Thermochemical transformation of glucose to 1,6-anhydroglucose in high-temperature steam |
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Authors: | Sasaki Masahide Takahashi Kenji Haneda Yui Satoh Hiroe Sasaki Akiyoshi Narumi Atsushi Satoh Toshifumi Kakuchi Toyoji Kaga Harumi |
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Affiliation: | National Institute of Advanced Industrial Science and Technology, Sapporo, Japan. |
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Abstract: | An aqueous solution of glucose was reacted at temperatures from 200 to 400 degrees C under atmospheric pressure using a continuous flow reactor. For reaction temperatures above 300 degrees C, the liquid product yield was not sensitive to the temperature change; on the other hand, below 300 degrees C, it decreased rapidly with decreasing temperature. 1,6-Anhydro-beta-D-glucopyranose (AGP) and 1,6-anhydro-beta-D-glucofuranose (AGF) were the major components in the liquid product. The yields of AGP and AGF were 40% and 19%, respectively, at 360 degrees C and a feed rate of 0.5 mL/min. The optimum space time to produce AGP and AGF was about 0.2-0.4s under the present temperature conditions. |
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Keywords: | High-temperature steam Anhydroglucose Levoglucosan Glucose Dehydration 1,6-Anhydro-β- smallcaps" >d-glucopyranose |
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