CRACKING CATALYST ADDITIVE TO REDUCE SULFUR OXIDE EMISSIONS AND METHOD OF ITS PREPARATION Russian patent published in 2024 - IPC B01J21/16 B01J21/04 B01J21/10 B01J23/10 B01J23/22 

FIELD: oil refining industry.

SUBSTANCE: disclosed is an additive to a cracking catalyst for reducing emissions of sulphur oxides, comprising an active component – mixed Ce, V, Mg, Al – oxide and a matrix consisting of aluminium oxide and natural clay, characterized in that the mixed Ce, V, Mg, Al oxide has a molar ratio of magnesium to aluminium of 6:1, contains 9–12 wt.% of cerium oxide and 1–2 wt.% of vanadium oxide, and matrix components used are aluminium oxide and bentonite clay with the following content of components in the additive, wt.%: mixed Ce, V, Mg, Al oxide 40–60; aluminium oxide 20–30; bentonite clay 20–30. Also disclosed is a method of preparing the additive.

EFFECT: obtaining an effective additive to a cracking catalyst to reduce emissions of sulphur oxides in regeneration gases when processing raw material with high sulphur content.

2 cl, 1 tbl, 23 ex