Fuel additive mixtures and fuels containing them

US10011795B1 · kind B1 · utility

Assignee

• Afton Chemical Corporation · US

Inventors

• Michel Nuckols · Midlothian, US
• Charles Shanahan · Richmond, US
• Scott A. Culley · Midlothian, US
• Keihann YAVARI · Margny-lès-Compiègne, FR
• Lieven Van Hecke · Kortrijk, BE

Key dates

• Filing date: Dec 27, 2017
• Grant date: Jul 3, 2018
• Expiry date: Dec 27, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/25
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A fuel additive concentrate for gasoline, a gasoline fuel containing an additive mixture, a method for reducing wear in an engine and in a fuel delivery system of a gasoline engine, and a method for improving injector performance. The additive concentrate includes an aromatic solvent and a mixture that contains (i) N,N-bis(2-hydroxyethyl)alkylamide, (ii) 2-((2-(bis(2-hydroxyethyl)amino)ethyl)amino)ethyl alkanoate and N-(2-(bis(2-hydroxyethyl)amino)ethyl)-N-(2-hydroxyethyl)alkylamide, and (iii) fatty acid ester(s) and amide(s) derived from a self-condensation product of diethanolamine (DEA) containing at least 3 amino groups. A weight ratio of (i) to (ii) to (iii) in the concentrate ranges from about 8:2:0 to about 2:5:3. The fuel additive mixture is substantially devoid of glycerin and remains fluid at a temperature down to about −20° C.