3.1.1. Ethylene production
Distillation of crude oil leads to the production of the
naphtha side fraction, which then is treated with hydrogen
in the desulfurization unit for the removal of existed
sulfur, hydrogen and nitrogen. Then the fraction is
treated in the thermal cracking unit where heavy hydrocarbons
is cracked into lighter alkane and alkenes molecules.
Eventually ethylene is obtained from various separation
processes.