Synthetic lubricity additives for hydrocarbon fuels
AssigneeEcolab USA Inc.
InventorsSuresh R. Sriram, Nestor U. Soriano, Jr., Karina Eureste
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Abstract
Lubricity additives for hydrocarbon fuels are provided according to formula I: wherein n is 1 or 0; each Q is independently selected from oxygen and sulfur; each R is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted; and L is a linking group comprising 0-20 carbons which may be substituted or unsubstituted and may optionally comprise catenary heteroatoms. Fuel mixtures comprising a hydrocarbon fuel; and a lubricity additive according to the present disclosure are also provided. Methods of making lubricity additives comprise reacting an alkenyl succinic anhydrides (ASA's) with certain bisamides or bisthioamides.
Claims18
A lubricity additive according to formula I:
- wherein n is 1 or 0;
- wherein each Q is independently selected from oxygen and sulfur;
- wherein each R is independently selected from C8-C60 alkenyl groups which are substituted or unsubstituted;
- and
- wherein L is a linking group comprising 0-20 carbons which may be substituted or unsubstituted and may optionally comprise catenary heteroatoms.
A method of making a lubricity additive comprising reacting an alkenyl succinic anhydride according to formula II:
- with a species according to formula III:
- wherein R is a C8-C60 alkenyl group which is substituted or unsubstituted;
- wherein n is 1 or 0;
- wherein each Q is independently selected from oxygen and sulfur;
- and
- wherein L is a linking group comprising 0-20 carbons which may be substituted or unsubstituted and may optionally comprise catenary heteroatoms.
Dependencies are inferred from the claim text.