| Ru/Mn-Ce/TiO2及Ru/TiO2催化剂对丁二酸的催化湿式氧化研究 |
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| 引用本文： | 张世鸿,涂学炎,尹海川,高诚伟,王伟,王颖臻.Ru/Mn-Ce/TiO2及Ru/TiO2催化剂对丁二酸的催化湿式氧化研究[J].贵金属,2005,26(1):6-11,25. |
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| 作者姓名： | 张世鸿 涂学炎 尹海川 高诚伟 王伟 王颖臻 |
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| 作者单位： | 云南大学化学与材料工程学院,云南,昆明,650091 |
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| 摘 要： | 采用浸渍法制备了2个系列的Ru／Mn-Ce/TiO2及Ru/TiO2催化剂，并用XRD、TEM、BET等方法对催化剂进行表征。在T=270℃和Po2=1．5MPa条件下，在间歇式反应釜中对丁二酸进行降解实验。结果表明60min内丁二酸降解的总有机碳(TOC)去除率为80％～99．8％；在钌含量相同的情况下，Ru／Mn-Ce／TiO2催化剂的催化活性高于Ru/TiO2催化剂；Ru含量较低的情况下，Mn、Ce对提高催化活性有很大作用，但Ru含量增加时Mn、Ce的作用减弱；氢还原的温度对Ru/TiO2系列催化剂的催化氧化活性有明显影响，500℃还原钌所得催化剂对丁二酸的催化氧化活性优于350℃。
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| 关 键 词： | 丁二酸 TiO2催化剂 并用 反应釜 催化活性 催化氧化 间歇式 催化湿式氧化 去除率 总有机碳 |
Study on Catalytic Wet Oxidation of Succinic Acid by Ru/Mn-Ce/TiO2 and Ru/TiO2 Catalysts |
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| Abstract.Study on Catalytic Wet Oxidation of Succinic Acid by Ru/Mn-Ce/TiO2 and Ru/TiO2 Catalysts[J].Precious Metals,2005,26(1):6-11,25. |
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| Authors: | Abstract |
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| Abstract: | Two series of catalysts composed of Ru/Mn-Ce/TiO2 and Ru/TiO2 were prepared by impregnating method and characterized with XRD, TEM and BET. Degradation of succinic acid in aqueous solution was carried out using a slurry autoclave at T=270℃ and Po2=1.5MPa. The results showed that TOC abatements for succinic acid were at the range of 80.0%～99.8% within 60 min. Ru/Mn-Ce/TiO2 catalysts exhibited higher catalytic activity than that of Ru/TiO2 catalysts when loading the same content of Ru, Mn and Ce played a very important role for increasing catalytic activity for lower Ru loading catalysts, however the effectiveness of Mn and Ce became weak when a higher content of Ru was loaded. The catalytic activity of series Ru/TiO2 catalysts was obviously influenced by hydrogen reduction temperature. Catalysts obtained by reduction of Ru at 500℃ were superior to that at 350℃ in succinic acid catalytic oxidation. |
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| Keywords: | Catalysis chemistry Ruthenium Catalytic wet oxidation(CWO) Succinic acid Manganese oxide Cerium oxide Titanium oxide |
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