refining crude oil

Chevron's Pascagoula Refinery processes 350,000 barrels (14.7 million gallons) of crude oil a day - an amount equivalent to the size of a football field covered to a depth of 41 feet.

Chevron Pascagoula Refinery is primarily a fuels refinery, in that we mainly manufacture motor gasoline, about 130,000 barrels per day (BPD); jet fuel, 50,000 BPD; and diesel fuel, 68,000 BPD. Our other products include fuel oils such as Liquefied Petroleum Gas (LPG), aviation gasoline, petroleum coke and sulfur.

The refinery’s specialty products include paraxylene, a compound used as a feed stock in the textile and plastics industries; benzene and ethylbenzene, used in the manufacturing of a wide range of products, including automobile tires, sporting goods, nylon, and pharmaceuticals; propylene, used in the manufacture of plastics; and premium base oils, used in high performance lubricants, including motor oils for consumer and commercial use.

Refining crude oil into transportation products is a complex process involving many steps. The key steps include:

  • Separation: Crude oil is separated into different parts based on the size of the molecules.
  • Treatment: Using hydrogen and catalyst, natural impurities are removed from crude oil to meet California’s emissions standards, which are the toughest in the nation.
  • Cracking: Large molecules of crude oil are broken into small constituent elements that make up different transportation fuels.