HYDROPROCESSING CATALYST AND METHODS OF MAKING AND USING SUCH CATALYST Russian patent published in 2017 - IPC B01J27/188 B01J27/185 C10G45/08 C10G47/12 B01J37/02 B01J37/20 B01J21/04 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of making a catalyst composition, suitable for hydroprocessing o hydrocarbon feedstock. Method involves preparation of a support particle, that is an inorganic oxide material; impregnating said support particle with a first aqueous impregnation solution comprising a first Group VIII metal component, a first Group VIB metal component and a first phosphorous component, to thereby provide a metal impregnated support; calcining said metal impregnated support to provide a base catalyst, comprising type I active sites and said first phosphorous component; impregnating said base catalyst with a second aqueous impregnation solution comprising a second Group VIII component, a second Group VIB component and a second phosphorous component to thereby provide a metal impregnated base catalyst; drying said metal impregnated base catalyst under non-calcination conditions that are controlled so as to provide a dried intermediate comprising type II active sites and said second phosphorous component; and sulphiding said dried intermediate, without a prior calcination thereof. Disclosed also is a version of method, catalyst composition, method of hydroprocessing hydrocarbon feedstock and a composition suitable in hydroprocessing hydrocarbon feedstock.

EFFECT: method enables optimisation and control of relative ratio of different types of catalytically active centres in catalyst composition to produce certain required results and improved catalytic properties.

28 cl, 1 dwg, 1 tbl, 5 ex