What elements make up petroleum?

Answer 1

Generally, carbon and hydrogen make up 90% of the elements in petroleum. The other elements are nitrogen, oxygen, sulfur and very minor amounts of metals. These metals are usually called trace metals, and include valadium, nickel and iron.

Please remember that oil is a very complex mixture of hydrocarbon compounds, so to fully description of an oil sample, these compounds need to be identified.

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Answer 2

Petroleum is primarily composed of hydrocarbons, which are organic compounds made up of hydrogen and carbon atoms. It also contains varying amounts of sulfur, nitrogen, and oxygen compounds. Other elements present in smaller quantities include traces of metals like nickel and vanadium.