%0 Journal Article %T Synthesis of NiMo catalysts supported on Mn-Al2O3 for obtaining green diesel from waste soybean oil %+ IRCELYON-Catalytic and Atmospheric Reactivity for the Environment (CARE) %A Vázquez-Garrido, I. %A López-Benítez, A. %A Guevara-Lara, A. %A Berhault, G. %< avec comité de lecture %@ 0920-5861 %J Catalysis Today %I Elsevier %V 365 %P 327 %8 2020-06 %D 2020 %R 10.1016/j.cattod.2020.06.001 %Z Chemical SciencesJournal articles %X The influence of adding manganese to an Al 2 O 3 support for preparing NiMo catalysts for the hydroconversion of soybean oil was herein evaluated. Two different Mn contents (1 and 5 mol % Mn) were used while Al 2 O 3-Mn x (x = 1 or 5 % mol Mn) were obtained by sol-gel method. The NiMo catalysts were obtained by wetness coimpregnation of nickel and molybdenum precursors onto the as-formed supports considering two different pH of impregnation (5 or 9). Solids were then characterized at the oxide state at different stages of preparation before being sulfided at 400°C for 4 h with 10 % H 2 S/H 2. Catalysts were then characterized at the sulfide state and evaluated for the hydroconversion of new and waste soybean oil at 380°C, P H2 = 40 bars. Results show clearly the superiority of NiMo catalysts supported on Al 2 O 3 with 1% mol Mn for the hydroconversion of new and waste soybean oil due to the stabilization of manganese oxide species on the alumina support helping to redisperse the Ni-promoted MoS 2 active phase. This study shows that through a precise control of the addition of manganese to Al 2 O 3 , it is possible to obtain very highly active NiMo catalysts for the hydroconversion of vegetable oils. %G English %L hal-03044020 %U https://cnrs.hal.science/hal-03044020 %~ CNRS %~ UNIV-LYON1 %~ IRCELYON %~ INC-CNRS %~ UDL %~ UNIV-LYON %~ TEST-HALCNRS %~ TEST2-HALCNRS