US20070193110A1 - Fuel lubricity additives - Google Patents
Fuel lubricity additives Download PDFInfo
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- US20070193110A1 US20070193110A1 US11/358,024 US35802406A US2007193110A1 US 20070193110 A1 US20070193110 A1 US 20070193110A1 US 35802406 A US35802406 A US 35802406A US 2007193110 A1 US2007193110 A1 US 2007193110A1
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- 0 *CCN1C(*)=NC(C)C1C Chemical compound *CCN1C(*)=NC(C)C1C 0.000 description 13
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
- C10L1/2406—Organic compounds containing sulfur, selenium and/or tellurium mercaptans; hydrocarbon sulfides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/232—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
- C10L1/2406—Organic compounds containing sulfur, selenium and/or tellurium mercaptans; hydrocarbon sulfides
- C10L1/2418—Organic compounds containing sulfur, selenium and/or tellurium mercaptans; hydrocarbon sulfides containing a carboxylic substituted; derivatives thereof, e.g. esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/08—Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
- C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
Definitions
- the present disclosure relates to a fuel lubricity additive comprising an imidazoline.
- the fuel lubricity additive may be useful for improving the lubricity of fuels and reducing wear in internal combustion engines.
- imidazoline derivatives in fuels to modify engine performance, e.g., as detergents, anti-corrosive agents, and to minimize fuel vaporization.
- U.S. Pat. No. 3,036,902 discloses certain imidazoline derivatives as being useful for reducing the incidence of carburetor icing. The derivatives are combined with an alkanol to form a deicing composition. There is no disclosure of, inter alia, lubricity additives.
- U.S. Pat. No. 6,562,086 discloses a diesel fuel and spark ignition fuel lubricity aid containing an alkanolamide of a fatty acid, an alkanolamide of a modified fatty acid or a mixture thereof.
- the preparation of alkanolamides as lubricity additives is known.
- Such alkanolamides may not be as effective in reducing engine wear as the fuel lubricity additives of the present disclosure.
- a fuel lubricity additive comprising an imidazoline of the following formula: wherein R may be chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups; R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano, and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups; A may be chosen from SH, OH, and NY 2 groups; and Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each of which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups.
- amino herein is meant any mono-, di-, tri- and polyamines, and mixtures thereof.
- a fuel lubricity additive comprising an imidazoline
- said imidazoline may be prepared by a process comprising reacting a compound of formula (I): with a compound of formula (II): to yield an imidazoline of formula (III):
- R may be chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups
- R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano, and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups
- A may be chosen from SH, OH and NY 2 groups
- Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each of which may be unsubstituted or substituted with at least one of
- the imidazoline compounds described herein may be effective in reducing friction and wear resulting from the combustion of fuels, including gasoline, diesel, and biodiesel fuels.
- the imidazolines useful as fuel lubricity additives may be represented by the following general formula: ein R may be chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, which may be further substituted with at least one of hydroxyl, nitro, amino, and cyano groups; R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano, and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups; A may be chosen from SH, OH and NY 2 groups; and Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each or which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups.
- the imidazolines of formula (III) may be obtained by reacting a suitable organic acid with a polyamine, such as a diamine or a triamine, each of which may be substituted with other groups such as, for example, hydroxyl groups.
- a polyamine such as a diamine or a triamine, each of which may be substituted with other groups such as, for example, hydroxyl groups.
- the reaction may involve the elimination of two molecules of water between the acid and the amine.
- the reaction may be represented by the following equation:
- Acids which are useful in preparing the imidazolines include those that are capable of reacting with a polyamine to form an imidazoline, such as those represented by the following formula (I): wherein R is chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, each of which is unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups.
- Suitable acids for the purposes of the present disclosure include optionally substituted mono-carboxylic acids having up to about 25 carbon atoms.
- Non-limiting examples include unsaturated organic acids such as 9,10-decylenic acid, octenoic acid, oleic acid, linoleic acid and the like.
