Abstract: The catalyst performance for the partial oxidation of tert-butanol to methacrolein was systematically investigated in a fix-bed reactor. The results indicated that the reaction conditions, such as reaction temperature, reactant ratio and space velocity, affected the performance of the catalyst obviously. The most appropriate reaction conditions are temperature 380℃, O2:IB=3 (molar ratio) and space velocity 1800 h-1. During 1500 h continuous operation test the catalyst showed good stability under the above conditions, the conversion rate of tert-butanol maintained in 83%~87% and the selectivity of methacrolein was about 73%.

Key words: tert-butanol, isobutylene, methacrolein, catalyst, reaction performance

摘要： 在固定床反应器中系统地考察了叔丁醇部分氧化制甲基丙烯醛催化剂的反应性能. 研究表明，反应温度、原料配比、空速等对催化剂反应性能有显著影响，最佳反应条件为反应温度380℃, O2:IB=3和空速1800 h-1. 在最佳反应条件下进行了1500 h连续实验，叔丁醇转化率保持在83%~87%之间，甲基丙烯醛的选择性保持在73%左右，表明该催化剂具有良好的稳定性.

关键词: 叔丁醇, 异丁烯, 甲基丙烯醛, 催化剂, 反应性能