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Jet fuel
Also known as: jet kero, turbo kerosene
Jet fuel is one of the major petroleum products produced from processing crude oil in a petroleum refinery.
Jet fuel is one of the higher-valued light products (along with gasoline and diesel). It is used primarily in the transportation sector. It is the primary fuel used in jet aircraft, but it is also used in other jet turbine applications.
The same material used to make jet fuel is also sold as the product kerosene for non-aircraft uses, but with lower quality specifications.
The kerosene used to make jet fuel has a boiling range in between gasoline and diesel range material. Consequently, jet fuel can be a swing fuel, stealing volume from gasoline and diesel when jet fuel prices are high, and contributing volume when jet fuel prices are low.
There are a number of different grades of jet fuel for different uses and markets:
- Jet A-1 - The standard grade for international commercial aviation
- Jet A - The standard grade for US domestic aviation
Jet fuel qualities
The use of jet fuel in high-performance jet turbines, at high altitudes and low pressures, requires jet fuel to have very specific product qualities. Some of the more important ones are:
- Smoke point - A measure of the tendency of a fuel to emit smoke (carbonacious particles) when burned in a jet turbine
- Flash point - A measure of the temperature at which a fuel forms a potentially ignitable mixture of hydrocarbon and air
- Freeze point - The temperature at which a fuel starts to form solid crystals
Jet fuel blending
Jet fuel is typically a simple blend of a few different kerosene streams. The most common components are:
- Straight run kerosene from the crude tower, sometimes via a kerosene merox unit
- Hydrotreated kerosene from the kerosene hydrotreater
- Hydrocracker kerosene from the hydrocracker
