Catalytic conversion of ethyl lactate to 1,2-propanediol over CuO

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• 作者：Song Zhang ; Zhibao Huo ; ^{hzb410@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Dezhang Ren ; Jiang Luo ; Jun Fu ; Lu Li ; Fangming Jin ; ^{fmjin@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Biomass ; 1 ; 2-propanediol ; Ethyl lactate ; CuO ; Hydrothermal reactions
• 刊名：Chinese Journal of Chemical Engineering
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：24
• 期：1
• 页码：126-131
• 全文大小：1033 K

文摘

An efficient conversion of biomass-derived ethyl lactate to 1,2-propanediol (1,2-PDO) over CuO was investigated. Among the catalysts we tested, CuO, Cu₂O and Co showed excellent catalytic activity for the conversion of ethyl lactate to 1,2-PDO in water, and CuO was more active and gave the best result. The 1,2-PDO yield of 93.6% was achieved when Zn acted as a reductant. The results indicated that in situ formed hydrogen by the oxidation of Zn in water is more effective than gaseous hydrogen, which failed to produce the 1,2-PDO from ethyl lactate. From a practical point of view, the present method may provide a useful route for the production of 1,2-PDO from ethyl lactate.