Kerogen is a large, insoluble molecule that serves as the solid precursor to liquid and gaseous hydrocarbons. Conversely, heavy crude oil is thick and dense, containing a higher concentration of large, complex molecules that are difficult to extract and refine.
From Organic Matter to Crude Oil: Understanding Kerogen and Hydrocarbon Formation
These elements, though minute, can have significant implications for the refining process and environmental impact. Impurities and Trace Elements While hydrocarbons dominate, oil is far from pure.
Over time, this biological material was cut off from oxygen, preventing complete decay and creating a concentrated organic soup that would eventually transform into hydrocarbons. Aliphatics, which include paraffins and naphthenes, are typically the main components, while aromatics such as benzene, toluene, and xylene contribute to the density and viscosity of the oil.
From Organic Matter to Crude Oil: The Formation of Kerogen and Hydrocarbons
Oil also contains trace amounts of metals such as nickel, vanadium, and iron, which originate from the rocks surrounding the organic-rich source material. The majority of compounds found in crude oil fall into two categories: aliphatics and aromatics.
More About What is oil made out of
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More perspective on What is oil made out of can make the topic easier to follow by connecting earlier points with a few simple takeaways.
