| 摘要 |
The present invention relates to a hydrocracking catalyst containing nickel, tungsten, fluorine, zeolite as well as alumina, said catalyst is composed of, based on the total weight of the catalyst, 0.5-5.0wt% fluorine, 2.5-6.0wt% nickel oxide, 10-38wt% tungsten oxide, and a catalyst carrier. Said carrier is composed of 20-90wt% alumina and 10-80wt% zeolite wherein the zeolite is mesopore or macropore zeolite of an acidity strength value 1.0-2.0mmol/g determined by NH3-TPD, the alumina is the alumina of an acidity strength value 0.5-0.8mmol/g determined by NH3-TPD. Said catalyst possesses good desulfurization activity, denitrogenation activity, and higher selectivity with respect to middle distillates than that of the prior art. |
