Completar frases Oil refining processVersión en línea Publicize the generalities of the oil refining process por daniel alberto becerra castro 1 distillates process oil crude atmospheric using distillation recirculation product dehydrate refining Oil process : The objective of oil refining is to distill and separate valuable ( naphtha , kerosene , diesel ) and atmospheric gas oil from the raw material through a complex . The steps of the process can be defined as follows : 1 . Preheat raw material heat recovered from product streams . 2 . Dispose of and the using the improved separation with liquid - liquid electrostatic ( desalter ) 3 . Heat the with heaters until the desired temperature is reached . 4 . Direct the crude to the distillation column . 5 . Use closed circuits to create internal liquid reflux . 6 . Extraction of the takes place in the upper part , the sides and the lower part .