- Suitable acids include isooleic acid, isostearic acid, and tall oil fatty acid, (such as commercial mixtures of predominantly oleic and linoleic acids, stearic and others known to those skilled in the art) and naphthenic acid.
- the fuel lubricity additives disclosed herein comprise at least one imidazoline compound and optionally at least one solvent or co-solvent for the purposes of, e.g., facilitating handling and blending of the compound.
- Suitable solvents include alcohols (e.g., methanol, ethanol, isopropanol), 2-ethylhexanol, ketones (acetone, methyl ethyl ketone), esters (tert-butyl acetate), and ethers (e.g., methyl tert-butyl ether).
- Aromatic hydrocarbons may also be useful solvents, such as Aromatic 100-150. Suitable non-limiting examples of aromatic hydrocarbons comprise benzene, toluene, and/or xylene, and higher molecular weight aromatic solvents.
- the present disclosure also relates to fuel compositions comprising fuel in a major amount, and the fuel lubricity additive disclosed herein in a minor amount.
- suitable fuels include, by way of non-limiting example, diesel fuel, biodiesel fuel, gasoline emulsions, diesel emulsions, gasoline-alcohol blends, diesel-alcohol blends, gasoline, and mixtures thereof.
- the fuel lubricity additive may be used at a concentration providing the desired amount of lubricity to the fuel.
- a useful range may be, for example, about 1 to about 5000 pounds per thousand barrels (ptb), for example 5 to 2000 ptb, or 5 to 500 ptb.
- the fuel lubricity additive may be added to the gasoline or diesel fuel at the refinery or at any stage of subsequent storage, shipment (such as pipeline), or delivery (such as pump stations). It may be manufactured as an after-market gasoline or diesel additive and sold over the counter in a package to a consumer, who then adds it directly to a fuel tank.
- Diesel fuel may include any of the various mixtures of hydrocarbons which can be used as diesel fuels and thus include distillate and residual fuel oils, blends of residual fuel oils with distillates, gas oils, recycled stock from cracking operations and blends of straight run and cracked distillates.
- Biodiesel has long been known as an alternative diesel fuel and may be obtained by, for example, subjecting oil obtained from oleaginous seeds to various filtration and extraction techniques well-known to those of ordinary skill in the art.
- the fuel compositions disclosed herein may contain at least one additional ingredient besides fuel and the fuel lubricity additive.
- the fuel compositions may comprise at least one of dispersants, detergents, oxygenates, antioxidants, carrier fluids, metal deactivators, dyes, markers, pour-point depressants, corrosion inhibitors, biocides, cetane improvers, antistatic additives, stabilizers, anti-foam agents, drag-reducing agents, demulsifiers, dehazers, anti-icing additives, anti-knock additives, anti-valve-seat recession additives, additional lubricity additives, and combustion improvers.
- Oxygenates herein can include for example and without limitation methanol, ethanol, esters, ethers, combustion improvers, and antiknock materials. Particularly useful herein is the additional antiknock ingredient methyl cyclopentadienyl manganese tricarbonyl, at for example a level of 20-200 milligrams per liter of fuel.
- reaction scheme A Several compounds were made with different starting materials using the following reaction schemes: wherein R was a saturated or unsaturated, aromatic, branched or linear, alkyl group and A was either OH or NH 2 .
- R was a saturated or unsaturated, aromatic, branched or linear, alkyl group and A was either OH or NH 2 .
- Compounds produced according to reaction scheme A are known to be additives suitable for modifying the lubricity of gasoline and diesel fuel, and were thus compared against inventive fuel lubricity additives produced according to scheme B.
- the steel ball assembly is removed. Wear, and hence the lubricity of the fuel, is assessed by measuring the mean wear scar diameter on the ball, resulting from oscillating contact with the disk. The smaller the wear scar obtained, the greater the lubricity of the fuel. A low coefficient of friction and a low wear scar are evidence of a good lubricating effect.
