Journal
CHEMICAL ENGINEERING JOURNAL
Volume 323, Issue -, Pages 278-286Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.04.114
Keywords
Xylose; Furfural; Aluminium chloride; Formic acid; Platform chemicals
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Funding
- Science without Borders
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Furfural is a potential platform chemical derived from biomass, which has gained increased attention as a potential substitute for the displacement of petrochemicals and the production of biofuels. The catalytic effect of different metal tri-chlorides (FeCl3, AlCl3 and CrCl3) with formic acid (FA) was investigated for the selective conversion of D-xylose to furfural in aqueous solutions. Reactions were carried out at various temperatures (100-170 degrees C), FA concentrations (0-65 wt%), and metal chloride concentrations (0.2-0.8 M). Lyxose was identified as primary intermediate of the conversion of xylose at low temperatures and FA concentrations. A mixture containing 0.4 M AlCl3 and 55 wt% FA was the most selective and active system for the production of furfural at low temperatures (130 degrees C, selectivity approximate to 70-90%). A simplified kinetic model was developed to describe the overall xylose conversion and furfural formation under the selected conditions, offering a valuable tool for process optimisation and design. (C) 2017 Elsevier B.V. All rights reserved.
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