One-step semi-continuous cyclohexanone production via hydrogenation of phenol in a submerged ceramic membrane reactor
One-step semi-continuous cyclohexanone production via hydrogenation of phenol in a submerged ceramic membrane reactor
复制标题
浸没式陶瓷膜反应器中苯酚加氢一步法半连续生产环己酮
DOI：
10.1016/j.cej.2015.09.037
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发表时间：
2016-01
影响因子：
15.1
通讯作者：
Weihong Xing
中科院分区：
文献类型：
--
作者：
Ying Li;Jun Huang;Rizhi Chen;Weihong Xing
环己酮是重要的化工原料，发展绿色生产技术刻不容缓。在浸没式陶瓷膜反应器中，利用Pd@CN催化剂开发了一种清洁高效的苯酚加氢制环己酮工艺，实现了催化剂的原位分离和重复利用。详细考察了操作条件对反应和过滤过程的影响。结果表明，膜的引入对苯酚转化率和环己酮选择性几乎没有影响，但操作条件对反应性能和过滤性能影响较大。半连续苯酚加氢制环己酮实验表明，Pd@CN催化剂能保持苯酚转化率高达94.6%，环己酮选择性高于86.5%，陶瓷膜在整个加氢过程中表现出较好的过滤性能和优异的稳定性。本研究可为环己酮的绿色生产提供参考。
Cyclohexanone is an important chemical raw material, and the development of green production technologies is urgently desirable. In this article, a clean and efficient process of phenol hydrogenation to cyclohexanone was developed over a Pd@CN catalyst in a submerged ceramic membrane reactor, which realized the in-situ separation and reuse of catalyst. The effects of operation conditions on the reaction and filtration processes were investigated in detail. Results showed that the introduction of membrane had almost no influence on the phenol conversion and cyclohexanone selectivity, but the operation conditions greatly affected the performance of reaction and filtration. Semi-continuous phenol hydrogenation to cyclohexanone showed that the Pd@CN catalyst could maintain a high phenol conversion at ∼94.6% and a cyclohexanone selectivity above 86.5%, and the ceramic membrane exhibited better filtration performance and excellent stability during the entire hydrogenation process. This work would provide some references for green production of cyclohexanone.
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