53.褐炭液化油軽・中質油の系内水素化処理(4) : 触媒活性の経時変化(2)

抄録

Light-middle distillates from Victorian Brown Coal were hydrotreated with Ni-Mo/Al_2O_3 and Ni-Mo-P/Al_2O_3 catalyst to investigate the optimum hydrotreating conditions. It was shown that high denitrogenation activities were obtained during 1500 hours operatios at the reaction temperature of 380℃. It appeared that Ni-Mo-P/Al_2O_3 was morel active and stable than Ni-Mo/Al_2O_3 under near practical conditions.