	US 12,110,463 B2
	Emulsifier package with a branched and optionally with a propoxylated surfactant for fuel emulsion
Jochen Wagner, Ludwigshafen (DE); Marcel Harhausen, Ludwigshafen (DE); Thorsten Schoeppe, Ludwigshafen (DE); Simon Steppan, Ludwigshafen (DE); and Jens Meissner, Ludwigshafen (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 18/251,603
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Oct. 26, 2021, PCT No. PCT/EP2021/079627 § 371(c)(1), (2) Date May 3, 2023, PCT Pub. No. WO2022/096314, PCT Pub. Date May 12, 2022.
Claims priority of application No. 20205720 (EP), filed on Nov. 4, 2020; and application No. 20207016 (EP), filed on Nov. 11, 2020.
Prior Publication US 2024/0002739 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C10L 1/32 (2006.01); C10L 1/12 (2006.01); C10L 1/185 (2006.01)

CPC C10L 1/328 (2013.01) [C10L 1/125 (2013.01); C10L 1/1852 (2013.01); C10L 2200/0254 (2013.01); C10L 2200/0295 (2013.01); C10L 2250/082 (2013.01); C10L 2270/026 (2013.01); C10L 2300/20 (2013.01)]

20 Claims

1. A method for powering a diesel engine with a fuel emulsion, the method comprising:

preparing the fuel emulsion by emulsifying a fuel and water in the presence of an emulsifier package which comprises a branched surfactant of the formula (I)

R^a—O-(AO^a)_m—R^a′ (I),

in which

R^ais a branched C_6-32alkyl,

AO^ais an ethylene oxide radical, propylene oxide radical, butylene oxide radical, pentylene oxide radical, styrene oxide radical, or mixture thereof,

m is a number from 1 to 100, and

R^a′ is hydrogen or C_1-4alkyl; and

wherein the emulsifier package additionally comprises a propoxylated surfactant of the formula (II)

R^b—O—(AO^b)_n—R^b′ (II),

in which

R^bis a linear or branched C_6-32alkyl,

AO^bis a mixture of ethylene oxide radical and propylene oxide radical,

n is a number from 1 to 100, and

R^b′ is hydrogen or C_1-4alkyl.