| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to oil refining and petrochemical industry, particularly to methods of producing catalysts for converting straight-run gasoline to a high-octane gasoline component with low benzene content. Described is a catalyst containing the following, wt %: H-ZSM-5 type high-silica zeolite with silica modulus SiO/AlO= 30-50 - 94.0-99.0, and a heteropoly compound based on cobalt tungstobismuthate or cobalt tungstophosphate 1.0-6.0, formed during heat treatment. Described is a method of producing a catalyst by mechanochemical treatment of the H form a H-ZSM-5 type high-silica zeolite with silica modulus SiO/AlO=30-50 in a vibrating mill for 0.1-24 hours, moulding the catalyst mass into granules, drying and saturating with chloride solutions of corresponding heteropoly compounds of cobalt tungstobismuthate or cobalt tungstophosphate, followed by drying, and the catalyst is formed during heat treatment at 540-550°C for 0.1-12 hours. Described is a method of converting straight-run gasoline to a high-octane gasoline component in the presence of the described catalyst at 350-425°C, bulk speed of 1.0-2.0 hand pressure of 0.1-1.0 MPa.EFFECT: obtaining an active and selective catalyst for converting straight-run gasoline to a high-octane gasoline component with low benzene content of not more than 2,0 wt %.3 cl, 1 tbl, 6 ex |
