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Quinoline Hydrodenitrogenation over NiW/Al-MCM-41 Catalysts with Different Al Contents |
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| Authors: | Guo Fang Li Jun Li Wanxi Chen Xiuling Qi Hongxue Wang Xiaoxiao Yu Yue |
| Institution: | 1.Jin Zhong University, College of Chemistry and Chemical Engineering, Yuci, 030619, P. R. China ;2.Taiyuan University of Science and Technology, School of Chemical and Biological Engineering, Taiyuan, 030024, P. R. China ;3.Lin Yi Academy of Technology Cooperation and Application, Linyi, 276000, P. R. China ; |
| Abstract: | Al-MCM-41 materials were prepared with different Al contents and used as supports for NiW catalysts. The supports and catalysts were characterized by XRD, N2 adsorption-desorption, XPS, Raman, H2-TPR techniques. The XPS result showed that the Al added to MCM-41 promoted the dispersion of W and Ni species. The Raman result showed that the Al added to MCM-41 favored the formation of the suitable W species. The H2-TPR result showed that the Al added to MCM-41 can reduce the reduction temperature of W species on the catalysts. The hydrodenitrogenation (HDN) results showed that the HDN activity followed the order of NiW/Al-2 > NiW/Al-1 > NiW/Al-4 > NiW. Moreover, this tendency was also valid for the ratio of propylcyclohexane/propylbenzene (PCH/PB). The high HDN activity and PCH/PB ratio of NiW/Al-2 are due to the well dispersion of the W and Ni species, the suitable W species and the low reduction temperature of W species. |
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