- Table 1 compares the HFRR performance in gasoline of a number of additives produced using both reaction schemes. Materials produced from the identical starting acids using inventive scheme B consistently outperformed the comparative fuel lubricity additives produced using scheme A. The friction coefficient values given in Tables 1 and 2 are an average over the entire 75-minute test.
- Fuels 1 and 2 are typical U.S. unadditized gasolines.
- Table 2 demonstrates the wear scar diameters obtained from the incorporation into the diesel fuel of the noninventive samples 1-3 and contain embodiments of the present invention samples 4-7.
Abstract
Description
- 1. Field of the Invention
- The present disclosure relates to a fuel lubricity additive comprising an imidazoline. The fuel lubricity additive may be useful for improving the lubricity of fuels and reducing wear in internal combustion engines.
- 2. Background of the Invention
- In order to reduce pollution and conserve energy, automobiles are constantly being engineered to give improved gasoline mileage. This effort is a result, at least in part, of governmental regulation enacted to compel auto manufacturers to achieve prescribed gasoline mileage. In an effort to achieve the required mileage, a number of cars are being down-sized. However, there are limits in this approach beyond which the cars will not accommodate a typical family. Another way to improve fuel mileage is to reduce engine wear attributable in part to engine friction. The present disclosure relates to fuel lubricity additives for gasoline and diesel fuels, as well as methods for reducing engine wear.
- It is known to use imidazoline derivatives in fuels to modify engine performance, e.g., as detergents, anti-corrosive agents, and to minimize fuel vaporization. U.S. Pat. No. 3,036,902 discloses certain imidazoline derivatives as being useful for reducing the incidence of carburetor icing. The derivatives are combined with an alkanol to form a deicing composition. There is no disclosure of, inter alia, lubricity additives.
- U.S. Pat. No. 6,562,086 discloses a diesel fuel and spark ignition fuel lubricity aid containing an alkanolamide of a fatty acid, an alkanolamide of a modified fatty acid or a mixture thereof. The preparation of alkanolamides as lubricity additives is known. Such alkanolamides, however, may not be as effective in reducing engine wear as the fuel lubricity additives of the present disclosure.
- In accordance with the present disclosure, there is provided a fuel lubricity additive comprising an imidazoline of the following formula:
wherein R may be chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups; R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano, and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups; A may be chosen from SH, OH, and NY2 groups; and Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each of which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups. By “amino” herein is meant any mono-, di-, tri- and polyamines, and mixtures thereof. - According to another aspect of the present disclosure, there is provided a fuel lubricity additive comprising an imidazoline, wherein said imidazoline may be prepared by a process comprising reacting a compound of formula (I):
with a compound of formula (II):
to yield an imidazoline of formula (III):
wherein R may be chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups; R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano, and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups; A may be chosen from SH, OH and NY2 groups; and Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each of which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups. - It is to be understood that both the foregoing and following description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
- The tables herein illustrate aspects of the invention and together with the description, serve to explain the principles of the invention.
- Interest in lubricity additives for both gasoline and diesel fuel has been increasing. This has been driven by the new requirements on diesel fuel lubricity (ASTM maximum 520 μm wear scar diameter using High Frequency Reciprocating Rig (HFRR)) and the desire for gasoline additives that improve fuel economy. The imidazoline compounds described herein may be effective in reducing friction and wear resulting from the combustion of fuels, including gasoline, diesel, and biodiesel fuels.
