Journal
MOLECULAR CATALYSIS
Volume 506, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mcat.2021.111534
Keywords
Cyclohexanone; Non-oxidative dehydrogenation; Copper catalyst; Fixed bed reactor; Cyclohexanol
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Funding
- Science and Engineering Research Board (SERB) (Department of Science and Technology (DST))
- Asian Paints Private Limited through Confederation of Indian Industry (CII)
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In this study, the non-oxidative vapor phase dehydrogenation of cyclohexanol to cyclohexanone was successfully achieved using CuZnMg catalyst. The catalyst, prepared by co-precipitation method, exhibited high stability and reusability. Various characterization techniques were used to analyze the catalyst's performance.
Cyclohexanone is the key ingredient for the manufacture of ?-caprolactam which is used for making Nylon 6. In this work, non-oxidative vapor phase dehydrogenation of cyclohexanol to cyclohexanone was carried out over monovalent copper using CuZnMg catalyst. The catalyst was prepared by co-precipitation method and characterized using different techniques, viz. XRD, FTIR, TPD, TPR, TGA, BET, SEM, EDX, and XPS. Cyclohexanol conversion of 55.0 % was resulted with 99.2 % selectivity of cyclohexanone at 260 ? with WHSV of 2.34 h-1. Time on stream study (125 h) and catalyst reusability studies were performed to find that the catalyst was robust, stable and easily reusable. A reaction mechanism over surface Cu+ is discussed and kinetics deduced.
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