Journal
CHEMICAL ENGINEERING JOURNAL
Volume 284, Issue -, Pages 724-732Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.09.037
Keywords
Phenol; Cyclohexanone; Hydrogenation; Membrane reactor; Green production
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Funding
- Jiangsu Natural Science Foundation for Distinguished Young Scholars [BK20150044]
- National High Technology Research and Development Program [2012AA03A606]
- National Natural Science Foundation [21306081, 21125629]
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [14KJB530004]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) of China
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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 similar to 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. (C) 2015 Elsevier B.V. All rights reserved.
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