Major reaction pathways for hydrodeoxygenation of m-cresol over Pt/TiO2 catalyst
ZHAO Xiang-yu1, LI Mei2
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2. School of Science, Civil Aviation University of China, Tianjin 300300, China
Abstract: Pt/TiO2 catalyst is prepared by incipient wetness impregnation.In order to get the reaction pathways of m-cresol hydrodeoxygenation,m-cresol and its intermediate products such as methyl cyclohexanone,methyl cyclohexanol,methyl cyclohexane and toluene are investigated over Pt/TiO2 catalyst at 250oC and ambient hydrogen pressure.The structures and properties of Pt/TiO2 is also investigated by various techniques such as XRD,TEM,BET,XPS,CO chemisorption,NH3-TPD,H2-TPR etc.It is found that Pt particles disperse highly onto the TiO2 supporter.There are two main reaction pathways for hydrodeoxygenation of m-cresol.The first one is the direct deoxygenation to toluene (DDO path) and the second one is that hydrodeoxygenation of m-cresol forms firstly methylcyclohexanone and methylcyclohexanol over Pt,then these two intermediates perform rapidly dehydration to gain methylcyclohexene that is again hydrogenated to methylcyclohexane.Among these two pathways,DDO path is predominant.
赵翔宇, 李梅. Pt/TiO2催化间甲基苯酚加氢脱氧路径探究[J]. 现代化工, 2019, 39(3): 181-184,186.
ZHAO Xiang-yu, LI Mei. Major reaction pathways for hydrodeoxygenation of m-cresol over Pt/TiO2 catalyst. Modern Chemical Industry, 2019, 39(3): 181-184,186.
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