| 甲醇燃料车尾气净化催化剂的研究(Ⅰ)──单组分催化剂对甲醇的深度氧化 |
| 摘要点击 1880 全文点击 1013 修订日期：1993-06-22 |
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| 中文关键词 催化剂 甲醇 甲醛 深度氧化 甲醇燃料 |
| 英文关键词 methanol formaldehyde deepoxidation catalyst |
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| 中文摘要 |
| 利用色谱-微反联用技术对甲醇深度氧化进行了研究。结果表明:甲醇在所有催化剂上氧化时均产生副产物甲醛及甲酸甲酯;非贵金属氧化物催化剂以Cu-O/r-Al2O3的活性最优,其最佳负载量为10%-20%,不同的制备方法中以均匀沉淀法制备的催化剂最好;贵金属催化剂中Ag/r-Al2O3的活性较好,其甲醇氧化的T50,T95分别只有135℃和190℃,而且伴生的甲醛及甲酸甲酯浓度也较低。不同催化剂的活性与其氧化物的生成焓之间存在"火山"型曲线关系。 |
| 英文摘要 |
| It was found that the deep oxidation of CH3OH over all the different catalysts studied produced both HCHO and HCOOCH3.Among the basic medal oxide catalysts,CuO/r-Al2O3 exhibited the best activity with an optimum loading of about 10%-20%. The catalyst CuO/r-Al2O3 prepared with the method of homogeneous coprecipitution had a better activity than others. Among the precious metal catalysts studied,Ag/r-Al2O3 was the best one and had T50=135℃ and T95=190℃ for the oxidation of CH3OH. The different catalysts bed a "volcano"type of curve relationship between their activities and △Hf0. |
