Abstract
A series of Ni–La/γ-Al2O3 catalysts were prepared by adopting the methods of isometric impregnation and microwave impregnation. The catalysts were characterized with XRD, BET, and SEM, respectively. Inspecting the effects of adding La and the methods of impregnation on the hydrogenation activity of catalysts. The results show that adding a moderate amount of La promotes the dispersing of Ni on the carrier, the methods of microwave impregnation weaks the interaction between Ni and the carrier further, inhibits the formation of NiAl2O4, and the activity of catalyst prepared by the methods of microwave impregnation was significantly higher than that prepared by the methods of isometric impregnation. The hydrogenation activity of the Ni–La/γ-Al2O3 (WB) dipped with n(Ni): n(La) = 4: 1, microwave irradiation time 30 min with power 600W as well as calcined at 400°C exhibited the best performance. The conversion rate is 91.21% with reaction conditions: T = 160°C, p = 0.8 MPa, air speed 5 h–1, n(H2): n(benzene) = 2: 1.
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Liu, X., Liu, S. & Xu, P. Microwave-assisted Ni–La/γ-Al2O3 catalyst for benzene hydrogenation. Russ. J. Phys. Chem. 91, 2098–2102 (2017). https://doi.org/10.1134/S0036024417110334
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DOI: https://doi.org/10.1134/S0036024417110334