- The imidazolines useful as fuel lubricity additives may be represented by the following general formula:
ein R may be chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, which may be further substituted with at least one of hydroxyl, nitro, amino, and cyano groups; R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano, and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups; A may be chosen from SH, OH and NY2 groups; and Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each or which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups. - The imidazolines of formula (III) may be obtained by reacting a suitable organic acid with a polyamine, such as a diamine or a triamine, each of which may be substituted with other groups such as, for example, hydroxyl groups. The reaction may involve the elimination of two molecules of water between the acid and the amine. The reaction may be represented by the following equation:
- Acids which are useful in preparing the imidazolines include those that are capable of reacting with a polyamine to form an imidazoline, such as those represented by the following formula (I):
wherein R is chosen from saturated and unsaturated, linear, aromatic, branched, and cyclic hydrocarbyl groups, each of which is unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups. Suitable acids for the purposes of the present disclosure include optionally substituted mono-carboxylic acids having up to about 25 carbon atoms. Non-limiting examples include unsaturated organic acids such as 9,10-decylenic acid, octenoic acid, oleic acid, linoleic acid and the like. Other suitable acids include isooleic acid, isostearic acid, and tall oil fatty acid, (such as commercial mixtures of predominantly oleic and linoleic acids, stearic and others known to those skilled in the art) and naphthenic acid. - Suitable polyamines include those that form an imidazoline upon reaction with an organic acid. According to certain aspects of the present disclosure, the polyamines may be represented by the formula (II):
R′ may be independently chosen from hydrogen, hydroxyl, nitro, amino, cyano,. and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups; A may chosen from SH, OH and NY2 groups; and Y may be independently chosen from hydrogen and saturated and unsaturated, linear, aromatic, branched and cyclic hydrocarbyl groups, each of which may be unsubstituted or substituted with at least one of hydroxyl, nitro, amino, and cyano groups. Non-limiting examples of polyamines suitable for the purposes of the present disclosure include hydroxyethyl ethylene diamine, ethylene diamine, aminoethyl ethanolamine, diethylene triamine, hydroxyethyl diethylene triamine, and the like. - The fuel lubricity additives disclosed herein comprise at least one imidazoline compound and optionally at least one solvent or co-solvent for the purposes of, e.g., facilitating handling and blending of the compound. Suitable solvents include alcohols (e.g., methanol, ethanol, isopropanol), 2-ethylhexanol, ketones (acetone, methyl ethyl ketone), esters (tert-butyl acetate), and ethers (e.g., methyl tert-butyl ether). Aromatic hydrocarbons may also be useful solvents, such as Aromatic 100-150. Suitable non-limiting examples of aromatic hydrocarbons comprise benzene, toluene, and/or xylene, and higher molecular weight aromatic solvents.
- According to one aspect of the disclosure, the solvent is a commercial blend of aromatics. The molar ratio of acid to amine is generally from 1:2 to 3:1 in one embodiment, and 1:2 to 2:1 in another embodiment. Especially useful are acid to amine ratios of 1:1 to 2:1.
- The present disclosure also relates to fuel compositions comprising fuel in a major amount, and the fuel lubricity additive disclosed herein in a minor amount. Suitable fuels include, by way of non-limiting example, diesel fuel, biodiesel fuel, gasoline emulsions, diesel emulsions, gasoline-alcohol blends, diesel-alcohol blends, gasoline, and mixtures thereof. The fuel lubricity additive may be used at a concentration providing the desired amount of lubricity to the fuel. A useful range may be, for example, about 1 to about 5000 pounds per thousand barrels (ptb), for example 5 to 2000 ptb, or 5 to 500 ptb. The fuel lubricity additive may be added to the gasoline or diesel fuel at the refinery or at any stage of subsequent storage, shipment (such as pipeline), or delivery (such as pump stations). It may be manufactured as an after-market gasoline or diesel additive and sold over the counter in a package to a consumer, who then adds it directly to a fuel tank.
- Diesel fuel may include any of the various mixtures of hydrocarbons which can be used as diesel fuels and thus include distillate and residual fuel oils, blends of residual fuel oils with distillates, gas oils, recycled stock from cracking operations and blends of straight run and cracked distillates. Biodiesel has long been known as an alternative diesel fuel and may be obtained by, for example, subjecting oil obtained from oleaginous seeds to various filtration and extraction techniques well-known to those of ordinary skill in the art.
