METHOD OF PRODUCING HEXADECAHYDROPYRENE Russian patent published in 2020 - IPC C10G65/02 C10G45/44 C10G45/54 B01J29/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing hexadecahydropyrene, comprising: adding a starting material – hydrocarbon oil containing pyrene compounds to a hydrogenation reaction in the presence of a hydrogenation catalyst to produce hexadecahydropyrene. Pyrene compounds are selected from at least one substance from pyrene and its unsaturated hydrogenation products, the hydrogenation catalyst contains a carrier and an active metal component supported on the support, active metal component is Pt and/or Pd, the support contains fine crystalline zeolite Y, aluminum oxide and amorphous aluminosilicate, fine crystalline zeolite Y has average grain diameter of 200–700 nm, molar ratio SiO₂/Al₂O₃ 40–120, relative crystallinity ≥95 %, specific surface area 900–1,200 m²/g, and fraction of secondary pore diameter 1.7–10 nm is 50 % or more of total volume pores. Hydrogenation reaction process involves two reaction steps which are successively performed, percentage x₁ of the active metal component in the hydrogenation catalyst used in the first reaction step, lower than percentage x₂ of the active metal component in the hydrogenation catalyst used at the second reaction step and the percentage content y₁ of fine zeolite Y in the hydrogenation catalyst used in the first reaction step, higher than the percentage y₂ of fine crystalline zeolite Y in the hydrogenation catalyst used at the second reaction step.

EFFECT: obtaining high-purity hexadecahydropyrene product with high output.

21 cl, 14 ex, 7 tbl, 2 dwg