Fatty acid amide lubricity aids and related methods for improvement of lubricity of fuels
AssigneeBaker Hughes Incorporated
InventorsDavid R. Gentry, Mark P. Stehlin, Jerry J. Weers
Life of this patent
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Abstract
A fuel composition of improved lubricity comprises a lubricity-increasing amount of a lubricity aid dissolved in low sulfur diesel fuel and spark ignition fuels. The lubricity aid is an alkanolamide of a fatty acid, an alkanolamide of a modified fatty acid or a mixture thereof. If the lubricity aid is other than an alkanolamide of an aryl-substituted fatty acid, the composition further necessarily comprises a haze-inhibiting amount of a dehazer. The lubricity of such fuels may be enhanced without acceptably increasing the tendency of the fuel to become hazy upon contact with water.
Claims22
A method for improving the lubricity of a low sulfur diesel or spark ignition fuel, comprising adding to the fuel a lubricity-increasing amount of a lubricity aid selected from the group consisting of alkanolamides of aryl-substituted fatty acids and combinations of such alkanolamides.
A fuel composition of improved lubricity comprising a lubricity-increasing amount of a lubricity aid dissolved in a poor lubricity fuel selected from the group consisting of low sulfur diesel fuel and spark ignition fuels, the lubricity aid being selected from the group consisting of alkanolamides of aryl-substituted fatty of such alkanolamides.
A fuel lubricity additive comprising about 9 to about 20 parts by weight lubricity aid per part by weight dehazer, the lubricity aid being selected from the group consisting of alkanolamides of aryl-substituted fatty acids and combinations of such alkanolamides.
Dependencies are inferred from the claim text.