- The fuel compositions disclosed herein may contain at least one additional ingredient besides fuel and the fuel lubricity additive. For example, the fuel compositions may comprise at least one of dispersants, detergents, oxygenates, antioxidants, carrier fluids, metal deactivators, dyes, markers, pour-point depressants, corrosion inhibitors, biocides, cetane improvers, antistatic additives, stabilizers, anti-foam agents, drag-reducing agents, demulsifiers, dehazers, anti-icing additives, anti-knock additives, anti-valve-seat recession additives, additional lubricity additives, and combustion improvers. Oxygenates herein can include for example and without limitation methanol, ethanol, esters, ethers, combustion improvers, and antiknock materials. Particularly useful herein is the additional antiknock ingredient methyl cyclopentadienyl manganese tricarbonyl, at for example a level of 20-200 milligrams per liter of fuel.
- Several compounds were made with different starting materials using the following reaction schemes:
wherein R was a saturated or unsaturated, aromatic, branched or linear, alkyl group and A was either OH or NH2. Compounds produced according to reaction scheme A are known to be additives suitable for modifying the lubricity of gasoline and diesel fuel, and were thus compared against inventive fuel lubricity additives produced according to scheme B. - The synthesized materials were tested in the High Frequency Reciprocating Rig (HFRR) for their ability to reduce friction and wear in both gasoline and diesel fuel. The HFRR apparatus and the procedure used are described as follows: a steel ball is attached to an oscillating arm assembly and is mated to a steel disk specimen in the HFRR sample cell. The sample cell contains 2 ml of the fuel being tested and the sample is maintained in a bath at a temperature of 600 C for diesel but 25° C. for gasoline. A load of 200 grams is applied to the ball/disk interface by dead weights. The ball assembly is oscillated over a 1 mm path at a rate of 50 Hertz. These conditions ensure that a fluid film does not build up between the ball and disk. After a prescribed period of time (for example, 75 minutes), the steel ball assembly is removed. Wear, and hence the lubricity of the fuel, is assessed by measuring the mean wear scar diameter on the ball, resulting from oscillating contact with the disk. The smaller the wear scar obtained, the greater the lubricity of the fuel. A low coefficient of friction and a low wear scar are evidence of a good lubricating effect.
- Table 1 compares the HFRR performance in gasoline of a number of additives produced using both reaction schemes. Materials produced from the identical starting acids using inventive scheme B consistently outperformed the comparative fuel lubricity additives produced using scheme A. The friction coefficient values given in Tables 1 and 2 are an average over the entire 75-minute test.
TABLE 1 HFRR of Experimental Lubricity Additives in Gasoline Reac- Treat Friction Wear tion Rate Coeffi- Scar Fuel Additive Chemistry Scheme (PTB) cient* (um) G1 — — — 0.299 485 G1 Isostearic Acid/DEA A 50 0.219 365 G1 Iso-oleic Acid/DEA A 50 0.237 445 G1 Iso-oleic Acid/DEA A 50 0.235 430 G1 Naphthenic Acid/DEA A 50 0.276 515 G1 Iso-oleic Acid/DEA A 100 0.200 342.5 G1 Isostearic Acid/AEEA B 50 0.216 370 G1 Naphthenic Acid/AEEA B 50 0.235 370 G1 Isostearic Acid/DETA B 50 0.213 325 G2 — — — 0.434 780 G2 Isostearic Acid/DEA A 100 0.236 438 G2 Isostearic Acid/AEEA B 100 0.223 325 G2 Isostearic Acid/AEEA B 50 0.254 400
*Friction Coefficient = F/P where F is the measured friction force and P is the applied load
Iso-oleic Acid = Century 1164 Isooleic Acid from Arizona Chemical Company
Isostearic Acid = Century 1105 Isostearic Acid from Arizona Chemical Company
Nap Acid = Naphthenic Acid from Merrichem Company
DEA = Diethanolamine
AEEA = Aminoethyl ethanolamine
DETA = Diethylenetriamine
G1 = Unadditized gasoline from Sunoco
G2 = Unadditized gasoline from Citgo
- Fuels 1 and 2 are typical U.S. unadditized gasolines.
