HYDROGENATION REFINEMENT METHOD OF HYDROCARBON MATERIAL Russian patent published in 2019 - IPC C10G45/08 B01J29/00 B01J23/88 B01J23/85 B01J21/04 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to methods of hydrogenation processing of hydrocarbon material in presence of catalyst system and can be used in oil refining industry. Disclosed is a method for hydrogenation refinement of hydrocarbon material at high temperature and pressure in the presence of a pack of catalysts, including a protective layer. Process of hydrogenation refining is carried out in one stage, and the pack of catalysts contains the following layers: A is an upper retaining layer, which is an inert ceramic material, B is a protective adsorption-catalytic layer, which is a nickel-bromotmolybdenum catalyst on a zeolite-containing alumina support; C is a cobalt-nickel-molybdenum catalyst of the base layer on an aluminum oxide support; D is a nickel-molybdenum tungsten catalyst on an aluminum oxide support, with the following ratio of layers, in % vol. - A:B:C:D - 5:(10÷20):(20÷35):(40÷65), wherein the stack of catalysts is first subjected to treatment with a mixture of hydrogen sulphide and hydrogen containing 70 vol. %. hydrogen sulphide, at temperature of 400-500 °C for two hours. Catalyst of layer B has the following chemical composition, wt. %: MoO₃ - not more than 7.0; NiO - not more than 1.1; CoO - not more than 0.7; P₂O₅ - not more than 1.0; zeolite-containing Al₂O₃ - balance. Catalyst of layer B has the following chemical composition, wt. %: MoO₃ - not more than 18.0; CoO - not more than 3.0; NiO - not more than 2.0; P₂O₅ not more than 0.8; γ-Al₂O₃ - balance. Catalyst of layer G has the following chemical composition, wt. %: MoO₃ - not more than 8.0; WO₃ - not more than 13.0; NiO - not more than 4.0; P₂O₅ not more than 0.8; γ-Al₂O₃ - balance up to 100.

EFFECT: technical result is obtaining hydro-buffified products with content of metals: nickel - not more than 1 mg/kg, vanadium - not more than 1 mg/kg.

8 cl, 3 ex