METHOD OF PREPARING BALL-SHAPED CRACKING CATALYST

FIELD: cracking catalysts. SUBSTANCE: preparation of catalyst comprises mixing water suspension of zeolite Y in its ammonium form or rare-earth metal cation- ammonium form with (i) alumina aqueous suspension containing no more than 85% alpha-Al2O3 and 10-20% theta-Al2O3, and (ii) sodium silicate and...

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Hauptverfasser:	VERSHININ V.I, MEL'NIKOV V.B, BARSUKOV O.V, SMIRNOV V.K, PAVLOV M.L, PATRIKEEV V.A, LUK"JANCHIKOV I.I, IRISOVA K.N
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: cracking catalysts. SUBSTANCE: preparation of catalyst comprises mixing water suspension of zeolite Y in its ammonium form or rare-earth metal cation- ammonium form with (i) alumina aqueous suspension containing no more than 85% alpha-Al2O3 and 10-20% theta-Al2O3, and (ii) sodium silicate and aluminum sulfate solutions. Catalyst granules are then formed in column with mineral oil. Granules are activated by ammonium sulfate and then by mixed rare-earth element nitrates, washed to remove salts, dried, and calcined under atmosphere of flue gases and water steam to give catalyst with loose density 800 kg/cu. m. EFFECT: increased strength of catalyst (above 15 kg/ball), increased catalytic activity, and reduced shrinkage and splitting of catalyst. 1 tbl, 5 ex