- Aniline point
Aniline point is defined as the temperature at which equal volumes of
aniline anddiesel oil are completelymiscible .The value gives an indication of the aromatic content of diesel oil, since aniline is an aromatic compound which is dissolved on
heat ing by the aromatics in diesel oil. The greater the aniline point, the lower the aromatics in diesel oil. A higher aniline point also indicates a higher proportion ofparaffin .The diesel index is directly related to aniline point as:
DIESEL INDEX = ((ANILINE POINT(DEG F))(API GRAVITY))/100
A higher aniline point (and therefore a lower aromatic content) in diesel oil is desirable, in order to preventautoignition indiesel engines .References
* Gupta, O.P. "Fuels, Furnaces, Refractories."
* Francis, Peter. "Fuels and Fuel Technology."
* King and Braume. "Solid, Liquid, Gaseous Fuels."
Wikimedia Foundation. 2010.