Direct Conversion of Glucose in Ethanol and Ethanol/Water Mixed Medium

Abstract:

Eethyl levulinate (EL) can be produced by direct conversion of glucose in ethanol medium. Both sulfuric acid and solid acid catalyst (USY) can be used as effective acid catalyst. The maximum EL yields were almost same. However, the usage of USY is helpful to limit the diethyl ether (DEE) production efficiently for recycling of ethanol. In ethanol/water mixed medium, water addition has significant effect on the products distribution. EL yield decreased obviously in water-rich medium. Meanwhile, the amount of DEE decreased with the increase of water addition. However, water addition has the opposite effect on the humic solid formation, and more humic solid can be formed in water-rich medium.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 312-315
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.312
• Online since: February 2013
• Authors: Chun Chang, Bo Li, Gui Zhuan Xu, Pei Qin Sun
• Keywords: Ethanol, Ethyl Levulinate, Glucose, Hydrolysis

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