Abstract: A composition of fuel additives includes at least a first additive having a partial ester derivative of polyols and a second additive having a quaternary ammonium salt. The first additive includes at least 50% by mass of a compound A selected from the partial esters of polyols and saturated or unsaturated, linear or branched, cyclic or acyclic C4 to C36 monocarboxylic aliphatic hydrocarbarbons, the partial esters being able to be used alone or in a mixture. The disclosure also relates to a diesel fuel including such a composition and the use of the fuel for limiting the deposits in a diesel engine. In particular, the disclosure relates to the use of the fuel containing the composition of additives of the present disclosure in direct-injection diesel engines.

Abstract: Certain UV filter compounds improve the combustion properties of diesel fuel compositions, and in particular modify the ignition delay and/or modify the burn period and/or modify the peak pressure and/or increase the cetane number of the liquid fuel composition. A liquid fuel composition is provided containing: (a) a diesel base fuel suitable for use in an internal combustion engine; and (b) in the range of 10 ppmw to 2 wt %, by weight of the liquid fuel composition, of one or more organic UV filter compounds selected from imidazoles, triazines, triazones and triazoles, and mixtures thereof.

Abstract: A liquid fuel composition comprising: (a) a gasoline base fuel suitable for use in an internal combustion engine; (b) one or more organic UV filter compounds selected from imidazoles, triazines, triazone and triazoles, and mixtures thereof. The liquid fuel composition provides benefits in terms of improved acceleration and/or power output of an internal combustion engine fuelled by said fuel as well as an increase in flame speed.

Abstract: Disclosed are additive compositions for superior quality diesel and biodiesel fuels for improving the lacquering resistance of fuels, in particular those intended for engines provided with Euro 4 to Euro 6 fuel injection systems. The additive compositions include at least one antioxidant of hindered phenol type and at least one metal passivator.

Abstract: An additive mixture for fuels including a) at least one N-formal, b) at least one antioxidant and c) at least one corrosion inhibitor. The additive mixture ensures that the additized fuels and lubricants have biocidal and corrosion-inhibiting additization, especially when they include proportions of renewable raw materials, such as biodiesel, and when they are in contact with copper-containing surfaces.

Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which R is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

Abstract: An additive composition improves the stability and the engine performances of gas oils, including gas oils of the non-road type in compliance with the decree of 10 Dec. 2010, including: (a) at least one metal deactivator or chelating agent, (b) at least one antioxidant of the hindered phenol type (alkylphenol), (c) at least one dispersant and/or detergent, (d) at least one metal passivator, where the compositions include improved properties, in particular relative to the oxidation resistance, storage stability, thermal stability, reduction in fouling of the injectors, reduction in loss of power, reduction in the tendency of the filters to clog.

Abstract: The use of the reaction product formed from a hydrocarbyl-substituted dicarboxylic acid or anhydride thereof and a nitrogen compound I or a salt thereof as an additive in a fuel for reducing fuel consumption in gasoline engines.

Abstract: A method for cleaning internal components of a fuel injector for a diesel engine. The method includes operating a fuel injected diesel engine on a fuel composition comprising a major amount of fuel and from about 10 to about 100 ppm by weight based on the total weight of the fuel composition of (A) a compound of the formula: and tautomers and enantiomers thereof, wherein R2 is a hydrocarbyl group having a number average molecular weight ranging from 100 to 5000.

Abstract: A fuel additive composition, fuel comprising said additive, and methods of use thereof are provided. The fuel additive composition comprises a synergistic combination of a hydrocarbyl-substituted succinimide dispersant and a compound of the following formula: and tautomers and enantiomers thereof, wherein R3 is a hydrocarbyl group having a number average molecular weight ranging from about 100 to about 5000, and wherein the weight ratio of (a) to (b) ranges from about 5:1 to about 1:5. The fuel additive composition is present in fuel in an amount sufficient to improve the conductivity properties of the fuel.

Abstract: A diesel fuel containing a soot dispersant additive which is a grafted and derivatized low molecular weight copolymer of ethylene and at least one C3-C10 alpha monoolefin is provided. Also provided is a method for improving the fuel economy of a diesel engine which comprises operating the diesel engine with a fuel composition comprising (a) a major amount of a diesel fuel and (b) a minor fuel economy improving effective amount of the soot dispersant additive.

Abstract: A diesel fuel additive package, diesel fuel containing the additive and methods for operating an engine on the diesel fuel and additive. The fuel additive includes a reaction product of (a) a hydrocarbyl substituted dicarboxylic acid or anhydride, and (b) an amine compound or salt thereof of the formula wherein R is selected from hydrogen and a hydrocarbyl group containing from about 1 to about 15 carbon atoms, and R1 is selected from hydrogen and a hydrocarbyl group containing from about 1 to about 20 carbon atoms. The reaction product contains at least one amino triazole group. Component (2) of the additive is a hydrocarbyl succinimide dispersant. The additive also includes (3) a C2 to C10 alkyl alcohol; and (4) optionally, a lubricity additive. In the additive, a weight ratio of component (1) to component (2) in the fuel ranges from about 1:3 to about 1:5.

