| Catalytic liquid-phase oxidation of acetaldehyde to acetic acid over a Pt/CeO2–ZrO2–SnO2/γ-alumina catalyst |
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| 作者姓名： | Pil-Gyu Choi Takanobu Ohno Toshiyuki Masui Nobuhito Imanaka |
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| 摘 要： | Pt/CeO2–ZrO2–SnO2/γ-Al2O3 catalysts were prepared by co-precipitation and wet impregnation methods for catalytic oxidation of acetaldehyde to acetic acid in water. In the present catalysts, Pt and CeO2–ZrO2–SnO2 were successfully dispersed on the γ-Al2O3 support. Dependences of platinum content and reaction time on the selective oxidation of acetaldehyde to acetic acid were investigated to optimize the reaction conditions for obtaining both high acetaldehyde conversion and highest selectivity to acetic acid. Among the catalysts, a Pt(6.4 wt.%)/Ce0.68Zr0.17Sn0.15O2.0(16 wt.%)/γ-Al2O3 catalyst showed the highest acetaldehyde oxidation activity. On this catalyst, acetaldehyde was completely oxidized after the reaction at 0°C for 8 hr, and the selectivity to acetic acid reached to 95% and higher after the reaction for 4 hr and longer.
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| 收稿时间： | 2014/12/20 0:00:00 |
| 修稿时间： | 2015/3/12 0:00:00 |
Catalytic liquid-phase oxidation of acetaldehyde to acetic acid over a Pt/CeO2-ZrO2-SnO2/γ-alumina catalyst |
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| Pil-Gyu Choi,Takanobu Ohno,Toshiyuki Masui,Nobuhito Imanaka.Catalytic liquid-phase oxidation of acetaldehyde to acetic acid over a Pt/CeO2-ZrO2-SnO2/γ-alumina catalyst[J].Journal of Environmental Sciences,2015,36(10):63-66. |
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| Authors: | Pil-Gyu Choi Takanobu Ohno Toshiyuki MasuiNobuhito Imanaka |
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| Institution: | Department of Applied Chemistry, Faculty of Engineering, Osaka University, Osaka 565-0871, Japan |
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| Abstract: | |
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| Keywords: | Liquid-phase oxidation Acetaldehyde Rare earths Catalyst |
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