What is the main "impurity" collected with the oil?

Chemistry

1 answer:

NikAS [45]3 years ago

7 0

Answer:

Sulfur is considered an “impurity” in petroleum. Sulfur in crude oil can corrode metal in the refining process and contribute to air pollution. Petroleum with more than 0.5% sulfur is called “sour,” while petroleum with less than 0.5% sulfur is “sweet.”

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