高校化学工程学报2016，Vol.30Issue(5)：1082-1087,6.DOI:10.3969/j.issn.1003-9015.2016.05.014
双金属催化剂Bi-Mo/TiO2气相催化氧化2-甲基吡啶合成2-吡啶甲醛
Gas-Phase Oxidation of 2-Picoline to Synthesize 2-Pyridylaldehyde Using Bi-Mo/TiO2 Dual-Metal Catalysts
张玲玲 1俞杰 2王晓钟 1张世界 1戴立言3
作者信息
- 1. 浙江大学 化学工程与生物工程学院，浙江 杭州 310027
- 2. 浙江新三和医药化工股份有限公司，浙江 上虞 312369
- 3. 浙江新三和医药化工股份有限公司，浙江 上虞 312369
- 折叠
摘要
Abstract
Dual-metal catalysts Bi-Mo/TiO2 were prepared for gas-phase oxidation of 2-picoline to synthesize 2-pyridylaldehyde, which was characterized by XRD, H2-TPR, SEM and XPS. The effects of experimental parameters, such as catalyst composition, reaction temperature and material flow rate were investigated in detail. The results show that the high catalytic activity of Bi-Mo/TiO2 is based on the cooperative catalysis of Bi2Mo3O12 and MoO3. The optimized Bi2Mo3O12/MoO3 molar ratio and loading amount of the catalyst are 1:1 and 15%(wt) respectively. Meanwhile, low reaction temperature and high material flow rate can remarkably increase the selectivity. Under the optimal conditions (reaction temperature 290℃, flow rate 0.5 mL . min-1 of 10%(wt) 2-picoline solution, oxygen flow rate 0.1 L.min-1, space velocity 12600 h-1), 2-picoline conversion of 70.9% can be achieved with high 2-pyridylaldehyde selectivity of 83.1% using the prepared Bi-Mo/TiO2 catalyst.关键词
双金属催化剂/2-甲基吡啶/2-吡啶甲醛/选择性/协同催化Key words
dual-metal catalyst/2-picoline/2-pyridylaldehyde/selectivity/cooperative catalysis分类
化学化工引用本文复制引用
张玲玲,俞杰,王晓钟,张世界,戴立言..双金属催化剂Bi-Mo/TiO2气相催化氧化2-甲基吡啶合成2-吡啶甲醛[J].高校化学工程学报,2016,30(5):1082-1087,6.
