METHOD OF PRODUCING HIGH-OCTANE GASOLINE FRACTIONS AND AROMATIC HYDROCARBONS Russian patent published in 2019 - IPC C10G59/02 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil refining, in particular, to two-stage methods of producing high-octane gasoline fractions and aromatic hydrocarbons C₆-C₁₀ using the gasoline fractions reforming process. At the first stage of the process, gasoline fractions are reformed by contacting the feed in the presence of a hydrogen-containing gas at pressure of 0.3–4.0 MPa and temperature of 440–550 °C with metal oxide reforming catalyst containing aluminum oxide, platinum or mixture of platinum and a promoter. At the second stage, the reaction mixture obtained at the first stage together with the additionally supplied raw material is subjected to contacting at temperature of 340–500 °C with a catalyst comprising a ZSM-5 (MFI) or ZSM-11 (MEL) zeolite structure, optionally with metals of II, III, IV, VI, VII and VIII groups of the periodic table of elements. As the additional raw material at the second stage hydrocarbon fractions boiling out in range of boiling points of petrol-and-volatile fractions, and / or oxygen-containing compounds of class of alcohols and / or ethers are used.

EFFECT: wider range of processed raw materials.

4 cl, 14 ex, 2 tbl