- The results in Table 1 demonstrate that the inventive fuel lubricity additives may substantially improve the lubricity of a fuel as compared to the fuel lubricity additives prepared by scheme A.
- The HFRR test was again conducted using an ultra low sulfur diesel fuel obtained from a U.S. refinery instead of gasoline. Table 2 shows that the superior performance from scheme B fuel lubricity additives extends to diesel fuel.
TABLE 2 HFRR of Experimental Lubricity Additives in Diesel Fuel Reac- Treat Friction Wear tion Rate Coeffi- Scar Fuel Additive Chemistry Scheme (ppm) cient* (um) ULSD1 Base Fuel - No Additive — — 0.391 637.5 ULSD1 TOFA — 100 0.230 435 ULSD1 TOFA/DEA A 100 0.213 380 ULSD1 Isostearic Acid/AEEA B 100 0.230 417 ULSD1 TOFA/DETA B 100 0.253 480 ULSD1 TOFA/AEEA B 100 0.244 460
*Friction Coefficient = F/P where F is the measured friction force and P is the applied load
ULSD1 = Ultra Low Sulfur Diesel Fuel from Conoco Phillips
Isostearic Acid = Century 1105 Isostearic Acid from Arizona Chemical Company
TOFA = Tall Oil Fatty Acid from Arizona Chemical Company
DEA = Diethanolamine
AEEA = Aminoethyl ethanolamine
DETA = Diethylenetriamine
- Table 2 demonstrates the wear scar diameters obtained from the incorporation into the diesel fuel of the noninventive samples 1-3 and contain embodiments of the present invention samples 4-7.
- Other aspects of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (46)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/358,024 US20070193110A1 (en) | 2006-02-21 | 2006-02-21 | Fuel lubricity additives |
SG200700935-0A SG135110A1 (en) | 2006-02-21 | 2007-02-07 | Fuel lubricity additives |
BE2007/0076A BE1018136A3 (en) | 2006-02-21 | 2007-02-20 | FUEL ONCTUOSITY ADDITIVES, AND FUEL COMPOSITIONS CONTAINING THE SAME. |
DE102007008532A DE102007008532A1 (en) | 2006-02-21 | 2007-02-21 | Fuel lubrication additives |
CNA2007100058708A CN101024787A (en) | 2006-02-21 | 2007-02-25 | Fuel lubricity additives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/358,024 US20070193110A1 (en) | 2006-02-21 | 2006-02-21 | Fuel lubricity additives |
Publications (1)
Publication Number | Publication Date |
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US20070193110A1 true US20070193110A1 (en) | 2007-08-23 |
Family
ID=38320079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/358,024 Abandoned US20070193110A1 (en) | 2006-02-21 | 2006-02-21 | Fuel lubricity additives |
Country Status (5)
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US (1) | US20070193110A1 (en) |
CN (1) | CN101024787A (en) |
BE (1) | BE1018136A3 (en) |
DE (1) | DE102007008532A1 (en) |
SG (1) | SG135110A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080092544A1 (en) * | 2006-10-18 | 2008-04-24 | Lean Flame, Inc. | Premixer for gas and fuel for use in combination with energy release/conversion device |
US20120023811A1 (en) * | 2009-02-26 | 2012-02-02 | Dorivale Holdings Limited | Biodiesel containing non-phenolic additives and thereby possessing enhanced oxidative stability and low acid number |
US20120260876A1 (en) * | 2009-06-01 | 2012-10-18 | Innospec Limited | Method of increasing fuel efficiency |
US8549862B2 (en) | 2009-09-13 | 2013-10-08 | Lean Flame, Inc. | Method of fuel staging in combustion apparatus |
