Hydrotreating catalyst and method for hydrotreatment of...

B - Operations – Transporting – 01 – J

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B01J 23/88 (2006.01) B01J 21/12 (2006.01) B01J 23/85 (2006.01) C10G 45/04 (2006.01) C10G 45/08 (2006.01) C10G 47/02 (2006.01) C10G 49/02 (2006.01) C10G 49/04 (2006.01)

Patent

CA 2278485

A hydrotreating catalyst composed essentially of a carrier having a Brønsted acid content of 50µ mol/g or above, e.g., one comprising silica, alumina and, if necessary, other components in which the silica is highly dispersed and which has a Brønsted acid content of 50µ mol/g or above, and at least one active component selected from among group 8 elements of the periodic table and at least one active component selected from among group 6 elements thereof which are supported on the carrier; and processes for hydrotreating hydrocarbon oil with the catalyst. The catalyst exhibits an excellent resistance to inhibition by hydrogen sulfide and a high desulfurization activity and can exert remarkable effects in the depth desulfurization of hydrocarbon oil having a high sulfur content, particularly a gas oil cut containing difficultly desulfurizable sulfur compounds. Further, the catalyst is extremely effective also in the hydrodenitrogenation, hydrocracking, hydrodearomatization, hydroisomerization and hydrorefining of hydrocarbon oil, and so on.

L'invention concerne un catalyseur d'hydrotraitement qui comprend essentiellement un vecteur dont la teneur en acide protonique est égale ou supérieure à 50 mu mol/g, par exemple du type renfermant de la silice, de l'alumine et, le cas échéant, d'autres constituants dans lesquels la silice est hautement dispersée, avec une teneur en acide protonique égale ou supérieure à 50 mu mol/g, et comportant au moins un élément actif choisi parmi les éléments du groupe 8 du tableau périodique et au moins un moins un élément actif choisi parmi les éléments du groupe 6 de ce tableau. L'invention concerne également des procédés relatifs à l'hydrotraitement d'huile hydrocarbure avec ce catalyseur, lequel a une excellente résistance à l'inhibition par le sulfure d'hydrogène et une activité de désulfuration prononcée, et qui donne des résultats remarquables dans la désulfuration approfondie de l'huile hydrocarbure à haute teneur en soufre, notamment dans le cas d'une coupe de gas-oil renfermant des composés soufrés à désulfuration difficile. Par ailleurs, le catalyseur considéré est très efficace en hydrodénitrogénation, hydrocraquage, hydrodéaromatisation, hydroisomérisation et hydroraffinage d'huile hydrocarbure, etc.

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