	US 12,545,849 B2
	Fuel compositions
Jacqueline Reid, Ellesmere (GB); Martin Roberts, Ellesmere (GB); Alan Ross, Ellesmere (GB); and Michael James Simms, Ellesmere (GB)
Assigned to INNOSPEC LIMITED, (GB)
Appl. No. 18/718,287
Filed by INNOSPEC LIMITED, Ellesmere (GB)
PCT Filed Dec. 14, 2022, PCT No. PCT/GB2022/053217 § 371(c)(1), (2) Date Jun. 10, 2024, PCT Pub. No. WO2023/111551, PCT Pub. Date Jun. 22, 2023.
Claims priority of application No. 2118103 (GB), filed on Dec. 14, 2021.
Prior Publication US 2025/0051673 A1, Feb. 13, 2025
Int. Cl. C10L 10/04 (2006.01); C10L 1/08 (2006.01); C10L 1/236 (2006.01)

CPC C10L 10/04 (2013.01) [C10L 1/08 (2013.01); C10L 1/236 (2013.01); C10L 1/2366 (2013.01); C10L 2270/026 (2013.01)]

23 Claims

1. A diesel fuel composition comprising (a) a quaternary ammonium salt additive; and (b) one or more nitrogen-free detergents; wherein the quaternary ammonium salt additive comprises the quaternised reaction product of a hydrocarbyl substituted succinic acid derived acylating agent and a compound able to react with said acylating agent and which includes a tertiary amine group; wherein each molecule of the hydrocarbyl substituted succinic acid derived acylating agent includes on average at least 1.2 succinic acid moieties.