俞杰,戴立言,王晓钟,陈英奇,张玲玲

• 1:浙江大学化学工程与生物工程学系
• 2:浙江新三和医药化工股份有限公司

摘要(Abstract)：

以XRD、H2-TPR等方法表征Mo掺杂V/TiO2新型催化剂,并详细考察了催化剂组成、反应温度、空速等对Mo掺杂V/TiO2催化2-甲基吡啶氧化合成2-吡啶甲醛的影响。实验研究结果表明,Mo的掺杂提高了催化剂的还原能力和催化活性。低反应温度和高空速可以提高对2-吡啶甲醛的选择性。钒和钼的最佳比率为2.9:1,催化剂的最佳负载量为7%。最佳反应条件下(催化剂焙烧温度600℃,反应温度290℃,10%2-甲基吡啶水溶液的流速为0.2 mL·min-1,氧气的流速为0.1 L·min-1,空速为3083 h-1),2-甲基吡啶的转化率为70.2%,2-吡啶甲醛的选择性为88.3%,与文献报道的未使用Mo掺杂的催化剂所得的结果 (转化率14%,选择性93%)相比,在选择性相差不大的情况下,转化率大幅度提高。

关键词(KeyWords)： 气相氧化;2-甲基吡啶;2-吡啶甲醛;转化率;选择性

Abstract:

Keywords:

基金项目(Foundation): 浙江省重点科技创新团队项目(2010R50043)

作者(Author): 俞杰,戴立言,王晓钟,陈英奇,张玲玲

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