Crude oil is a fossil fuel, meaning that it was made naturally from decaying plants and animals living in ancient seas millions of years ago -- most places you can find crude oil were once sea beds.
Most common refining process is called fractional distillation. You basically heat crude oil up, let it vaporize and then condense the vapor. Refineries must treat the oil to remove impurities.
- Millions of years of heat and pressure
Most common refining process is called fractional distillation. You basically heat crude oil up, let it vaporize and then condense the vapor. Refineries must treat the oil to remove impurities.
- Little is wasted
- Key to every industrial nation