PRESULFIDIZED CATALYST FOR HYDROFINING OF PETROLEUM FRACTIONS Russian patent published in 2006 - IPC B01J37/20 B01J27/19 C10G45/08 

FIELD: petroleum processing.

SUBSTANCE: invention concerns development of catalysts for use in petroleum fraction hydrofining processes. Presulfidized catalyst including alumina-supported cobalt, molybdenum, phosphorus, and boron, active components of which are converted into operational sulfide form using sulfidizing agent, in particular hydrogen sulfide, at sulfidizing temperature 80 to 500°C and hydrogen sulfide volume flow rate 0.02 to 6.00 h^-1, catalyst further contains lanthanum oxide. Composition of catalyst is the following, wt %: MoS₂ 8.0-17.0, Co₃S₂ 1.5-4.0, P₂O₅ 2.5-5.0, B₂O₃ 0.3-1.0, La₂O₃ 1.0-5.0, and alumina - the balance.

EFFECT: simplified catalyst preparation technology without losses in catalytic and mechanical properties.

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