Bulk and Al2O3-supported Ni2P HDS catalysts prepared by separating the nickel and hypophosphite sources |
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| Affiliation: | 1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, PR China;2. College of Science, China University of Petroleum (East China), Qingdao 266580, PR China;3. State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, PR China;4. Institute of Chemical and Bioengineering, ETH Zurich, 8093, Zurich, Switzerland;1. Laboratory of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;2. College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, China |
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| Abstract: | Bulk Ni2P and Al2O3-supported Ni2P were prepared at low phosphidation temperature (300 °C) from Ni9S8 and NH4H2PO2, which were separated to avoid the formation of phosphate inside the support pores. The unsupported product phases were characterized by XRD and the Ni2P/Al2O3 catalysts by XRD, BET and TEM. A 10 wt.% Ni2P/Al2O3 catalyst, made by the Ni(NO3)2–NiO–Ni9S8–Ni2P path at a P/Ni ratio of 3, showed the highest activity in the hydrodesulfurization of dibenzothiophene. By separating the nickel and hypophosphite sources, Ni2P/Al2O3 catalysts could be obtained at low phosphidation temperature and with low degree of blockage of pores by surplus phosphorus. |
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