INTERNAL COMBUSTION ENGINE FUEL COMPOSITION Russian patent published in 1999 - IPC

FIELD: gasoline production. SUBSTANCE: composition based on mixture of gasoline fractions boiling away N-methylaniline within a range of 20 to 240 C and consisting of straight-run gasoline, thermal cracking and/or coking gasoline, and catalytic reforming gasoline to which N- methylaniline and oxygenates are added is distinguished by that the latter are methyl-tert-butyl ether or its mixture with tert-butyl alcohol (up to 30% in this mixture) and that composition additionally contains methanol and hydrogenated C₆-C₈-pyrolysis fraction at following weight percentage of components: methyl-tert-butyl ether or its mixture with tert-butyl alcohol straight-run gasoline 5-35, thermal cracking and/or coking gasoline 5-30, hydrogenated C₆-C₈-pyrolysis fraction up to 20, N- methylaniline 0.3-1.5, methanol 0.1-2.0, methyl-tert-butyl ether or its mixture with tert-butyl alcohol 3-15, catalytic reforming gasoline - the balance. EFFECT: enlarged choice of commercial lead-free gasolines containing no ash components. 3 tbl