| 简介 |
FIELD : petrochemical industry; methods of production of the cracking bead catalyst.SUBSTANCE : the invention is pertaining to the field of petrochemical industry, in particular, to the method of production of the cracking zeolite-containing catalysts (ZCCs). The bead catalyst is produced by mixing of the water solutions of the sodium silicate, aluminum sulfate and suspensions of NaY-type zeolite and alumina, molding of the hydrogel granules in the oil column, treatment with the solution of sodium sulfate and the following activation by the solution of ammonium sulfate or ammonium nitrate with the mixture of the rare-earth elements (REE), by the solution of the platonic-chloro-hydrogen acid, the drying and calcination in the steam aerosphere. At that the aluminum sulfate solution has the concentration of 0.5-7.0 kg/m3, and the calcinations is conducted at the steam concentration above 40 vol.%. The technical result of the invention is the controlled raise of the loose mass in the range of 650-850 kg/m3, the increase of activity and improvement of the mechanical properties of the bead catalyst.EFFECT : the invention ensures the controlled raise of the loose mass in the given above range, the increase of activity and improvement of the mechanical properties of the bead catalyst.6 ex, 1 tbl, 1 dwg |
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