MOTOR PETROL COMPOSITION Russian patent published in 2015 - IPC C10L1/04 C10L1/16 C10L1/18 

FIELD: chemistry.

SUBSTANCE: motor petrol composition includes an isomerisation product, aromatic hydrocarbons, alkylbenzene, methyl-tert-butyl ether, ethyl-tert-butyl ether, isooctane, wherein the isomerisation product used is a concentrate of C₅-C₆ isoparaffin hydrocarbons from an apparatus for isomerisation of light gasoline fractions with recycling of normal hexane or isomerisation product with full recycling of normal pentane and normal hexane, the aromatic hydrocarbons are toluene or p-xylene or a mixture thereof, and further contains isobutane, with the following ratio of components, wt %: concentrate of C₅-C₆ isoparaffin hydrocarbons from an apparatus for isomerisation of light gasoline fractions with recycling of normal hexane or isomerisation product with full recycling of normal pentane and normal hexane - 15-35; toluene or p-xylene or a mixture thereof - 18-38; isobutane - 1-8, methyl-tert-butyl ether or ethyl-tert-butyl ether - up to 15; alkylbenzene or isooctane - up to 100.

EFFECT: obtaining a motor petrol composition for augmented rating engines, having improved antiknock properties and lower sensitivity than counterparts.

2 cl, 3 tbl