answersLogoWhite

0

You heat it until it vaporizes. The lighter part will rise higher and collect at different levels. Roofing tar and asphalt at the bottom and gasoline towards the top of the cooling tower.

Answer:

The refining of oil from the point it is taken from the ground until it gets to the sales tank as gasoline or other petroleum product is fairly complex requiring several steps. This is made even more complex when the refinery needs to drive the process towards valuable products (aromatics and light distillates( and away from heavy tarry residues.

Staring with crude oil:

  • The crude is treated to remove any entrained water or solids
  • The clean crude is distilled into several fractions in a distillation columns.
  • Valuable fractions are sent on for further processing like desulfurization (SUlfur is collected as a sside stream)
  • Heavy ends are cracked either by heating or the addition of high pressure hydrogen to make more lighter materials which are recovered and treated further
  • Light ends are reformed to make longer chains of carbon. These are distilled.
  • Straight chained alkanes are converted to more valuable branched molecules or aromatics and recovered
  • The final products are either sold as single products or blended to achieve performance criteria
  • Additive and dye packages may be added.
User Avatar

Wiki User

14y ago

What else can I help you with?