SUPPORT, METHOD OF PREPARING SAME (VERSIONS), METHOD OF PREPARING REFORMING CATALYST (VERSIONS) AND METHOD OF REFORMING GASOLINE FRACTIONS Russian patent published in 2015 - IPC B01J37/25 B01J23/14 B01J23/62 B01J21/04 B01J35/04 B01J35/08 C10G35/06 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of preparing a Sn(Zr)-γ-Al₂O₃ support for a gasoline fraction reforming catalyst, wherein the support is prepared by precipitating aluminium nitrate solution with aqueous ammonia solution, with subsequent steps of filtering the suspension and washing the precipitate, peptising the precipitate with an acid and simultaneously adding a modifying additive of Sn(Zr) by liquid-phase formation of a pseudo-sol in the form of spherical granules, followed by washing the spherical granules, drying and heat treatment, wherein a spherical support with a diameter of 1.7±0.1 mm is obtained, which is characterised by monomodal pore size distribution with specific surface area of (265-326) m²/g, pore volume of (0.6-0.68) cm³/g, average pore diameter of (8.0-9.6) nm, bulk density of (0.53-0.59) g/cm³ and mechanical bearing strength (148-205) kg/cm². The invention also relates to a method of preparing a reforming catalyst by saturating a Sn-γ-Al₂O₃ support with a solution containing 0.24-0.26 wt % chloroplatinic acid with respect to Pt, or saturating a Zr-γ-Al₂O₃ support with a solution containing 0.28-0.29 wt % perrhenic acid with respect to Re and 0.24-0.26 wt % chloroplatinic acid with respect to Pt. The invention also relates to a method of reforming gasoline fractions in the presence of catalysts prepared using methods described above.

EFFECT: high activity and selectivity of catalysts when reforming gasoline fractions.

13 cl, 2 tbl, 25 ex