Fuel additives for enhanced lubricity and anti-corrosion properties
AssigneeBaker Hughes Incorporated
InventorsJianzhong Yang, Paul J. Biggerstaff
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Abstract
The reaction product resulting from the chemical reaction of an alkyl phenol with an acid or an anhydride selected from the group consisting of a saturated dicarboxylic acid, an unsaturated dicarboxylic acid, an anhydride of a saturated dicarboxylic acid, an anhydride of an unsaturated dicarboxylic acid, and combinations thereof, has been discovered to improve the properties of various fluids. In a non-limiting example, the reaction products may have an acid number from about 0 to about 50 that may improve the lubricity and/or corrosion of fuels and lubricants, such as hydrocarbon fuels and lubricants, when added thereto.
Claims22
A fuel composition comprising a distillate fuel and an additive comprising the reaction product of an alkyl phenol with an acid or an anhydride selected from the group consisting of a saturated dicarboxylic acid, an unsaturated dicarboxylic acid, an anhydride of a saturated dicarboxylic acid, an anhydride of an unsaturated dicarboxylic acid, and combinations thereof;
- and wherein the acid or anhydride of the dicarboxylic acid has from about 2 carbon atoms to about 30 carbon atoms.
A fuel composition comprising a distillate fuel and an additive comprising the reaction product of an oxyalkylated alkyl phenol that is esterified by an acid or an anhydride selected from the group consisting of a saturated dicarboxylic acid, an unsaturated dicarboxylic acid, an anhydride of a saturated dicarboxylic acid, an anhydride of an unsaturated dicarboxylic acid, and combinations thereof;
- and wherein the acid or anhydride of the dicarboxylic acid has from about 2 carbon atoms to about 30 carbon atoms.
A method of improving the lubricity and/or anti-corrosion properties of a low-sulfur content middle distillate fuel, where the method comprises adding to the middle distillate fuel an additive comprising the reaction product of an alkyl phenol with an acid or an anhydride selected from the group consisting of a saturated dicarboxylic acid, an unsaturated dicarboxylic acid, an anhydride of a saturated dicarboxylic acid, an anhydride of an unsaturated dicarboxylic acid, and combinations thereof, where the amount of the additive is effective to improve a property selected from the group consisting of lubricity, corrosion, and a combination thereof;
- and wherein the acid or anhydride of the dicarboxylic acid has from about 2 carbon atoms to about 30 carbon atoms.
A method of improving the lubricity and/or anti-corrosion properties of a low-sulfur content middle distillate fuel, where the method comprises adding to the middle distillate fuel an additive comprising the reaction product of an oxyalkylated alkyl phenol that is esterified by an acid or an anhydride selected from the group consisting of a saturated dicarboxylic acid, an unsaturated dicarboxylic acid, an anhydride of a saturated dicarboxylic acid, an anhydride of an unsaturated dicarboxylic acid, and combinations thereof;
- and where the amount of the additive is effective to improve a property selected from the group consisting of lubricity, corrosion, and a combination thereof;
- and wherein the acid or anhydride of the dicarboxylic acid has from about 2 carbon atoms to about 30 carbon atoms.
Dependencies are inferred from the claim text.