METHOD OF PRODUCING CATALYTICALLY-SORPTION MATERIAL AND METHOD OF EXTRACTING ARSENIC IN ITS PRESENCE Russian patent published in 2019 - IPC B01J29/76 B01J37/00 B01J32/00 B01D53/06 C10G45/08 C22B3/44 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to the field of oil processing and petrochemistry, namely to the removal of arsenic and its compounds from oil fractions, and can be used in oil refineries during oil fractions purification from impurities for further production of diesel fuel and other oil products. Disclosed is a method of producing a catalytic sorption material for extracting arsenic from oil distillates, involving obtaining a mesoporous carrier from a mixture containing an organic compound of silicon and an aluminium compound, impregnating the obtained support with solutions of ammonium heptamolybdate and nickel nitrate. Method is characterized by that production of mesoporous carrier involves obtaining a solution of template - triblock copolymer of ethylene and propylene oxide in diluted hydrochloric acid, adding a preliminary prepared mixture of tetraethoxysilane and sec-butoxide of aluminium, stirring and holding at 90–100 °C, the ratio of silicon to aluminium in the obtained mesoporous support is 40–100, and solutions of ammonium heptamolybdate and nickel nitrate are taken in ratio which provides content in catalyst of 8–14 % of molybdenum and 4–8 % of nickel in terms of oxides. Also disclosed is a method of extracting arsenic from oil distillates by hydrotreatment in the presence of a developed catalytic sorption material at temperature of 340–380 °C and hydrogen pressure of 5–9 MPa.

EFFECT: technical result of the invention consists in obtaining a catalytic sorption material which provides a high degree of extraction of arsenic from fractions of petroleum distillates in the absence of hydrocracking of the target fraction, thereby achieving high output of the desired fractions, low formation of coke and light gases.

3 cl, 2 dwg, 4 tbl