EP3690009A1 (en) * | 2019-01-31 | 2020-08-05 | Afton Chemical Corporation | Fuel additive mixture providing rapid injector clean-up in high pressure gasoline engines |
WO2023183460A1 (en) | 2022-03-23 | 2023-09-28 | Innospec Fuel Specialities Llc | Compositions, methods and uses |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101423782B (en) * | 2007-11-02 | 2013-01-09 | 上海焦化有限公司 | Dimethyl ether fuel lubricant |
FR3097874B1 (en) * | 2019-06-28 | 2022-01-21 | Total Marketing Services | Lubricating composition for preventing corrosion and/or tribocorrosion of metal parts in an engine |
EP4092099A1 (en) * | 2021-05-20 | 2022-11-23 | TUNAP GmbH & Co. KG | Bioactive additive for fuel and uses thereof, fuel composition and method |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036902A (en) * | 1958-03-03 | 1962-05-29 | Standard Oil Co | Motor fuel composition |
US3644393A (en) * | 1969-08-29 | 1972-02-22 | Gulf Research Development Co | Lecithin mixtures and reaction products of 1 2-disubstituted imidazoline |
US4247300A (en) * | 1978-04-27 | 1981-01-27 | Phillips Petroleum Company | Imidazoline fuel detergents |
US4273665A (en) * | 1979-10-09 | 1981-06-16 | Mobil Oil Corporation | Friction reducing additives and compositions thereof |
US4298486A (en) * | 1979-11-23 | 1981-11-03 | Mobil Oil Corporation | Friction reducing additives and compositions thereof |
US4511367A (en) * | 1984-06-13 | 1985-04-16 | Ethyl Corporation | Corrosion inhibitors for alcohol containing motor fuel |
US4518782A (en) * | 1981-08-10 | 1985-05-21 | Texaco Inc. | Fuel compositions containing N-alkyl glycyl imidazoline |
US4797134A (en) * | 1987-08-27 | 1989-01-10 | Wynn Oil Company | Additive composition, for gasoline |
US5575823A (en) * | 1989-12-22 | 1996-11-19 | Ethyl Petroleum Additives Limited | Diesel fuel compositions |
US5833721A (en) * | 1993-08-03 | 1998-11-10 | Exxon Chemical Patents Inc | Additive for hydrocarbon oils |
US20030056431A1 (en) * | 2001-09-14 | 2003-03-27 | Schwab Scott D. | Deposit control additives for direct injection gasoline engines |
US6562086B1 (en) * | 1997-06-26 | 2003-05-13 | Baker Hughes Inc. | Fatty acid amide lubricity aids and related methods for improvement of lubricity of fuels |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3615291A (en) * | 1966-04-25 | 1971-10-26 | Gulf Research Development Co | Ethoxylated or propoxylated 1,2,4- or 1,2,5-trisubstituted imidazolines and lecithin mixtures and reaction products thereof |
US3527583A (en) * | 1966-04-25 | 1970-09-08 | Gulf Research Development Co | Motor fuel multipurpose agents |
US3582295A (en) * | 1967-04-07 | 1971-06-01 | Ethyl Corp | Gasoline anti-icing |
US4292046A (en) * | 1979-08-10 | 1981-09-29 | Mobil Oil Corporation | Detergent compositions |
US4536311A (en) * | 1983-12-27 | 1985-08-20 | Mobil Oil Corporation | Multipurpose antirust and friction reducing additives and compositions thereof |
CA1263913A (en) * | 1984-06-13 | 1989-12-19 | Gordon G. Knapp | Corrosion inhibitors for alcohol-based fuels |
US5024677A (en) * | 1990-06-11 | 1991-06-18 | Nalco Chemical Company | Corrosion inhibitor for alcohol and gasohol fuels |
CA2316219C (en) * | 1998-01-13 | 2005-04-12 | Baker Hughes Incorporated | Composition and method to improve lubricity in fuels |
-
2006
- 2006-02-21 US US11/358,024 patent/US20070193110A1/en not_active Abandoned
-
2007
