Continuous Acetone Ammoximation over TS-1 in a Tubular Membrane Reactor
Continuous Acetone Ammoximation over TS-1 in a Tubular Membrane Reactor
复制标题
管式膜反应器中 TS-1 的连续丙酮氨肟化
DOI：
10.1021/ie901912e
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发表时间：
2010-06
影响因子：
4.2
通讯作者：
Chen Rizhi
中科院分区：
文献类型：
--
作者：
Jin Wanqin;Xing Weihong;Xu Nanping;Li Zhaohui;Chen Rizhi
以管式金属膜为基础，开发了一种新型管式膜反应器，解决了催化剂从反应混合物中的原位分离问题，实现了生产过程的连续化。本文研究了钛硅分子筛TS-1在管式膜反应器中连续氨肟化丙酮制备丙酮肟的可行性。结果表明，管式膜反应器系统比侧流式陶瓷膜反应器系统能更长时间稳定生产丙酮肟，且生产效率高于间歇式反应器。通过单因素实验考察了搅拌速率、停留时间、反应温度、催化剂浓度、NH3/丙酮摩尔比、H2 O2/丙酮摩尔比、叔丁醇/丙酮摩尔比等操作条件对反应性能的影响。结果表明，操作条件对丙酮氨肟化反应的转化率、选择性和过滤阻力有较大影响。
A new tubular membrane reactor based on tubular metallic membrane is developed, which can solve the problem concerning in situ separation of catalyst from the reaction mixture and make the production process continuous. In this article, the feasibility of continuous ammoximation of acetone to acetone oxime over titanium silicalites-1 (TS-1) in the tubular membrane reactor was investigated. It has demonstrated that the tubular membrane reactor system can maintain a more long-term steady production of acetone oxime than that of a side-stream ceramic membrane reactor and has a higher productivity than the batch reactor. The effects of operation conditions (stirring rate, residence time, temperature, catalyst concentration, molar ratio of NH3/acetone, H2O2/acetone, and t-butanol/acetone) on the performances of the reaction system were examined via single factor experiments. Results show that the operation conditions greatly affect the conversion, selectivity of acetone ammoximation, and the filtration resista...