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US 2019/0040332 A1Published application
Use of a hydrocarbyl-substituted dicarboxylic acid for improving or boosting the separation of water from fuel oils and gasoline fuels
AssigneeBASF SE
InventorsHarald BOEHNKE, Ludwig VOELKEL, Marc WALTER
Life of this patent
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Abstract
Use of a hydrocarbyl-substituted dicarboxylic acid for improving or boosting the separation of water from fuel oils and gasoline fuels which comprise additives with detergent action. A Fuel additive concentrate comprising the said hydrocarbyl-substituted dicarboxylic acid, certain additives with detergent action and optionally other customary additives and solvents or diluents.
Claims12
A method of improving separation of water from a fuel oil or a gasoline fuel, the method comprising:
- contacting (A) a polyisobutenylsuccinic acid having a polyisobutenyl substituent comprising 32 to 100 carbon atoms with a fuel oil or a gasoline fuel comprising
- (B) at least one nitrogen compound quaternized in the presence of an acid or in an acid-free manner, obtained by addition of a compound comprising at least one oxygen- or nitrogen-containing group reactive with an anhydride and additionally at least one quaternizable amino group onto a polycarboxylic anhydride compound and subsequent quaternization, as an additive with a detergent action, and
- (C) as an additive component, an alkoxylation copolymer comprising at least one alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, styrene oxide, and other oxides, as a dehazer.
A fuel additive concentrate for a fuel oil, comprising:
- (A) 0.01 to 40% by weight of a polyisobutenylsuccinic acid having a polyisobutenyl substituent comprising 20 to 200 carbon atoms;
- (B) 5 to 40% by weight of at least one additive with detergent action, wherein the at least one additive is selected from the group consisting of
- (i) a compound with a moiety derived from succinic anhydride and having a hydroxyl, amino, amido, and/or imido group;
- (ii) a nitrogen compound quaternized in the presence of an acid or in an acid-free manner, obtained by addition of a compound comprising at least one oxygen- or nitrogen-containing group reactive with an anhydride and additionally at least one quaternizable amino group onto a polycarboxylic anhydride compound and subsequent quaternization;
- and
- (iii) a polytetrahydrobenzoxazine or a bistetrahydrobenzoxazine;
- (C) 0 to 5% by weight of an alkoxylation copolymer comprising at least one alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, styrene oxide and other oxides such as epoxy based resins, as a dehazer;
- (D) 0 to 75% by weight of at least one cetane number improver;
- and
- (E) 0 to 50% by weight of at least one solvent or diluent.
7 more elements
Dependencies are inferred from the claim text.