Chemical compounds in crude oil
appreciable amount of the naphthene compounds, (10% by composition). Crude oils also contain a great variety of heteroatomic chemical constituents, comprising of crude oil. The A.Psulphur, oxygen, carbondioxide, nitrogen and trace metals. Nitrogen varies from 0.01 to 2%. as d. issolved gas in the crude oil (Levinson, 1974). Oxygen occurs in Petroleum is a complex mixture of organic compounds, all of which provide clues to some aspect of its origin, burial in sediments and chemical modification. A porphyrin is one such chemical that is found in crude oil and also in plants and blood. Interestingly, porphyrins break down rapidly in the presence of oxygen or other oxidizing conditions. Geologists often suggest that porphyrins are evidence for widespread reducing environments during the deposition of petroleum source rocks. However