RU2011110406A - ZEOLITE-CONTAINING CATALYST, METHOD FOR ITS PRODUCTION AND METHOD FOR CONVERTING LOW-OCTANE GASOLINE FRACTIONS TO HIGH-OCTANE GASOLINE WITHOUT AND IN THE PRESENCE OF HYDROGEN - Google Patents

Abstract

 1. Zeolite-containing catalyst for the conversion of low-octane gasoline fractions into high-octane gasoline containing ZSM-5 zeolite with a silicate module SiO2 / Al2O3 = 30-80 mol / mol and a residual content of sodium oxide of 0.03-0.1 wt.%, Zeolite structure elements and a binder component, characterized in that, as structural elements of the zeolite, the catalyst contains zirconium oxide, niobium oxide, molybdenum oxide and cobalt oxide or a mixture of oxides of these metals in the following components, wt.%:! zeolite 70.00-90.00 ZrO2 0-3.00 Nb2O5 0-3.00 MoO3 0-3.00 CoO 0-2.00 Na2O 0.03-0.1 binding component else! 2. A method of producing a zeolite-containing catalyst, including operations of mixing reagents, hydrothermal synthesis, washing, drying and calcining a precipitate, characterized in that the reaction mixture obtained by mixing aqueous solutions of aluminum nitrate, sodium hydroxide, silicic acid or silica gel brand KSKG, niobium pentachloride, zirconium sulfate, molybdenum trioxide, zeolite seed crystals with a ZSM-5 / MFI structure in Na or H form, a structurant, for example, butanol-1, monoethanolamine, dibutylamine, diethylene riamine, loaded into a reactor in which hydrothermal synthesis is carried out at a temperature of 175-185 ° C for 8-24 hours, after completion of hydrothermal synthesis, the pulp of the Na-form of the zeolite is filtered and the resulting precipitate is repulped in 1.0-2.0% aqueous solution of sodium hydroxide, the zeolite precipitate is filtered off, repulpated in a 2.0-3.0% aqueous solution of ammonium bicarbonate, the zeolite precipitate is filtered and sent to carry out acid or salt ion exchange by treatment with an aqueous solution

Claims (4)

1. Zeolite-containing catalyst for the conversion of low-octane gasoline fractions into high-octane gasoline containing zeolite ZSM-5 with a silicate module SiO ₂ / Al ₂ O ₃ = 30-80 mol / mol and a residual content of sodium oxide of 0.03-0.1 wt.% , structural elements of the zeolite and a binder component, characterized in that as the structural elements of the zeolite, the catalyst contains zirconium oxide, niobium oxide, molybdenum oxide and cobalt oxide or a mixture of oxides of these metals in the following components, wt.%: zeolite 70.00-90.00 ZrO ₂ 0-3.00 Nb ₂ O ₅ 0-3.00 MoO ₃ 0-3.00 Soo 0-2.00 Na ₂ O 0.03-0.1 binder component rest 2. A method of producing a zeolite-containing catalyst, including operations of mixing reagents, hydrothermal synthesis, washing, drying and calcining a precipitate, characterized in that the reaction mixture obtained by mixing aqueous solutions of aluminum nitrate, sodium hydroxide, silicic acid or silica gel brand KSKG, niobium pentachloride, zirconium sulfate, molybdenum trioxide, zeolite seed crystals with a ZSM-5 / MFI structure in Na or H form, a structurant, for example, butanol-1, monoethanolamine, dibutylamine, diethylene riamine, loaded into a reactor in which hydrothermal synthesis is carried out at a temperature of 175-185 ° C for 8-24 hours, after completion of hydrothermal synthesis, the pulp of the Na-form of the zeolite is filtered and the resulting precipitate is repulped in 1.0-2.0% an aqueous solution of sodium hydroxide, the zeolite precipitate is filtered off, repulpated in a 2.0-3.0% aqueous solution of ammonium bicarbonate, the zeolite precipitate is filtered and sent to carry out acid or salt ion exchange by treating it with an aqueous solution of nitric acid or aqueous solutions of salts ammo Ia with heating and stirring the pulp in the acid obtained after ion exchange or of the salt pulp is added ammonium bicarbonate, zeolite, the pulp was filtered, washed precipitate H or NH ₄ -form of the zeolite is dried and sent to a catalyst mass cooking operation by mixing zeolite powder with an active aluminum hydroxide and concentrated nitric acid, the resulting catalyst mass is extruded and granulated, the granules are dried at a temperature of 150 ° C and calcined at 550-600 ° C. 3. A method of converting low-octane gasoline fractions into high-octane gasoline using a zeolite-containing catalyst, comprising heating and passing raw materials through a zeolite-containing catalyst, characterized in that straight-run gasoline fractions are used as raw materials, which are passed through a stationary layer of a zeolite-containing catalyst heated to a temperature of 330- 420 ° C, with a catalyst load of raw materials 1-4 h ^-1 . 4. A method of converting low-octane gasoline fractions into high-octane gasoline using a zeolite-containing catalyst, comprising heating and passing the feed through a zeolite-containing catalyst, characterized in that straight-run gasoline fractions are used as feed which are passed through a stationary layer of a zeolite-containing catalyst heated to a temperature of 330- 420 ° C, with a catalyst load of raw materials of 1-4 h ^-1 and with additional supply of hydrogen to the reaction zone with a space velocity of 50-150 h ^-1 .