METHODS OF OBTAINING AND APPLICATION OF FUEL COMPOSITIONS Russian patent published in 2014 - IPC C10L1/22 C10L1/222 C10L1/224 C10L1/18 C10L10/00 C10L10/04 

FIELD: chemistry.

SUBSTANCE: invention relates to method of removing sediments from Diesel engine, including burning in engine fuel composition, which contains additive for engine purification, representing quaternary ammonium salt, where additive for engine purification is product of Mannich reaction, which takes place between: (a) aldehyde; (b) ammonia, hydrazine or amine; and (c) phenol, which can be substituted; and average molecular weight of single or each substituent of phenol component (c) constitutes less than 400, and where additive, which represents quaternary ammonium salt is obtained in reaction of nitrogen-containing substance, which includes at least one tertiary aminogroup, and quatrerning agent. Invention also relates to fuel composition, which contains combination of additive for engine purification and additive, which represents quaternary ammonium salt. Described is application of combination of quaternary ammonium salt and additive for engine purification for removing sediments from Diesel engine.

EFFECT: in application of claimed fuel composition in Diesel engine removal of sediments, in particular from sprayers, occurs, which leads to increase of sprayer service term duration without repair or substitution.

16 cl, 10 dwg, 7 ex, 6 tbl