MICROSPHERICAL CATALYST FOR REDUCING SULPHUR CONTENT IN CRACKED GASOLINE AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC B01J29/08 B01J21/00 B01J21/02 B01J21/04 B01J21/16 B01J23/06 B01J37/30 B01J37/10 C10G11/05 

FIELD: chemistry.

SUBSTANCE: invention relates to the oil refining industry and specifically to preparation of catalysts for cracking oil fractions. Described is a microspherical catalyst for reducing sulphur content in cracked gasoline, which contains ultrastable zeolite Y in a cation-decationated form and a matrix whose components are bentonite clay, aluminium hydroxide, amorphous aluminosilicate and a magnesium-aluminium spinel with molar ratio Mg:Al of (2-3):1 or a zinc-magnesium-aluminium spinel with molar ratio Zn:Mg:Al of (1-2):(1-2):1, with the following content of components, wt %: zeolite Y 15-25; bentonite clay 15-25; aluminium hydroxide 15-25; amorphous aluminosilicate 25-40; magnesium-aluminium or zinc-magnesium-aluminium spinel 5-15. Described is a method of preparing said catalyst, involving ion exchange of ammonium cations and rare-earth elements on zeolite Y, ultrastabilisation of the zeolite in water vapour medium, mixing the zeolite with matrix components in form of bentonite clay, aluminium hydroxide, amorphous aluminosilicate and magnesium-aluminium hydrotalcite with molar ratio Mg:Al of (2-3):1 or zinc-magnesium-aluminium hydrotalcite with molar ratio Zn:Mg:Al of (1-2):(1-2):1, obtaining a composition and spray drying, followed by calcination.

EFFECT: low content of sulphur in cracked gasoline while maintaining high output of gasoline.

2 cl, 2 tbl, 8 ex