Aniline point is an indicator of chemical composition of motor
gasoline and diesel fuel and of their aromatic and paraffinic contents
in particular. A significant relationship between the research octane
number of unleaded motor gasoline and its a
niline point was
investigated. This relationship was evident in particular in the case
of aromatic and naphthenic compounds with higher octane numbers.
A correlation equation with a correlation coefficient of 95% was
found with an acceptable average error.
Reaction temperature and space velocity are two of the most
important process variables in catalytic reforming. They affect both
the octane number of the reformate and its volumetric yield. The
present study has demonstrated that there is a defini
te relationship
between the reaction temperature and space velocity. The effect of
the change in space velocity became insignificant at a temperature
of 425ºC where space velocity does not seem to have an effect on
the volumetric yield at a temperature of 390ºC where all lines meet.
Equally, at a space velocity of 4.3 the temperature does not seem to
have an effect on the volumetric yield, and the effect of temperature
became insignificant at a space velocity of 4.6 .
