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US 11,008,526 B2Granted
Demulsifier for quaternary ammonium salt containing fuels
AssigneesCroda, Inc., Afton Chemical Corporation
InventorsDaniel Taylor, Makaye Tabibi
Life of this patent
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Abstract
Described herein are fuel performance additives, fuels including such additive, methods of improving the demulsiliblity of fuels using fuel performance additives, and the use of a fuel performance additive to improve the demulsiliblity of fuel where such fuels are gasoline or diesel and further include a quaternary ammonium salt obtained from at least the reaction of a nitrogen containing compound having at least a tertiary amino group and a quaternizing agent.
Claims26
A fuel performance additive comprising:
- (a) a quaternary ammonium salt obtained from the reaction of a nitrogen containing compound having at least a tertiary amino group and a quaternizing agent;
- and
- (b) a demulsifier component including a blend of (i) at least two alkoxylated phenol formaldehyde polymers including (i-1) a first alkoxylated phenol formaldehyde polymer having a relative solubility number of 18 to 22 and (i-2) a second alkoxylated phenol formaldehyde polymer having a relative solubility number of 12 to 16;
- (ii) an alkoxylated fatty acid polymer having a relative solubility number of 12 to 16;
- and (iii) an alkoxylated polyimine polymer having a relative solubility number of less than 10.
2 more elements
A method of improving the demulsibility of an additive-containing fuel, the method comprising:
- combining a major amount of fuel with (a) a quaternary ammonium salt fuel performance additive and (b) a demulsifier component including a blend of (i) at least two alkoxylated phenol formaldehyde polymers including (i-1) a first alkoxylated phenol formaldehyde polymer having a relative solubility number of 18 to 22 and (i-2) a second alkoxylated phenol formaldehyde polymer having a relative solubility number of 12 to 16;
- (ii) an alkoxylated fatty acid polymer having a relative solubility number of 12 to 16;
- and (iii) an alkoxylated polyimine polymer having a relative solubility number of less than 10.
Dependencies are inferred from the claim text.