naphthene series

petroleum

Also known as: naphthene

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July 1, 2026

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The naphthene series refers to a group of cyclic hydrocarbons with the general formula C_nH_2n. These are saturated closed-ring compounds, meaning they contain only single bonds and form a ring structure. Naphthenes are a significant component of crude oil and are found in various refinery products. Crude oils rich in naphthenes are often referred to as asphalt-base crudes. While the term "naphthene" specifically denotes cycloparaffins, it's important not to confuse it with naphthalene, a different aromatic hydrocarbon composed of two fused benzene rings. Naphthenic acids, derived from naphthenes, are also found in petroleum and have industrial uses.123456

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petroleum refining
Saturated molecules
Saturated cyclo-compounds are called naphthenes. Naphthenic crudes tend to be poor raw materials for lubricant manufacture, but they are more easily converted into high-quality gasolines than are the paraffin compounds.
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Saturated cyclo-compounds are called naphthenes. Naphthenic crudes tend to be poor raw materials for lubricant manufacture, but they are more easily converted into high-quality gasolines than are the paraffin compounds.
Read More