Abstract: An additive mixture for fuels including a) at least one N-formal, b) at least one antioxidant and c) at least one corrosion inhibitor. The additive mixture ensures that the additized fuels and lubricants have biocidal and corrosion-inhibiting additization, especially when they include proportions of renewable raw materials, such as biodiesel, and when they are in contact with copper-containing surfaces.

Abstract: A diesel fuel additive composition, a fuel containing the fuel additive, a method for improving diesel engine performance using the additive. The diesel fuel additive includes a reaction product of (a) a hydrocarbyl-substituted acylating agent and (b) a reactant selected from the group consisting of a nitrogen-containing compound, a hydroxyl-containing compound, and water that provides a reaction product selected from the group consisting (1) a mono-amide/mono-acid or metal free mono-acid salt thereof, (2) a diacid or metal free diacid salt thereof, and (3) mono-ester/mono-acid or metal free mono-acid salt thereof. The reaction product includes at least about 10 molar percent acid groups based on total moles of the reaction product.

Abstract: A method of removing deposits from a diesel engine, the method comprising combusting in the engine a diesel fuel composition comprising an engine cleaning additive, wherein the engine cleaning additive is the product of a Mannich reaction between: (a) an aldehyde; (b) ammonia, hydrazine or an amine; and (c) an optionally substituted phenol; wherein the or each substituent of the phenol component (c) has an average molecular weight of less than 400.

Abstract: Methods and compositions for the production of oil, fuels, oleochemicals, and other compounds in recombinant microorganisms are provided, including oil-bearing microorganisms and methods of low cost cultivation of such microorganisms. Microalgal cells containing exogenous genes encoding, for example, a lipase, a sucrose transporter, a sucrose invertase, a fructokinase, a polysaccharide-degrading enzyme, a keto acyl-ACP synthase enzyme, a fatty acyl-ACP thioesterase, a fatty acyl-CoA/aldehyde reductase, a fatty acyl-CoA reductase, a fatty aldehyde reductase, a fatty aldehyde decarbonylase, and/or an acyl carrier protein are useful in manufacturing transportation fuels such as renewable diesel, biodiesel, and renewable jet fuel, as well as oleochemicals such as functional fluids, surfactants, soaps and lubricants.

Abstract: A method of improving oxidation properties of biodiesel-containing fuel composition. The method provides combining a major amount of middle distillate fuel containing more than about 5 volume percent biodiesel components with a minor amount of a synergistic mixture of (A) a hydrocarbyl-substituted succinimide dispersant and (B) a compound of the formula: and tautomers and enantiomers thereof. In the formula, R2 is a hydrocarbyl group having a number average molecular weight ranging from 100 to 5000. The synergistic mixture has a weight ratio of A:B ranging from 2:1 to 10:1.

Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which R is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which R is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

Abstract: A fuel additive concentrate, fuel comprising said additive concentrate, and method for improving the antifoam performance of a fuel are provided. The additive concentrate comprises (a) an aminotriazole compound comprising the reaction product of (i) a hydrocarbyl carbonyl compound, and (ii) an amine compound or salt thereof of formula (I) wherein R is selected from the group consisting of a hydrogen and a hydrocarbyl group containing from about 1 to about 15 carbon atoms, and R1 is selected from the group consisting of hydrogen and a hydrocarbyl group containing from about 1 to about 20 carbon atoms; and (b) a hydrocarbyl-substituted succinimide dispersant, wherein the ratio of (a) to (b) ranges from about 1:10 to about 10:1.

Abstract: A diesel fuel, diesel fuel additive concentrate and method for improving the performance of fuel injectors for a diesel engine are provided. The diesel fuel includes a major amount of middle distillate fuel; and a reaction product of a hydrocarbyl substituted dicarboxylic acid or anhydride and an amine compound or salt. The amine compound has the formula wherein R is selected from the group consisting of a hydrogen and a hydrocarbyl group containing from about 1 to about 15 carbon atoms, and R1 is selected from the group consisting of hydrogen and a hydrocarbyl group containing from about 1 to about 20 carbon atoms. The reaction product contains at least one amino triazole group and is present in the fuel in an amount sufficient to improve the performance of diesel fuel injectors.

Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which P is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

Abstract: The present invention provides a polymeric a fuel composition comprising (i) a fuel; and (ii) a polymeric compound; wherein the polymeric compound comprises at least one monomer unit of Formula I wherein R1 is H or a C1-10 hydrocarbyl group; wherein L is an optional C1-30 hydrocarbyl linker group; and wherein heterocycle is an optionally substituted heterocyclic ring.

Abstract: Injector deposits in a direct injection gasoline engine are reduced by providing as fuel for the operation of said direct injection engine a fuel composition comprising a fuel-soluble compound having the formula (I): wherein R1 and R2 are independently C1-4 alkyl, R3 is a radical of the formula CmH2m wherein m is an integer of 2 to 6, R4 and R5 are each independently (i) hydrogen (ii) C1-4 alkyl, wherein R6 is selected from the group consisting of hydrogen and C1-4 alkyls and R7 is selected from the group consisting of hydrogen and C1-30 alkyl, (iv) wherein R8 is a saturated or unsaturated, linear, branched or cyclic, C7-23 hydrocarbyl group or (v) wherein R4 and R5 together with the nitrogen atom to which they are bonded, form a cyclic ring in which further hetero atoms.

