Highly Active Ni/SiO2 Catalyst Prepared Through Citric Acid-Assisted Impregnation for the Hydrogenation of Acetoin to 2,3-Butanediol

The vapor-phase hydrogenation of acetoin (AC) to 2,3-butanediol (2,3-BDO) was investigated over SiO2-supported Ni (Ni/SiO2) catalysts prepared by impregnation assisted with organic additives. Among 14 catalysts with different organic additives, the Ni/SiO2 prepared with citric acid (CA) was found to...

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Bibliographic Details
Published in:Bulletin of the Chemical Society of Japan 2022-03, Vol.95 (3), p.443-450
Main Authors: Nakazono, Kazuki, Hosaka, Shuya, Yamada, Yasuhiro, Sato, Satoshi
Format: Article
Language:English
Subjects:
Additives
Butanediol
Catalysts
Citric acid
Dehydrogenation
Hydrogenation
Impregnation
Low temperature
Noble metals
Selectivity
Silicon dioxide
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Summary:The vapor-phase hydrogenation of acetoin (AC) to 2,3-butanediol (2,3-BDO) was investigated over SiO2-supported Ni (Ni/SiO2) catalysts prepared by impregnation assisted with organic additives. Among 14 catalysts with different organic additives, the Ni/SiO2 prepared with citric acid (CA) was found to show the highest activity. The Ni/SiO2 catalyst prepared with CA has a much higher hydrogenation ability for AC and a higher selectivity to 2,3-BDO than typical noble metal catalysts. In addition, it was preferable that the hydrogenation of AC was conducted at a low temperature in the hydrogenation-dehydrogenation equilibrium between AC and 2,3-BDO to provide 2,3-BDO selectively.
ISSN:0009-2673
1348-0634
DOI:10.1246/bcsj.20210447