Vapor-phase catalytic dehydration of 2,3-butanediol to 3-buten-2-ol over ZrO₂ modified with alkaline earth metal oxides

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• 作者：Hailing Duan^a ; Yasuhiro Yamada^a ; Shingo Kubo^b ; Satoshi Sato^a ; ^{satoshi@faculty.chiba-u.jp}
• 关键词：2 ; 3-Butanediol ; 3-Buten-2-ol ; Dehydration ; Alkaline earth metal oxides ; Monoclinic ZrO2 ; Ca-O-Zr hetero-linkage
• 刊名：Applied Catalysis A: General
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：530
• 期：Complete
• 页码：66-74
• 全文大小：2671 K
• 卷排序：530

文摘

Vapor-phase dehydration of 2,3-butanediol was studied over modified monoclinic ZrO2. 3-Buten-2-ol was preferentially formed over BaO/ZrO2 and SrO/ZrO2 as well as CaO/ZrO2. The highest conversion of 72.4% was attained with the selectivity of 74.4% over BaO/ZrO2. XPS study reveals the structure of active sites, M-O-Zr (M = Ca, Sr, and Ba) hetero-linkages. The formation of 3-buten-2-ol proceeds via base-acid concerted mechanism.