate in the conversion. Cr(III) is more active than Cr(II) in the isomerization of glucose to fructose as well as in the subsequent fructose dehydration. These results show that while glucose transformations do not depend on the oxidation state of Cr, improvements can be made by improving the solubility of Cr(III) salts.

Article Views: 3233

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH