This research was conducted to investigate the pyrolysis behavior of c
rude oils and their fractions using differential scanning calorimetry
and thermogravimetry. Experiments were performed at 10 degrees C/min h
eating rate under nitrogen atmosphere. An examination of the fractions
of crude oils shows that pyrolysis mechanisms depend on the chemical
nature of the constituents. A study of the weight loss properties of S
ARA constituents suggests that each fraction in whole crude oil follow
s its own reaction (distillation and cracking) pathway independent of
the presence of other fractions.