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Cold filter plugging point (CFPP) is the lowest temperature, expressed in degrees Celsius (°C), at which a given volume of diesel type of fuel still passes through a standardized filtration device in a specified time when cooled under certain conditions. This test gives an estimate for the lowest temperature that a fuel will give trouble free ...
Diesel fuel is prone to waxing or gelling in cold weather; both are terms for the solidification of diesel oil into a partially crystalline state. Below the cloud point the fuel begins to develop solid wax particles giving it a cloudy appearance. The presence of solidified waxes thickens the oil and clogs fuel filters and injectors in engines.
The cloud point of a nonionic surfactant or glycol solution is the temperature at which the mixture starts to phase-separate, and two phases appear, thus becoming cloudy. This behavior is characteristic of non-ionic surfactants containing polyoxyethylene chains, which exhibit reverse solubility versus temperature behavior in water and therefore ...
The gel point of petroleum products is the temperature at which the liquids gel so they no longer flow by gravity or can be pumped through fuel lines. This phenomenon happens when the petroleum product reaches a low enough temperature to precipitate interlinked paraffin wax crystals throughout the fluid .
The cloud point (or gel point) can be adjusted down to −40 °C (−40 °F) [10] during the manufacturing process, compared to petrodiesel's cloud point of −30 °C (−22 °F), [failed verification] which could improve the cloud point of diesel when blended. The cloud point is the temperature when the wax precipitates out of the fuel in the ...
Renewable diesel from vegetable oil is a growing substitute for petroleum. [14] California fleets used over 200 million US gallons (760,000 m 3 ) of renewable diesel in 2017. The California Air Resources Board predicts that over 2 billion US gallons (7,600,000 m 3 ) of fuel will be consumed in the state under its Low Carbon Fuel Standard ...
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A diesel-fueled engine has no ignition source (such as the spark plugs in a gasoline engine), so diesel fuel can have a high flash point, but must have a low autoignition temperature. Jet fuel flash points also vary with the composition of the fuel. Both Jet A and Jet A-1 have flash points between 38 and 66 °C (100 and 151 °F), close to that ...