期刊
CARBOHYDRATE RESEARCH
卷 343, 期 5, 页码 848-854出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2008.02.005
关键词
high-temperature steam; anhydroglucose; levoglucosan; glucose; dehydration; 1,6-anhydro-beta-d-glucopyranose
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 0.2-0.4 s under the present temperature conditions. (C) 2008 Elsevier Ltd. All rights reserved.
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