Journal
KOBUNSHI RONBUNSHU
Volume 58, Issue 12, Pages 685-691Publisher
SOC POLYMER SCIENCE JAPAN
DOI: 10.1295/koron.58.685
Keywords
supercritical water; subcritical water; D-glucose; D-fructose; retro-aldol condensation; dehydration reaction
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For development of a process of recovering chemicals from biomass by using supercritical water as a reactor solvent, a mechanistic study has been conducted for the reaction of D-glucose and D-fructose in sub- and supercritical water. A series of experiments was conducted over wide ranges of reaction temperature (350 similar to 450 degreesC), pressure (25 similar to 40 MPa), and reaction times (0.02 similar to1.02 s) with a flow type rector. As a result, we found that the contribution of retro-aldol condensation became predminonant at higher temperatures, while that of dehydration reaction formation of furan derivatives) became significant at lower temperatures. In supercritical condition, retro-aldol condensation became essential for reducing reaction pressure, against the dehydration reaction.
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