Abstract: There is provided use of a thermal stabiliser for increasing the thermal stability of a cetane improver in a fuel composition comprising (i) a fuel, and (ii) the cetane improver wherein the thermal stabiliser is a compound of the formula H—R1 wherein H is a group comprising a heterocyclic group and R1 is a hydrocarbyl group having from 10 to 200 carbons.

Abstract: This invention relates to low-sulfur diesel fuels which are useful with diesel engines equipped with exhaust system particulate traps. These fuels contain an effective mount of an organometallic complex to lower the ignition temperature of exhaust particles collected in the trap. The sulfur content of these diesel fuels is no more than about 0.1% by weight, preferably no more than about 0.05% by weight. The organometallic complex is soluble or stably dispersible in the diesel fuel and is derived from (i) an organic compound containing at least two functional groups attached to a hydrocarbon linkage, and (ii) a metal reactant capable of forming a complex with the organic compound (i), the metal being any metal capable of reducing the ignition temperature of the exhaust particles. The functional groups include .dbd.X, --XR, --NR.sub.2, --NO.sub.2, .dbd.NR, .dbd.NXR, .dbd.N--R*--XR, ##STR1## --CN, --N.dbd.NR and --N.dbd.CR.sub.

Abstract: Organic triazole-derived carboxylic acid-esters, and ester-amide-amine salts have been found to be effective antiwear additives for lubricants and are highly useful in fuels.

Abstract: Reaction products of hydrocarbylsuccinic anhydrides, hydroxyl-containing amines and triazoles have been found to be effective antirust, antioxidant, anti-corrosion, antiwear, dispersant/detergent and thermal color stabilizing additives.

Abstract: Tolyltriazole derived esters of tri, tetra, and poly carboxylic acids or an acid generating compound have been found to be effective lubricity additives for lube oils, greases, or distillate fuels.

Abstract: The invention relates to lubricant and fuel additives having antiwear and friction reducing properties. The invention also relates to compositions of oils with viscosities appropriate for lubricants, greases produced therefrom, and fuels and methods for making these compositions. Described in this invention are products of nitrogen heterocycles, such as benzotriazole and tolyltriazole, with amines, such as alkyl amines, aliphatic diamines, alicyclic amines, heterocyclic amines, propylene amines, and aliphatic etheramines, that are linked using carbonyl compounds (e.g., aldehyde, ketone or glyoxal). Additionally, products generated by the reaction of carboxylic acids or carboxylic acid generating compounds (e.g., salts or esters) with carbonyl (e.g., aldehyde, ketone or glyoxal) coupled nitrogen heterocycles and amines, including those described above, are also included in this invention. These products can be used in fuels and lubricants to produce improved antiwear and friction reducing properties.

Abstract: A lubricant of fuel composition contains a multifunctional antioxidant/metal deactivating and thermal stabilizing amount of a tolyltriazole-derived Mannich base made from a tolyltriazole, an aliphatic amine, such as diisobutylamine or bis(2-ethylhexyl)amine, a cyclic amine, such as 1,4-diaminocyclohexane or ether amines exemplified by C.sub.6 to C.sub.13 alkoxypropylamines and polyether primary amines such as those derived from nonylphenol ethyoxylates and formaldehyde. The reaction products are, optionally, treated with epoxide.

Abstract: The resistance of in-tank fuel pump copper commutators to become excessively worn by exposure to petroleum fuels containing at least 10 mg/liter of elemental sulfur is substantially increased by the addition of at least about 5 mg/liter of an organomercaptan, compound and at least about 25 mg/liter of a copper metal deactivator capable of forming a sulfur - resistant barrier coating on the copper commutator, to produce a novel fuel composition.

Abstract: Organic triazole-derived carboxylic acid-esters, and ester-amide-amine salts have been found to be effective antiwear additives for lubricants.

Abstract: A fuel composition contains an antiwear additive comprising the reaction product of a fatty acid salt comprising oleic acid, stearic acid, tall oil acid and dimer acid having 10 to 40 carbon atoms and an aromatic triazole such as tolyltriazole and method of making the same.

Abstract: A fuel composition contains an antiwear additive comprising the reaction product of heterocyclic compound having antiwear activity such as a triazole e.g. benzotriazole, tolyltriazole, and a copolymer with succinic anhydride moiety, such as an olefin/maleic anhydride copolymer.

Abstract: A composition adapted for use as a corrosion inhibitor in petroleum-based fuel. The composition comprises an oil-soluble adduct of a triazole and a basic nitrogen compound selected from the group consisting of polyamines, alkoxyamines, aryloxyamines and monoalkyleneamines. Methods for preparation and use of such compositions are also disclosed. In addition, a petroleum-based fuel composition of reduced tendency to corrode copper and aluminum surfaces contacted by the fuel composition is disclosed. The composition comprises a petroleum-based fuel and an oil-soluble adduct of a triazole and a basic nitrogen compound.