Vapour phase synthesis of 3,5-dipropylpyridine over modified zeolites |
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| Affiliation: | 1. Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK;2. College of Chemistry and Chemical Engineering. Guizhou University, Guiyang City, Guizhou, PR China;3. School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi Province, PR China;1. Department of Chemistry, Abdul Wali Khan University Mardan, K.P., Pakistan;2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;3. Institute of Chemical Sciences, University of Peshawar, 25120 K.P., Pakistan;4. Department of Biotechnology, Abdul Wali Khan University Mardan, Pakistan;1. Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran;2. Faculty of Chemical Engineering, University of Tabriz, Tabriz, Iran;1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;2. School of Science, China University of Petroleum, Qingdao 266580, China;3. Petrochemical Research Institute, China National Petroleum Company, Beijing 100195, China;4. Department of Chemistry, Abdul Wali Khan University Mardan, Pakistan;5. Department of Ecosystem Science and Management, Materials Research Institute, Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, United States |
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| Abstract: | 3,5-Dipropylpyridine was synthesized selectively in vapour phase with valeraldehyde, formaldehyde and ammonia over modified ZSM-5 (SiO2/Al2O3=30) catalysts at 400 °C. High conversion (>90%) and high yield (72%) were obtained over PbZSM-5(30). The activity was correlated with the acidity of the catalyst. The modified catalysts were characterized by XRD, FT-IR, ICP-MS, BET-surface area and temperature programmed desorption (TPD) of NH3. |
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