Abstract:
The present invention is related to the use of formulations of new random copolymers and terpolymers, synthesized by a method of semi continuous emulsion polymerization, and that function as flow improvers, lowering the pour point and reducing the viscosity of Mexicans crude oils, which have gravities within the range of 9 to 30° API.
Abstract:
A synthetic fuel is provided. The synthetic fuel includes a base fuel having a first energy density and a compound, the compound including a water absorbing agent for absorbing water from the base fuel to prevent poor combustion and an explosive agent having a detonative energy value that is sufficient so as to provide the compound with a second energy density equal to or greater than the first energy density.
Abstract:
Aviation fuel formulations receive many benefits when a manganese-containing additive is incorporated in that composition. However, to the extent that the use of a manganese-containing compound may result in the formation of engine deposits during combustion, it is beneficial to further provide a scavenger compound to the fuel composition. This scavenger compound may include a phosphorus-containing compound, an organobromide compounds, and/or a tricarbonyl compound.
Abstract:
A method of operating a turbo charged diesel engine is provided where a viscosity increasing component in a diesel fuel composition is used, to improve the acceleration performance, at low engine speeds (for example up to 2200 rpm). This method may be used for reducing the engine speed at which the turbo charger reaches its maximum speed when accelerating at low engine speeds, or reducing the time taken for the turbo charger to reach its maximum speed. It may mitigate a deterioration in the acceleration performance of the engine due to another cause. The VK 40 of the resultant fuel composition is suitably 2.8 mm2/s (centistokes) or greater. The viscosity increasing component may in particular be a Fischer-Tropsch derived fuel component, an oil or a fatty acid alkyl ester. A density increasing component may be used in the fuel composition together with the viscosity increasing component.
Abstract:
The disclosure provides conductivity improving concentrates and methods for improving conductivity and reducing risks associated with static discharge in middle distillate fuel compositions, particularly diesel fuels. The conductivity improvement is provided by the combination of a detergent and a cold flow improver, which are preferably and advantageously pre-blended in an additive concentrate. The disclosure is particularly beneficial for ultra-low sulfur fuel compositions in that it provides a conductivity benefit without adding sulfur into the fuel composition.
Abstract:
A vehicle fuel composition comprises: a light or low-carbon hydrocarbon or pentane fraction; a non-lead anti-knocking agent including methyl tert-butyl ether, tert-amyl methyl ether, anhydrous methanol and anhydrous ethanol; a fluorocarbon cation surfactant and/or a fluorocarbon non-ionic surfactant; which are thoroughly blended to obtain a motor fuel having a research octane number of more than ninety for enhancing anti-knocking property and also for minimizing carbon accumulation in a combustion engine system.
Abstract:
The invention concerns semi-fluorinated alkanes of the general formulae RFRH or RFRHRF, RF being a linear or branched perfluoroalkyl group and RH being a linear or branched saturated (hydrocarbon)-alkyl group.
Abstract:
The invention concerns semi-fluorinated alkanes of the general formulae RFRH or RFRHRF, RF being a linear or branched perfluoroalkyl group and RH being a linear or branched saturated (hydrocarbon)-alkyl group.
Abstract:
Diesel fuel oil compositions comprising high molecular weight, high total base number nitrogen containing dispersants provide exceptional diesel fuel injector cleanliness.
Abstract:
A process for reacting olefinic compounds, certain carboxylic reactants, and aldehydes or ketones and products prepared by the process. The compositions of the process are useful as intermediates for the preparation of additives for lubricants and fuels.