Abstract:
A subject of the present invention is an anti-corrosive and antistatic lubricating composition for a hydrocarbonated mixture comprising: a) at least a compound A of Formula (I) below: in which R1 and R2 are hydrogen or a linear or branched alkyl group of 1-40 carbon atoms, comprising possibly one to five double bond(s), R1 and R2 together being able to form an aromatic or aliphatic ring of 5-6 carbon atoms, said ring being capable of substitution by one to three linear or branched alkyl group(s) of 1-40 carbon atoms, in which R1 and R2 cannot be hydrogen at the same time, and in which R3 and R4, identical or different, are chosen from the OH groups, in which R3 and R4 cannot be the OH group at the same time, or deriving from a linear or branched monol or polyol group containing 1-20 carbon atoms having a functionality of 2 to 5 inclusive; b) and at least one B compound corresponding to a fatty acid of 16-24 carbon atoms, unsaturated or not, optionally in a mixture with a carboxylic acid comprising at least one aromatic and/or olefinic polycycle or ring and/or their ester, amide or corresponding amine salts derivatives, taken alone or in a mixture.
Abstract:
The present disclosure provides compositions and methods for improving corrosion inhibition in engines combusting a fuel containing ethanol. In particular, E85 fuels are provided containing additives able to reduce, eliminate and/or prevent corrosion of engine combustion surfaces and surfaces of engine components exposed to the fuel containing ethanol.
Abstract:
The present teachings are directed toward a lubricity additive for fuel compositions that is a mixture of an amine having at least one alicyclic group and a monocarboxylic acid having up to 22 carbon atoms.
Abstract:
This invention relates to a fuel composition comprising (i) a low sulphur fuel having a sulphur content of less than 30 ppm, a bromine number of less than 10 and an ultraviolet absorbance at 319 nm is below 0.15 and (ii) an effective amount of an ashless friction reducing additive which is a fatty acid having 10-30 carbon atoms or a derivative thereof. The fuel of the specified characteristics shown improved response to the friction reducing additive in respect of its lubricity performance.
Abstract:
A fuel composition exhibiting improved anti-static properties, comprises a liquid fuel which contains less than 500 parts per million by weight sulfur; 0.001 to 1 ppm of a hydrecarbyl monoamine or hydrocarbyl-substituted poly(alkylenieamine); and 10 to 500 ppm of at least one fatty acid containing 8 to 24 carbon atoms, or an ester thereof.
Abstract:
The invention relates to low-temperature-stabilized additives for fuel oils having a sulfur content of up 0.05% by weight, comprising fatty acid mixtures of A1) from 1 to 99% by weight of at least one saturated mono- or dicarboxylic acid having from 6 to 50 carbon atoms, A2) from 1 to 99% by weight of at least one unsaturated mono- or dicarboxylic acid having from 6 to 50 carbon atoms, and B) at least one polar nitrogen-containing compound which is effective as paraffin dispersant in middle distillates, in an amount of from 0.01 to 90% by weight, based on the total weight of A1), A2) and B), and to the use of said mixtures for improving the lubrication properties of low-sulfur middle distillates.
Abstract:
This invention relates to a fuel composition comprising (i) a low sulphur fuel having a sulphur content of less than 30 ppm, a bromine number of less than 10 and an ultraviolet absorbance at 319 nm is below 0.15 and (ii) an effective amount of an ashless friction reducing additive which is a fatty acid having 10-30 carbon atoms or a derivative thereof. The fuel of the specified characteristics shown improved response to the friction reducing additive in respect of its lubricity performance.
Abstract:
A low-emissions diesel fuel comprises fungible aviation kerosene grade 55, 50-300 ppm detergent, 25-500 ppm lubricity additive and a bimetallic, fuel soluble platinum and cerium fuel borne catalyst (e.g., 0 1-2 0 ppm platinum COD and 5-20 pmm cerium oleate). The fuel can be used as is or in the form of an emulsion A method of reducing the emissions of pollutants from a diesel engine, comprising running the engine on a fuel as defined. Retarding engine timing can further reduce NOx and the use of a diesel particulate filter and/or diesel oxidation catalyst can provide further reductions in carbon monoxide, unburned hydrocarbons and particulates
Abstract:
Emissions of pollutants from diesel engines are reduced by a combination of mechanical devices and fuel additives. In one series of embodiments, diesel emissions of NO.sub.x and particulates are reduced, simultaneously with gaseous hydrocarbons and carbon monoxide, by the combined use of exhaust gas recirculation or engine timing modification, with a particulate trap and a platinum group metal catalyst composition. In another embodiment, a multi-metal catalyst composition, comprising a combination of a platinum metal catalyst composition and at least one auxiliary catalyst metal composition, especially cerium or copper, is employed to provide catalyst metal to the exhaust system including a diesel trap to lower the balance point of the particulate trap (the temperature at which the rate of trap loading equals the rate of regeneration) while also lowering the emissions of carbon monoxide and unburned hydrocarbons. Data for platinum, copper and cerium catalysts establishes effective amounts. Tests also show selective maintenance of low oxidation of SO.sub.2 to SO.sub.3.