US 12,241,034 B2
Synthetic lubricity additives for hydrocarbon fuels
Ashish Dhawan, Aurora, IL (US); Nestor U. Soriano, Jr., Missouri City, TX (US); and Karina Eureste, Houston, TX (US)
Assigned to Ecolab USA Inc., St. Paul, MN (US)
Filed by Ecolab USA Inc., St. Paul, MN (US)
Filed on Sep. 8, 2023, as Appl. No. 18/243,984.
Claims priority of provisional application 63/405,303, filed on Sep. 9, 2022.
Prior Publication US 2024/0117264 A1, Apr. 11, 2024
Int. Cl. C10L 10/08 (2006.01); C10L 1/222 (2006.01)
CPC C10L 10/08 (2013.01) [C10L 1/2225 (2013.01); C10L 2270/026 (2013.01)] 20 Claims
 
1. A method for improving the lubricity of a fuel composition comprising:
adding a composition comprising a compound of Formula I:

OG Complex Work Unit Chemistry
to a fuel composition,
wherein —R1, —R2, —R3, and —R4, are independently selected from—H, —OH, alkyl, aryl, alkyl aryl, and aryl alkyl, optionally substituted, —(CH2)xNR5R6, and a carbon- and oxygen-containing group including one or more oxygen atoms in the form of (i) a hydroxyl group, (ii) an ether group, (iii) an ester group, or more than one of (i)-(iii), wherein at least one of R1-R4 is the carbon- and oxygen-containing group, and the carbon- and oxygen-containing group has a C6-C30 linear, branched, cyclic alkyl, aryl, alkyl-aryl, or aryl-alkyl terminal portion, wherein x is an integer in the range of 1-4, wherein y is an integer in the range of 1-11, and wherein R5 and R6 have the same meaning as any one of R1-R4, optionally wherein the compound has a number of carbon atoms that is three times or greater than a number of nitrogen atoms in the compound,
wherein the compound improves lubricity of the fuel composition.