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What happens at an oil refinery?
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 | | 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.
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Previous:
Back
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Book:
1001
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Section:
Science and Technology
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Chapter:
Industry
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