ALL-SEASON UNIVERSAL DIESEL FUEL Russian patent published in 2017 - IPC C10L1/08 C10L1/04 

FIELD: chemistry.

SUBSTANCE: invention describes a multigrade universal diesel fuel comprising a base component comprising a hydrotreated or hydrocracked and hydrodewaxed fraction, an anti-wear additive in an amount of 0.04 wt %, and an ignition promoter in an amount of 0.30 wt %, the base component comprising a mixture Hydrotreated kerosene fraction boiling in the range 155-240°C, or kerosene fraction boiling within the range of 140-240°C, after hydrocracking with a hydrodewaxed fraction boiling within 180-310°C, taken in the ratio of 9-11÷89-91 vol %, providing for both the temperate and cold and arctic climate when operating high-speed diesel engines of ground and ship machinery the following values of the quality indicators of diesel fuel: cetane number not less than 51, density at 15°C 820-855 kg/m³, flash point in a closed crucible not below 62°C, kinematic viscosity at 40°C 2.00-4.00 mm²/s, cloud point not higher than minus 42°C, filterability limit temperature not higher than minus 55°C.

EFFECT: improving the quality of diesel fuel by reducing the cloud point and the limiting filterability temperature, as well as increasing the flash point in a closed crucible to expand the area and temperature conditions of fuel use, fuel can significantly reduce the cost of obtaining, storing and transporting fuel, as well as in operation techniques with its use.

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