1001 Space Earth Nature History Human World Science and Technology Chemistry Materials Force and Energy Heat and Light Electricity and Magnetism Industry Machines Electronics and Computers Cars and Trucks Railways Ships Aircraft Fishing and Agriculture Undersea Exploration

Choose a Page:How are oil and gas extracted from...*What happens at an oil refinery?*What happens to nuclear waste?How do engineers bore a large tunnel?How deep is the deepest mine?How does a nuclear power station m...How much oil can a supertanker carry?Is engineering used in the food in...How is yarn made into cloth?What is a service industry?How is aluminium made?How is paper made?How is steel made? What happens at an oil refinery? A fractionating tower At an oil refinery, crude oil is distilled in a process called fractionation. The oil is heated at the bottom of a tall column. Gas and light fuels like petroleum collect at the top, leaving heavy oils like bitumen to settle at the bottom.   Previous: Back Book: 1001 Section: Science and Technology Chapter: Industry