- 2007-02-07 SG SG200700935-0A patent/SG135110A1/en unknown
- 2007-02-20 BE BE2007/0076A patent/BE1018136A3/en not_active IP Right Cessation
- 2007-02-21 DE DE102007008532A patent/DE102007008532A1/en not_active Withdrawn
- 2007-02-25 CN CNA2007100058708A patent/CN101024787A/en active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036902A (en) * | 1958-03-03 | 1962-05-29 | Standard Oil Co | Motor fuel composition |
US3644393A (en) * | 1969-08-29 | 1972-02-22 | Gulf Research Development Co | Lecithin mixtures and reaction products of 1 2-disubstituted imidazoline |
US4247300A (en) * | 1978-04-27 | 1981-01-27 | Phillips Petroleum Company | Imidazoline fuel detergents |
US4273665A (en) * | 1979-10-09 | 1981-06-16 | Mobil Oil Corporation | Friction reducing additives and compositions thereof |
US4298486A (en) * | 1979-11-23 | 1981-11-03 | Mobil Oil Corporation | Friction reducing additives and compositions thereof |
US4518782A (en) * | 1981-08-10 | 1985-05-21 | Texaco Inc. | Fuel compositions containing N-alkyl glycyl imidazoline |
US4511367A (en) * | 1984-06-13 | 1985-04-16 | Ethyl Corporation | Corrosion inhibitors for alcohol containing motor fuel |
US4797134A (en) * | 1987-08-27 | 1989-01-10 | Wynn Oil Company | Additive composition, for gasoline |
US5575823A (en) * | 1989-12-22 | 1996-11-19 | Ethyl Petroleum Additives Limited | Diesel fuel compositions |
US5833721A (en) * | 1993-08-03 | 1998-11-10 | Exxon Chemical Patents Inc | Additive for hydrocarbon oils |
US6562086B1 (en) * | 1997-06-26 | 2003-05-13 | Baker Hughes Inc. | Fatty acid amide lubricity aids and related methods for improvement of lubricity of fuels |
US20030056431A1 (en) * | 2001-09-14 | 2003-03-27 | Schwab Scott D. | Deposit control additives for direct injection gasoline engines |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080092544A1 (en) * | 2006-10-18 | 2008-04-24 | Lean Flame, Inc. | Premixer for gas and fuel for use in combination with energy release/conversion device |
US20120023811A1 (en) * | 2009-02-26 | 2012-02-02 | Dorivale Holdings Limited | Biodiesel containing non-phenolic additives and thereby possessing enhanced oxidative stability and low acid number |
US20120260876A1 (en) * | 2009-06-01 | 2012-10-18 | Innospec Limited | Method of increasing fuel efficiency |
US8549862B2 (en) | 2009-09-13 | 2013-10-08 | Lean Flame, Inc. | Method of fuel staging in combustion apparatus |
US8689561B2 (en) | 2009-09-13 | 2014-04-08 | Donald W. Kendrick | Vortex premixer for combustion apparatus |
US8689562B2 (en) | 2009-09-13 | 2014-04-08 | Donald W. Kendrick | Combustion cavity layouts for fuel staging in trapped vortex combustors |
EP3690009A1 (en) * | 2019-01-31 | 2020-08-05 | Afton Chemical Corporation | Fuel additive mixture providing rapid injector clean-up in high pressure gasoline engines |
US11390821B2 (en) | 2019-01-31 | 2022-07-19 | Afton Chemical Corporation | Fuel additive mixture providing rapid injector clean-up in high pressure gasoline engines |
WO2023183460A1 (en) | 2022-03-23 | 2023-09-28 | Innospec Fuel Specialities Llc | Compositions, methods and uses |
Also Published As
Publication number | Publication date |
---|---|
BE1018136A3 (en) | 2010-06-01 |
SG135110A1 (en) | 2007-09-28 |
CN101024787A (en) | 2007-08-29 |
DE102007008532A1 (en) | 2007-08-30 |
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